© 2007-2012 Microchip Technology Inc. DS70292G-page 1
dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04
Operating Conditions
• 3.0V to 3.6V, -40ºC to +150ºC, DC to 20 MIPS
• 3.0V to 3.6V, -40ºC to +125ºC, DC to 40 MIPS
Clock Management
• 2% internal oscillator
• Programmable PLL and oscillator clock sources
• Fail-Safe Clock Monitor (FSCM)
• Independent Watchdog Timer
• Low-power management modes
• Fast wake-up and start-up
Core Performance
• Up to 40 MIPS 16-bit dsPIC33F CPU
• Single-cycle MUL plus hardware divide
Advanced Analog Features
• 10/12-bit ADC with 1.1Msps/500 ksps rate:
- Up to 13 ADC input channels and four S&H
- Flexible/Independent trigger sources
• 150 ns Comparators:
- Up to two Analog Comparator modules
- 4-bit DAC with two ranges for Analog Comparators
Input/Output
• Software remappable pin functions
• 5V-tolerant pins
• Selectable open drain and internal pull-ups
• Up to 5 mA overvoltage clamp current/pin
• Multiple external interrupts
System Peripherals
• 16-bit dual channel 100 ksps Audio DAC
• Cyclic Redundancy Check (CRC) module
• Up to five 16-bit and up to two 32-bit Timers/
Counters
• Up to four Input Capture (IC) modules
• Up to four Output Compare (OC) modules
• Real-Time Clock and Calendar (RTCC) module
Communication Interfaces
• Parallel Master Port (PMP)
• Two UART modules (10 Mbps)
- Supports LIN 2.0 protocols
- RS-232, RS-485, and IrDA® support
• Two 4-wire SPI modules (15 Mbps)
• Enhanced CAN (ECAN) module (1 Mbaud) with
2.0B support
•I
2C module (100K, 400K and 1Mbaud) with
SMbus support
• Data Converter Interface (DCI) module with I2S
codec support
Direct Memory Access (DMA)
• 8-channel DMA with no CPU stalls or overhead
• UART, SPI, ADC, ECAN, IC, OC, INT0
Qualification and Class B Support
• AEC-Q100 REVG (Grade 0 -40ºC to +150ºC)
• Class B Safety Library, IEC 60730, VDE certified
Debugger Development Support
• In-circuit and in-application programming
• Two program breakpoints
• Trace and run-time watch
Packages
Type SPDIP SOIC QFN-S QFN TQFP
Pin Count 28 28 28 44 44
I/O Pins 21 21 21 35 35
Contact Lead/Pitch .100” 1.27 0.65 0.65 0.80
Dimensions .285x.135x1.365” 7.50x2.05x17.9 6x6x0.9 8x8x0.9 10x10x1
Note: All dimensions are in millimeters (mm) unless specified.
16-bit Digital Signal Controllers (up to 128 KB Flash and
16K SRAM) with Advanced Analog
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 2 © 2007-2012 Microchip Technology Inc.
dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, AND
dsPIC33FJ128GPX02/X04 PRODUCT
FAMILIES
The device names, pin counts, memory sizes, and
peripheral availability of each device are listed below.
The following pages show their pinout diagrams.
TABLE 1: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
CONTROLLER FAMILIES
Device
Pins
Program Flash Memory
(Kbyte)
RAM (Kbyte)(1)
Remappable Peripheral
RTCC
I2C™
CRC Generator
10-bit/12-bit ADC
(Channels)
16-bit Audio DAC (Pins)
Analog Comparator
(2 Channels/Voltage Regulator)
I/O Pins
Packages
Remappable Pins
16-bit Timer(2)
Input Capture
Output Compare
Standard PWM
Data Converter Interface
UART
SPI
ECAN™
External Interrupts(3)
8-bit Parallel Master
Port (Address Lines)
dsPIC33FJ128GP804 44 128 16 26 5 4 4 1221311113 6 1/1 11 35 QFN
TQFP
dsPIC33FJ128GP802 28 128 16 16 5 4 4 122131111041/0 221SPDIP
SOIC
QFN-S
dsPIC33FJ128GP204 44 128 8 26 5 4 4 122031111301/1 1135QFN
TQFP
dsPIC33FJ128GP202 28 128 8 16 5 4 4 122031111001/0 221SPDIP
SOIC
QFN-S
dsPIC33FJ64GP804 4464162654 4 122131111361/1 1135QFN
TQFP
dsPIC33FJ64GP802 2864161654 4 122131111041/0 221SPDIP
SOIC
QFN-S
dsPIC33FJ64GP204 4464 82654 4 122031111301/1 1135QFN
TQFP
dsPIC33FJ64GP202 2864 81654 4 122031111001/0 221SPDIP
SOIC
QFN-S
dsPIC33FJ32GP304 4432 42654 4 122031111301/1 1135QFN
TQFP
dsPIC33FJ32GP302 2832 41654 4 122031111001/0 221SPDIP
SOIC
QFN-S
Note 1: RAM size is inclusive of 2 Kbytes of DMA RAM for all devices except dsPIC33FJ32GP302/304, which include 1 Kbyte of DMA RAM.
2: Only four out of five timers are remappable.
3: Only two out of three interrupts are remappable.
© 2007-2012 Microchip Technology Inc. DS70292G-page 3
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Pin Diagrams
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28-Pin SPDIP, SOIC
AVDD
AVSS
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
VSS
VCAP
INT0/RP7(1)/CN23/PMD5/RB7
TDO/SDA1/RP9(1)/CN21/PMD3/RB9
TCK/SCL1/RP8(1)/CN22/PMD4/RB8
AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
PGED2/TDI/RP10(1)/CN16/PMD2/RB10
PGEC2/TMS/RP11(1)/CN15/PMD1/RB11
MCLR
VSS
VDD
AN0/VREF+/CN2/RA0
AN1/VREF-/CN3/RA1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
SOSCO/T1CK/CN0/PMA1/RA4
SOSCI/RP4(1)/CN1/PMBE/RB4
OSC2/CLKO/CN29/PMA0/RA3
OSC1/CLKI/CN30/RA2
AN5/C1IN+/RP3(1)/CN7/RB3
AN4/C1IN-/RP2(1)/CN6/RB2
PGEC1/ AN3/C2IN+/RP1(1)/CN5/RB1
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
dsPIC33FJ64GP802
dsPIC33FJ128GP802
28-Pin SPDIP, SOIC
dsPIC33FJ32GP302
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AVDD
AVSS
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
VSS
VCAP
INT0/RP7(1)/CN23/PMD5/RB7
TDO/SDA1/RP9(1)/CN21/PMD3/RB9
TCK/SCL1/RP8(1)/CN22/PMD4/RB8
AN9/RP15(1)/CN11/PMCS1/RB15
AN10/RTCC/RP14(1)/CN12/PMWR/RB14
AN11/RP13(1)/CN13/PMRD/RB13
AN12/RP12(1)/CN14/PMD0/RB12
PGED2/TDI/RP10(1)/CN16/PMD2/RB10
PGEC2/TMS/RP11(1)/CN15/PMD1/RB11
MCLR
VSS
VDD
AN0/VREF+/CN2/RA0
AN1/VREF-/CN3/RA1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
SOSCO/T1CK/CN0/PMA1/RA4
SOSCI/RP4(1)/CN1/PMBE/RB4
OSC2/CLKO/CN29/PMA0/RA3
OSC1/CLKI/CN30/RA2
AN5/C1IN+/RP3(1)/CN7/RB3
AN4/C1IN-/RP2(1)/CN6/RB2
PGEC1/ AN3/C2IN+/RP1(1)/CN5/RB1
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
dsPIC33FJ64GP202
dsPIC33FJ128GP202
Note 1: The RPx pins can be used by any remappable peripheral. See Tab l e 1 in this section for the list of available peripherals.
= Pins are up to 5V tolerant
= Pins are up to 5V tolerant
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 4 © 2007-2012 Microchip Technology Inc.
Pin Diagrams (Continued)
28-Pin QFN-S(2)
2
3
6
1
18
19
20
21
22
15
7
16
17
23
24
25
26
27
28
5
4
MCLR
VSS
VDD
AN0/VREF+/CN2/RA0
AN1/VREF-/CN3/RA1
AVDD
AVSS
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
SOSCO/T1CK/CN0/PMA1/RA4
SOSCI/RP4(1)/CN1/PMBE/RB4
VSS
OSC2/CLKO/CN29/PMA0/RA3
OSC1/CLKI/CN30/RA2
VCAP
INT0/RP7(1)/CN23/PMD5/RB7
TDO/SDA1/RP9(1)/CN21/PMD3/RB9
TCK/SCL1/RP8(1)/CN22/PMD4/RB8
AN5/C1IN+/RP3(1)/CN7/RB3
AN4/C1IN-/RP2(1)/CN6/RB2
PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1
AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
PGED2/TDI/RP10(1)/CN16/PMD2/RB10
PGEC2/TMS/RP11(1)/CN15/PMD1/RB11
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
dsPIC33FJ64GP802
dsPIC33FJ128GP802
14
13
12
11
10
9
8
Note 1: The RPx pins can be used by any remappable peripheral. See Tabl e 1 in this section for the list of available peripherals.
2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.
= Pins are up to 5V tolerant
© 2007-2012 Microchip Technology Inc. DS70292G-page 5
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Pin Diagrams (Continued)
28-Pin QFN-S(2)
dsPIC33FJ128GP202
MCLR
VSS
VDD
AN0/
V
REF
+/CN2/RA0
AN1/
V
REF
-/CN3/RA1
AV
DD
AVSS
PGED1/
AN2/C2IN-/RP0
(1)
/CN4/RB0
PGEC3/ASCL1/RP6
(1)
/CN24/PMD6/RB6
SOSCO/T1CK/CN0/PMA1/RA4
SOSCI/
RP4
(1)
/CN1/PMBE/RB4
VSS
OSC2/CLKO/CN29/PMA0/RA3
OSC1/CLKI/CN30/RA2
VCAP
INT0/RP7
(1)
/CN23/PMD5/RB7
TDO/SDA1/RP9
(1)
/CN21/PMD3/RB9
TCK/SCL1/RP8
(1)
/CN22/PMD4/RB8
AN5/C1IN+/RP3
(1)
/CN7/RB3
AN4/C1IN-/
RP2
(1)
/CN6/RB2
PGEC1/
AN3/C2IN+/RP1
(1)
/CN5/RB1
AN9/DAC1LN/
RP15
(1)
/CN11/PMCS1/RB15
AN10/DAC1LP/RTCC/
RP14
(1)
/CN12/PMWR/RB14
AN11/
RP13
(1)
/CN13/PMRD/RB13
AN12/
RP12
(1)
/CN14/PMD0/RB12
PGED2/TDI/RP10
(1)
/CN16/PMD2/RB10
PGEC2/TMS/RP11
(1)
/CN15/PMD1/RB11
PGED3/ASDA1/RP5
(1)
/CN27/PMD7/RB5
dsPIC33FJ64GP202
dsPIC33FJ32GP302
Note 1: The RPx pins can be used by any remappable peripheral. See Tabl e 1 in this section for the list of available peripherals.
2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.
=
Pins are up to 5V tolerant
2
3
6
1
18
19
20
21
22
15
7
16
17
23
24
25
26
27
28
5
4
14
13
12
11
10
9
8
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 6 © 2007-2012 Microchip Technology Inc.
Pin Diagrams (Continued)
44-Pin QFN(2)
dsPIC33FJ64GP804
44
43
42
41
40
39
38
37
36
35
12
13
14
15
16
17
18
19
20
21
3
30
29
28
27
26
25
24
23
4
5
7
8
9
10
11
1
232
31
6
22
33
34 PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
AN1/VREF-/CN3/RA1
AN0/VREF+/CN2/RA0
MCLR
TMS/PMA10/RA10
AVDD
AVSS
AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
TCK/PMA7/RA7
SCL1/RP8(1)/CN22/PMD4/RB8
INT0/RP7(1)/CN23/PMD5/RB7
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
VDD
TDI/PMA9/RA9
SOSCO/T1CK/CN0/RA4
VSS
RP21(1)/CN26/PMA3/RC5
RP20(1)/CN25/PMA4/RC4
RP19(1)/CN28/PMBE/RC3
AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
PGEC2/RP11(1)/CN15/PMD1/RB11
PGED2/RP10(1)/CN16/PMD2/RB10
VCAP
VSS
RP25(1)/CN19/PMA6/RC9
RP24(1)/CN20/PMA5/RC8
RP23(1)/CN17/PMA0/RC7
RP22(1)/CN18/PMA1/RC6
SDA1/RP9(1)/CN21/PMD3/RB9
AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
AN4/C1IN-/RP2(1)/CN6/RB2
AN5/C1IN+/RP3(1)/CN7/RB3
AN6/DAC1RM/RP16(1)/CN8/RC0
AN7/DAC1LM/RP17(1)/CN9/RC1
AN8/CVREF/RP18(1)/PMA2/CN10/RC2
SOSCI/RP4(1)/CN1/RB4
VDD
VSS
OSC1/CLKI/CN30/RA2
OSC2/CLKO/CN29/RA3
TDO/PMA8/RA8
dsPIC33FJ128GP804
Note 1: The RPx pins can be used by any remappable peripheral. See Table 1 in this section for the list of available peripherals.
2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.
= Pins are up to 5V tolerant
© 2007-2012 Microchip Technology Inc. DS70292G-page 7
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Pin Diagrams (Continued)
44-Pin QFN(2)
dsPIC33FJ64GP204
PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
AN1/VREF-/CN3/RA1
AN0/VREF+/CN2/RA0
MCLR
TMS/PMA10/RA10
AVDD
AVSS
AN9/RP15(1)/CN11/PMCS1/RB15
AN10/RTCC/RP14(1)/CN12/PMWR/RB14
TCK/PMA7/RA7
SCL1/RP8(1)/CN22/PMD4/RB8
INT0/RP7(1)/CN23/PMD5/RB7
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
VDD
TDI/PMA9/RA9
SOSCO/T1CK/CN0/RA4
VSS
RP21(1)/CN26/PMA3/RC5
RP20(1)/CN25/PMA4/RC4
RP19(1)/CN28/PMBE/RC3
AN12/RP12(1)/CN14/PMD0/RB12
PGEC2/RP11(1)/CN15/PMD1/RB11
PGED2/RP10(1)/CN16/PMD2/RB10
VCAP
VSS
RP25(1)/CN19/PMA6/RC9
RP24(1)/CN20/PMA5/RC8
RP23(1)/CN17/PMA0/RC7
RP22(1)/CN18/PMA1/RC6
SDA1/RP9(1)/CN21/PMD3/RB9
AN11/RP13(1)/CN13/PMRD/RB13
AN4/C1IN-/RP2(1)/CN6/RB2
AN5/C1IN+/RP3(1)/CN7/RB3
AN6/RP16(1)/CN8/RC0
AN7/RP17(1)/CN9/RC1
AN8/CVREF/RP18(1)/PMA2/CN10/RC2
SOSCI/RP4(1)/CN1/RB4
VDD
VSS
OSC1/CLKI/CN30/RA2
OSC2/CLKO/CN29/RA3
TDO/PMA8/RA8
dsPIC33FJ32GP304
dsPIC33FJ128GP204
Note 1: The RPx pins can be used by any remappable peripheral. See Ta b l e 1 in this section for the list of available peripherals.
2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.
= Pins are up to 5V tolerant
44
43
42
41
40
39
38
37
36
35
12
13
14
15
16
17
18
19
20
21
3
30
29
28
27
26
25
24
23
4
5
7
8
9
10
11
1
232
31
6
22
33
34
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 8 © 2007-2012 Microchip Technology Inc.
Pin Diagrams (Continued)
44-Pin TQFP
10
11
2
3
4
5
6
1
18
19
20
21
22
12
13
14
15
38
8
7
44
43
42
41
40
39
16
17
29
30
31
32
33
23
24
25
26
27
28
36
34
35
9
37
SCL1/RP8(1)/CN22/PMD4/RB8
INT0/RP7(1)/CN23/PMD5/RB7
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
VDD
TDI/PMA9/RA9
SOSCO/T1CK/CN0/RA4
VSS
RP21(1)/CN26/PMA3/RC5
RP20(1)/CN25/PMA4/RC4
RP19(1)/CN28/PMBE/RC3
PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
AN1/VREF-/CN3/RA1
AN0/VREF+/CN2/RA0
MCLR
TMS/PMA10/RA10
AVDD
AVSS
AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
PGEC2/RP11(1)/CN15/PMD1/RB11
PGED2/EMCD2/RP10(1)/CN16/PMD2/RB10
VCAP
VSS
RP25(1)/CN19/PMA6/RC9
RP24(1)/CN20/PMA5/RC8
RP23(1)/CN17/PMA0/RC7
RP22(1)/CN18/PMA1/RC6
SDA1/RP9(1)/CN21/PMD3/RB9
AN4/C1IN-/RP2(1)/CN6/RB2
AN5/C1IN+/RP3(1)/CN7/RB3
AN6/DAC1RM/RP16(1)/CN8/RC0
AN7/DAC1LM/RP17/(1)/CN9/RC1
AN8/CVREF/RP18(1)/PMA2/CN10/RC2
SOSCI/RP4(1)/CN1/RB4
VDD
VSS
OSC1/CLKI/CN30/RA2
OSC2/CLKO/CN29/RA3
TDO/PMA8/RA8
AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
TCK/PMA7/RA7
dsPIC33FJ64GP804
dsPIC33FJ128GP804
Note 1: The RPx pins can be used by any remappable peripheral. See Table 1 in this section for the list of available peripherals.
= Pins are up to 5V tolerant
© 2007-2012 Microchip Technology Inc. DS70292G-page 9
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Pin Diagrams (Continued)
44-Pin TQFP
10
11
2
3
4
5
6
1
18
19
20
21
22
12
13
14
15
38
8
7
44
43
42
41
40
39
16
17
29
30
31
32
33
23
24
25
26
27
28
36
34
35
9
37
SCL1/RP8(1)/CN22/PMD4/RB8
INT0/RP7(1)/CN23/PMD5/RB7
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5
VDD
TDI/PMA9/RA9
SOSCO/T1CK/CN0/RA4
VSS
RP21(1)/CN26/PMA3/RC5
RP20(1)/CN25/PMA4/RC4
RP19(1)/CN28/PMBE/RC3
PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
AN1/VREF-/CN3/RA1
AN0/VREF+/CN2/RA0
MCLR
TMS/PMA10/RA10
AVDD
AVSS
AN9/RP15(1)/CN11/PMCS1/RB15
AN10/RTCC/RP14(1)/CN12/PMWR/RB14
AN12/RP12(1)/CN14/PMD0/RB12
PGEC2/RP11(1)/CN15/PMD1/RB11
PGED2/EMCD2/RP10(1)/CN16/PMD2/RB10
VCAP
VSS
RP25(1)/CN19/PMA6/RC9
RP24(1)/CN20/PMA5/RC8
RP23(1)/CN17/PMA0/RC7
RP22(1)/CN18/PMA1/RC6
SDA1/RP9(1)/CN21/PMD3/RB9
AN4/C1IN-/RP2(1)/CN6/RB2
AN5/C1IN+/RP3(1)/CN7/RB3
AN6/RP16(1)/CN8/RC0
AN7/RP17(1)/CN9/RC1
AN8/CVREF/RP18(1)/PMA2/CN10/RC2
SOSCI/RP4(1)/CN1/RB4
VDD
VSS
OSC1/CLKI/CN30/RA2
OSC2/CLKO/CN29/RA3
TDO/PMA8/RA8
AN11/RP13(1)/CN13/PMRD/RB13
TCK/PMA7/RA7
dsPIC33FJ32GP304
dsPIC33FJ64GP204
dsPIC33FJ128GP204
Note 1: The RPx pins can be used by any remappable peripheral. See Ta b l e 1 in this section for the list of available peripherals.
= Pins are up to 5V tolerant
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 10 © 2007-2012 Microchip Technology Inc.
Table of Contents
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/X04 Product Families............................................. 2
1.0 Device Overview ........................................................................................................................................................................ 13
2.0 Guidelines for Getting Started with 16-bit Digital Signal Controllers .......................................................................................... 19
3.0 CPU............................................................................................................................................................................................ 23
4.0 Memory Organization ................................................................................................................................................................. 35
5.0 Flash Program Memory.............................................................................................................................................................. 71
6.0 Resets ....................................................................................................................................................................................... 77
7.0 Interrupt Controller ..................................................................................................................................................................... 87
8.0 Direct Memory Access (DMA) .................................................................................................................................................. 129
9.0 Oscillator Configuration ............................................................................................................................................................ 141
10.0 Power-Saving Features............................................................................................................................................................ 153
11.0 I/O Ports ................................................................................................................................................................................... 159
12.0 Timer1 ...................................................................................................................................................................................... 189
13.0 Timer2/3 and Timer4/5 Feature ............................................................................................................................................... 193
14.0 Input Capture............................................................................................................................................................................ 199
15.0 Output Compare ....................................................................................................................................................................... 203
16.0 Serial Peripheral Interface (SPI)............................................................................................................................................... 207
17.0 Inter-Integrated Circuit™ (I2C™) .............................................................................................................................................. 213
18.0 Universal Asynchronous Receiver Transmitter (UART) ........................................................................................................... 221
19.0 Enhanced CAN (ECAN™) Module ........................................................................................................................................... 227
20.0 Data Converter Interface (DCI) Module.................................................................................................................................... 255
21.0 10-bit/12-bit Analog-to-Digital Converter (ADC) ....................................................................................................................... 263
22.0 Audio Digital-to-Analog Converter (DAC) ................................................................................................................................. 277
23.0 Comparator Module.................................................................................................................................................................. 283
24.0 Real-Time Clock and Calendar (RTCC) .................................................................................................................................. 289
25.0 Programmable Cyclic Redundancy Check (CRC) Generator .................................................................................................. 301
26.0 Parallel Master Port (PMP)....................................................................................................................................................... 307
27.0 Special Features ...................................................................................................................................................................... 315
28.0 Instruction Set Summary .......................................................................................................................................................... 325
29.0 Development Support............................................................................................................................................................... 333
30.0 Electrical Characteristics .......................................................................................................................................................... 337
31.0 High Temperature Electrical Characteristics ............................................................................................................................ 391
32.0 DC and AC Device Characteristics Graphs.............................................................................................................................. 403
33.0 Packaging Information.............................................................................................................................................................. 407
Appendix A: Revision History............................................................................................................................................................. 417
Index .................................................................................................................................................................................................. 427
The Microchip Web Site ..................................................................................................................................................................... 431
Customer Change Notification Service .............................................................................................................................................. 431
Customer Support .............................................................................................................................................................................. 431
Reader Response .............................................................................................................................................................................. 432
Product Identification System............................................................................................................................................................. 433
© 2007-2012 Microchip Technology Inc. DS70292G-page 11
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
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If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
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Most Current Data Sheet
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http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
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When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 12 © 2007-2012 Microchip Technology Inc.
Referenced Sources
This device data sheet is based on the following
individual chapters of the “dsPIC33F/PIC24H Family
Reference Manual”. These documents should be
considered as the general reference for the operation
of a particular module or device feature.
• Section 1. “Introduction” (DS70197)
•Section 2. “CPU” (DS70204)
•Section 3. “Data Memory” (DS70202)
•Section 4. “Program Memory” (DS70203)
•Section 5. “Flash Programming” (DS70191)
•Section 8. “Reset” (DS70192)
•Section 9. “Watchdog Timer and Power-Saving Modes” (DS70196)
•Section 11. “Timers” (DS70205)
•Section 12. “Input Capture” (DS70198)
•Section 13. “Output Compare” (DS70209)
•Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
•Section 17. “UART” (DS70188)
•Section 18. “Serial Peripheral Interface (SPI)” (DS70206)
•Section 19. “Inter-Integrated Circuit™ (I2C™)” (DS70195)
•Section 23. “CodeGuard™ Security” (DS70199)
•Section 24. “Programming and Diagnostics” (DS70207)
•Section 25. “Device Configuration” (DS70194)
•Section 30. “I/O Ports with Peripheral Pin Select (PPS)” (DS70190)
•Section 32. “Interrupts (Part III)” (DS70214)
• Section 33. “Audio Digital-to-Analog Converter (DAC)” (DS70211)
• Section 34. “Comparator” (DS70212)
• Section 35. “Parallel Master Port (PMP)” (DS70299)
• Section 36. “Programmable Cyclic Redundancy Check (CRC)” (DS70298)
• Section 37. “Real-Time Clock and Calendar (RTCC)” (DS70301)
• Section 38. “Direct Memory Access (DMA) (Part III)” (DS70215)
• Section 39. “Oscillator (Part III)” (DS70216)
Note 1: To access the documents listed below,
browse to the documentation section of
the dsPIC33FJ64GP804 product page of
the Microchip web site
(www.microchip.com) or select a family
reference manual section from the
following list.
In addition to parameters, features, and
other documentation, the resulting page
provides links to the related family
reference manual sections.
© 2007-2012 Microchip Technology Inc. DS70292G-page 13
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
1.0 DEVICE OVERVIEW This document contains device specific information for
the dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 Digital Signal
Controller (DSC) Devices. The dsPIC33F devices
contain extensive Digital Signal Processor (DSP)
functionality with a high performance 16-bit
microcontroller (MCU) architecture.
Figure 1-1 shows a general block diagram of the
core and peripheral modules in the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 families of devices.
Table 1-1 lists the functions of the various pins
shown in the pinout diagrams.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to the “dsPIC33F/PIC24H Family
Reference Manual”. Please see the
Microchip web site (www.microchip.com)
for the latest dsPIC33F/PIC24H Family
Reference Manual sections.
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 14 © 2007-2012 Microchip Technology Inc.
FIGURE 1-1: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 BLOCK DIAGRAM
16
OSC1/CLKI
OSC2/CLKO
VDD, VSS
Timing
Generation
MCLR
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
Precision
Reference
Band Gap
FRC/LPRC
Oscillators
Regulator
Voltage
VCAP
IC1, 2, 7, 8 I2C1
PORTA
Note: Not all pins or features are implemented on all device pinout configurations. See pinout diagrams for the specific pins and features
present on each device.
Instruction
Decode and
Control
PCH PCL
16
Program Counter
16-bit ALU
23
23
24
23
Instruction Reg
PCU
16 x 16
W Register Array
ROM Latch
16
EA MUX
16
16
8
Interrupt
Controller
PSV and Table
Data Access
Control Block
Stack
Control
Logic
Loop
Control
Logic
Data Latch
Address
Latch
Address Latch
Program Memory
Data Latch
Literal Data
16 16
16
16
Data Latch
Address
Latch
16
X RAM Y RAM
16
Y Data Bus
X Data Bus
DSP Engine
Divide Support
16
Control Signals
to Various Blocks
ADC1
Timers
PORTB
Address Generator Units
1-5
CNx
UART1, 2 OC/
PWM1-4
DCI
Remappable
Pins
DMA
RAM
DMA
Controller PORTC
SPI1, 2
ECAN1
DAC1
Comparator
2 Ch.
RTCC
PMP/
EPSP
© 2007-2012 Microchip Technology Inc. DS70292G-page 15
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 1-1: PINOUT I/O DESCRIPTIONS
Pin Name Pin
Type
Buffer
Type PPS Description
AN0-AN12 I Analog Analog input channels.
CLKI
CLKO
I
O
ST/CMOS
—
No
No
External clock source input. Always associated with OSC1 pin
function.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
Always associated with OSC2 pin function.
OSC1
OSC2
I
I/O
ST/CMOS
—
No
No
Oscillator crystal input. ST buffer when configured in RC mode;
CMOS otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
SOSCI
SOSCO
I
O
ST/CMOS
—
No
No
32.768 kHz low-power oscillator crystal input; CMOS otherwise.
32.768 kHz low-power oscillator crystal output.
CN0-CN30 I ST No
No
Change notification inputs.
Can be software programmed for internal weak pull-ups on all inputs.
IC1-IC2
IC7-IC8
I
I
ST
ST
Yes
Yes
Capture inputs 1/2.
Capture inputs 7/8.
OCFA
OC1-OC4
I
O
ST
—
Yes
Yes
Compare Fault A input (for Compare Channels 1, 2, 3 and 4).
Compare outputs 1 through 4.
INT0
INT1
INT2
I
I
I
ST
ST
ST
No
Yes
Yes
External interrupt 0.
External interrupt 1.
External interrupt 2.
RA0-RA4
RA7-RA10
I/O
I/O
ST
ST
No
No
PORTA is a bidirectional I/O port.
PORTA is a bidirectional I/O port.
RB0-RB15 I/O ST No PORTB is a bidirectional I/O port.
RC0-RC9 I/O ST No PORTC is a bidirectional I/O port.
T1CK
T2CK
T3CK
T4CK
T5CK
I
I
I
I
I
ST
ST
ST
ST
ST
No
Yes
Yes
Yes
Yes
Timer1 external clock input.
Timer2 external clock input.
Timer3 external clock input.
Timer4 external clock input.
Timer5 external clock input.
U1CTS
U1RTS
U1RX
U1TX
I
O
I
O
ST
—
ST
—
Yes
Yes
Yes
Yes
UART1 clear to send.
UART1 ready to send.
UART1 receive.
UART1 transmit.
U2CTS
U2RTS
U2RX
U2TX
I
O
I
O
ST
—
ST
—
Yes
Yes
Yes
Yes
UART2 clear to send.
UART2 ready to send.
UART2 receive.
UART2 transmit.
SCK1
SDI1
SDO1
SS1
I/O
I
O
I/O
ST
ST
—
ST
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI1.
SPI1 data in.
SPI1 data out.
SPI1 slave synchronization or frame pulse I/O.
SCK2
SDI2
SDO2
SS2
I/O
I
O
I/O
ST
ST
—
ST
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI2.
SPI2 data in.
SPI2 data out.
SPI2 slave synchronization or frame pulse I/O.
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
TTL = TTL input buffer PPS = Peripheral Pin Select
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 16 © 2007-2012 Microchip Technology Inc.
SCL1
SDA1
ASCL1
ASDA1
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C1.
Synchronous serial data input/output for I2C1.
Alternate synchronous serial clock input/output for I2C1.
Alternate synchronous serial data input/output for I2C1.
TMS
TCK
TDI
TDO
I
I
I
O
ST
ST
ST
—
No
No
No
No
JTAG Test mode select pin.
JTAG test clock input pin.
JTAG test data input pin.
JTAG test data output pin.
C1RX
C1TX
I
O
ST
—
Yes
Yes
ECAN1 bus receive pin.
ECAN1 bus transmit pin.
RTCC O — No Real-Time Clock Alarm Output.
CVREF O ANA No Comparator Voltage Reference Output.
C1IN-
C1IN+
C1OUT
I
I
O
ANA
ANA
—
No
No
Yes
Comparator 1 Negative Input.
Comparator 1 Positive Input.
Comparator 1 Output.
C2IN-
C2IN+
C2OUT
I
I
O
ANA
ANA
—
No
No
Yes
Comparator 2 Negative Input.
Comparator 2 Positive Input.
Comparator 2 Output.
PMA0
PMA1
PMA2 -PMPA10
PMBE
PMCS1
PMD0-PMPD7
PMRD
PMWR
I/O
I/O
O
O
O
I/O
O
O
TTL/ST
TTL/ST
—
—
—
TTL/ST
—
—
No
No
No
No
No
No
No
No
Parallel Master Port Address Bit 0 Input (Buffered Slave modes) and
Output (Master modes).
Parallel Master Port Address Bit 1 Input (Buffered Slave modes) and
Output (Master modes).
Parallel Master Port Address (Demultiplexed Master Modes).
Parallel Master Port Byte Enable Strobe.
Parallel Master Port Chip Select 1 Strobe.
Parallel Master Port Data (Demultiplexed Master mode) or Address/
Data (Multiplexed Master modes).
Parallel Master Port Read Strobe.
Parallel Master Port Write Strobe.
DAC1RN
DAC1RP
DAC1RM
O
O
O
—
—
—
No
No
No
DAC1 Right Channel Negative Output.
DAC1 Right Channel Positive Output.
DAC1 Right Channel Middle Point Value (typically 1.65V).
DAC1LN
DAC1LP
DAC1LM
O
O
O
—
—
—
No
No
No
DAC1 Left Channel Negative Output.
DAC1 Left Channel Positive Output.
DAC1 Left Channel Middle Point Value (typically 1.65V).
COFS I/O ST Yes Data Converter Interface frame synchronization pin.
CSCK I/O ST Yes Data Converter Interface serial clock input/output pin.
CSDI I ST Yes Data Converter Interface serial data input pin
CSDO O — Yes Data Converter Interface serial data output pin.
PGED1
PGEC1
PGED2
PGEC2
PGED3
PGEC3
I/O
I
I/O
I
I/O
I
ST
ST
ST
ST
ST
ST
No
No
No
No
No
No
Data I/O pin for programming/debugging communication channel 1.
Clock input pin for programming/debugging communication channel 1.
Data I/O pin for programming/debugging communication channel 2.
Clock input pin for programming/debugging communication channel 2.
Data I/O pin for programming/debugging communication channel 3.
Clock input pin for programming/debugging communication channel 3.
MCLR I/P ST No Master Clear (Reset) input. This pin is an active-low Reset to the
device.
AVDD P P No Positive supply for analog modules. This pin must be connected at all
times.
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name Pin
Type
Buffer
Type PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
TTL = TTL input buffer PPS = Peripheral Pin Select
© 2007-2012 Microchip Technology Inc. DS70292G-page 17
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
AVSS P P No Ground reference for analog modules.
VDD P — No Positive supply for peripheral logic and I/O pins.
VCAP P — No CPU logic filter capacitor connection.
Vss P — No Ground reference for logic and I/O pins.
VREF+ I Analog No Analog voltage reference (high) input.
VREF- I Analog No Analog voltage reference (low) input.
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name Pin
Type
Buffer
Type PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
TTL = TTL input buffer PPS = Peripheral Pin Select
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 18 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 19
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
2.0 GUIDELINES FOR GETTING
STARTED WITH 16-BIT
DIGITAL SIGNAL
CONTROLLERS
2.1 Basic Connection Requirements
Getting started with the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 family of 16-bit Digital Signal Controllers (DSCs)
requires attention to a minimal set of device pin
connections before proceeding with development. The
following is a list of pin names, which must always be
connected:
• All VDD and VSS pins
(see Section 2.2 “Decoupling Capacitors”)
• All AVDD and AVSS pins (regardless if ADC module
is not used)
(see Section 2.2 “Decoupling Capacitors”)
•V
CAP
(see Section 2.3 “CPU Logic Filter Capacitor
Connection (VCAP)”)
•MCLR
pin
(see Section 2.4 “Master Clear (MCLR) Pin”)
• PGECx/PGEDx pins used for In-Circuit Serial
Programming™ (ICSP™) and debugging purposes
(see Section 2.5 “ICSP Pins”)
• OSC1 and OSC2 pins when external oscillator
source is used
(see Section 2.6 “External Oscillator Pins”)
Additionally, the following pins may be required:
•V
REF+/VREF- pins used when external voltage
reference for ADC module is implemented
2.2 Decoupling Capacitors
The use of decoupling capacitors on every pair of
power supply pins, such as VDD, VSS, AVDD and
AVSS is required.
Consider the following criteria when using decoupling
capacitors:
•Value and type of capacitor: Recommendation
of 0.1 µF (100 nF), 10-20V. This capacitor should
be a low-ESR and have resonance frequency in
the range of 20 MHz and higher. It is
recommended that ceramic capacitors be used.
•Placement on the printed circuit board: The
decoupling capacitors should be placed as close
to the pins as possible. It is recommended to
place the capacitors on the same side of the
board as the device. If space is constricted, the
capacitor can be placed on another layer on the
PCB using a via; however, ensure that the trace
length from the pin to the capacitor is within
one-quarter inch (6 mm) in length.
•Handling high frequency noise: If the board is
experiencing high frequency noise, upward of
tens of MHz, add a second ceramic-type capacitor
in parallel to the above described decoupling
capacitor. The value of the second capacitor can
be in the range of 0.01 µF to 0.001 µF. Place this
second capacitor next to the primary decoupling
capacitor. In high-speed circuit designs, consider
implementing a decade pair of capacitances as
close to the power and ground pins as possible.
For example, 0.1 µF in parallel with 0.001 µF.
•Maximizing performance: On the board layout
from the power supply circuit, run the power and
return traces to the decoupling capacitors first,
and then to the device pins. This ensures that the
decoupling capacitors are first in the power chain.
Equally important is to keep the trace length
between the capacitor and the power pins to a
minimum thereby reducing PCB track inductance.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to the “dsPIC33F/PIC24H
Family Reference Manual”, which is
available from the Microchip website
(www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: The AVDD and AVSS pins must be
connected independent of the ADC
voltage reference source.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 20 © 2007-2012 Microchip Technology Inc.
FIGURE 2-1: RECOMMENDED
MINIMUM CONNECTION
2.2.1 TANK CAPACITORS
On boards with power traces running longer than six
inches in length, it is suggested to use a tank capacitor
for integrated circuits including DSCs to supply a local
power source. The value of the tank capacitor should
be determined based on the trace resistance that con-
nects the power supply source to the device, and the
maximum current drawn by the device in the applica-
tion. In other words, select the tank capacitor so that it
meets the acceptable voltage sag at the device. Typical
values range from 4.7 µF to 47 µF.
2.3 CPU Logic Filter Capacitor
Connection (VCAP)
A low-ESR (< 5 Ohms) capacitor is required on the
VCAP pin, which is used to stabilize the voltage
regulator output voltage. The VCAP pin must not be
connected to VDD, and must have a capacitor between
4.7 µF and 10 µF, preferably surface mount connected
within one-eights inch of the VCAP pin connected to
ground. The type can be ceramic or tantalum. Refer to
Section 30.0 “Electrical Characteristics” for
additional information.
The placement of this capacitor should be close to the
VCAP. It is recommended that the trace length not
exceed one-quarter inch (6 mm). Refer to Section 27.2
“On-Chip Voltage Regulator” for details.
2.4 Master Clear (MCLR) Pin
The MCLR pin provides for two specific device
functions:
• Device Reset
• Device programming and debugging
During device programming and debugging, the
resistance and capacitance that can be added to the
pin must be considered. Device programmers and
debuggers drive the MCLR pin. Consequently,
specific voltage levels (VIH and VIL) and fast signal
transitions must not be adversely affected. Therefore,
specific values of R and C will need to be adjusted
based on the application and PCB requirements.
For example, as shown in Figure 2-2, it is
recommended that the capacitor C, be isolated from
the MCLR pin during programming and debugging
operations.
Place the components shown in Figure 2-2 within
one-quarter inch (6 mm) from the MCLR pin.
FIGURE 2-2: EXAMPLE OF MCLR PIN
CONNECTIONS
dsPIC33F
VDD
VSS
VDD
VSS
VSS
VDD
AVDD
AVSS
VDD
VSS
0.1 µF
Ceramic
0.1 µF
Ceramic
0.1 µF
Ceramic
0.1 µF
Ceramic
C
R
VDD
MCLR
0.1 µF
Ceramic
VCAP
L1(1)
R1
10 µF
Tantalum
Note 1: As an option, instead of a hard-wired connection, an
inductor (L1) can be substituted between VDD and
AVDD to improve ADC noise rejection. The inductor
impedance should be less than 1Ω and the inductor
capacity greater than 10 mA.
Where:
fFCNV
2
--------------=
f1
2πLC()
-----------------------=
L1
2πfC()
---------------------
⎝⎠
⎛⎞
2
=
(i.e., ADC conversion rate/2)
Note 1: R≤ 10 kΩ is recommended. A suggested
starting value is 10 kΩ. Ensure that the MCLR
pin VIH and VIL specifications are met.
2: R1 ≤ 470Ω will limit any current flowing into
MCLR from the external capacitor C, in the
event of MCLR pin breakdown, due to
Electrostatic Discharge (ESD) or Electrical
Overstress (EOS). Ensure that the MCLR pin
VIH and VIL specifications are met.
C
R1(2)
R(1)
VDD
MCLR
dsPIC33F
JP
© 2007-2012 Microchip Technology Inc. DS70292G-page 21
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
2.5 ICSP Pins
The PGECx and PGEDx pins are used for In-Circuit
Serial Programming™ (ICSP™) and debugging pur-
poses. It is recommended to keep the trace length
between the ICSP connector and the ICSP pins on the
device as short as possible. If the ICSP connector is
expected to experience an ESD event, a series resistor
is recommended, with the value in the range of a few
tens of Ohms, not to exceed 100 Ohms.
Pull-up resistors, series diodes, and capacitors on the
PGECx and PGEDx pins are not recommended as they
will interfere with the programmer/debugger communi-
cations to the device. If such discrete components are
an application requirement, they should be removed
from the circuit during programming and debugging.
Alternatively, refer to the AC/DC characteristics and
timing requirements information in the respective
device Flash programming specification for information
on capacitive loading limits and pin input voltage high
(VIH) and input low (VIL) requirements.
Ensure that the “Communication Channel Select” (i.e.,
PGECx/PGEDx pins) programmed into the device
matches the physical connections for the ICSP to
MPLAB® ICD 3 or MPLAB REAL ICE™.
For more information on ICD 3 and REAL ICE
connection requirements, refer to the following
documents that are available on the Microchip website.
•“Using MPLAB® ICD 3 In-Circuit Debugger”
(poster) DS51765
•“MPLAB® ICD 3 Design Advisory” DS51764
•“MPLAB® REAL ICE™ In-Circuit Emulator User’s
Guide” DS51616
•“Using MPLAB® REAL ICE™” (poster) DS51749
2.6 External Oscillator Pins
Many DSCs have options for at least two oscillators: a
high-frequency primary oscillator and a low-frequency
secondary oscillator (refer to Section 9.0 “Oscillator
Configuration” for details).
The oscillator circuit should be placed on the same
side of the board as the device. Also, place the
oscillator circuit close to the respective oscillator pins,
not exceeding one-half inch (12 mm) distance
between them. The load capacitors should be placed
next to the oscillator itself, on the same side of the
board. Use a grounded copper pour around the
oscillator circuit to isolate them from surrounding
circuits. The grounded copper pour should be routed
directly to the MCU ground. Do not run any signal
traces or power traces inside the ground pour. Also, if
using a two-sided board, avoid any traces on the
other side of the board where the crystal is placed. A
suggested layout is shown in Figure 2-3.
Recommendations for crystals and ceramic
resonators are provided in Table 2-1 and Ta bl e 2- 2,
respectively.
FIGURE 2-3: SUGGESTED PLACEMENT
OF THE OSCILLATOR
CIRCUIT
TABLE 2-1: CRYSTAL RECOMMENDATIONS
13
Main Oscillator
Guard Ring
Guard Trace
Secondary
Oscillator
14
15
16
17
18
19
20
Part
Number Vendor Freq. Load
Cap.
Package
Case
Frequency
Tolerance
Mounting
Type
Operating
Temperature
ECS-40-20-4DN ECS Inc. 4 MHz 20 pF HC49/US ±30 ppm TH -40°C to +85°C
ECS-80-18-4DN ECS Inc. 8 MHz 18 pF HC49/US ±30 ppm TH -40°C to +85°C
ECS-100-18-4-DN ECS Inc. 10 MHz 18 pF HC49/US ±30 ppm TH -40°C to +85°C
ECS-200-20-4DN ECS Inc. 20 MHz 20 pF HC49/US ±30 ppm TH -40°C to +85°C
ECS-40-20-5G3XDS-TR ECS Inc. 4 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C
ECS-80-20-5G3XDS-TR ECS Inc. 8 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C
ECS-100-20-5G3XDS-TR ECS Inc. 10 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C
ECS-200-20-5G3XDS-TR ECS Inc. 20 MHz 20 pF HC49/US ±30 ppm SM -40°C to 125°C
NX3225SA 20MHZ AT-W NDK 20 MHz 8 pF 3.2 mm x 2.5 mm ±50 ppm SM -40°C to 125°C
Legend: TH = Through Hole SM = Surface Mount
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 22 © 2007-2012 Microchip Technology Inc.
TABLE 2-2: RESONATOR RECOMMENDATIONS
2.7 Oscillator Value Conditions on
Device Start-up
If the PLL of the target device is enabled and
configured for the device start-up oscillator, the
maximum oscillator source frequency must be limited
to ≤8 MHz for start-up with the PLL enabled to comply
with device PLL start-up conditions. This means that if
the external oscillator frequency is outside this range,
the application must start-up in the FRC mode first. The
default PLL settings after a POR with an oscillator
frequency outside this range will violate the device
operating speed.
Once the device powers up, the application firmware
can initialize the PLL SFRs, CLKDIV and PLLDBF to a
suitable value, and then perform a clock switch to the
Oscillator + PLL clock source. Note that clock switching
must be enabled in the device Configuration word.
2.8 Configuration of Analog and
Digital Pins During ICSP
Operations
If MPLAB ICD 3 or REAL ICE is selected as a debug-
ger, it automatically initializes all of the analog-to-digital
input pins (ANx) as “digital” pins, by setting all bits in the
AD1PCFGL register.
The bits in this register that correspond to the
analog-to-digital pins that are initialized by MPLAB ICD
3 or REAL ICE, must not be cleared by the user
application firmware; otherwise, communication errors
will result between the debugger and the device.
If your application needs to use certain analog-to-digital
pins as analog input pins during the debug session, the
user application must clear the corresponding bits in
the AD1PCFGL register during initialization of the ADC
module.
When MPLAB ICD 3 or REAL ICE is used as a
programmer, the user application firmware must
correctly configure the AD1PCFGL register. Automatic
initialization of this register is only done during
debugger operation. Failure to correctly configure the
register(s) will result in all analog-to-digital pins being
recognized as analog input pins, resulting in the port
value being read as a logic ‘0’, which may affect user
application functionality.
2.9 Unused I/Os
Unused I/O pins should be configured as outputs and
driven to a logic-low state.
Alternatively, connect a 1k to 10k resistor between VSS
and the unused pin.
Part
Number Vendor Freq. Load
Cap.
Package
Case
Frequency
Tolerance
Mounting
Type
Operating
Temperature
FCR4.0M5T TDK Corp. 4 MHz N/A Radial ±0.5% TH -40°C to +85°C
FCR8.0M5 TDK Corp. 8 MHz N/A Radial ±0.5% TH -40°C to +85°C
HWZT-10.00MD TDK Corp. 10 MHz N/A Radial ±0.5% TH -40°C to +85°C
HWZT-20.00MD TDK Corp. 20 MHz N/A Radial ±0.5% TH -40°C to +85°C
Legend: TH = Through Hole
© 2007-2012 Microchip Technology Inc. DS70292G-page 23
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
3.0 CPU
3.1 Overview
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 CPU module has
a 16-bit (data) modified Harvard architecture with an
enhanced instruction set, including significant support
for DSP. The CPU has a 24-bit instruction word with a
variable length opcode field. The Program Counter
(PC) is 23 bits wide and addresses up to 4M x 24 bits
of user program memory space. The actual amount of
program memory implemented varies by device. A
single-cycle instruction prefetch mechanism is used to
help maintain throughput and provides predictable
execution. All instructions execute in a single cycle,
with the exception of instructions that change the
program flow, the double-word move (MOV.D)
instruction and the table instructions. Overhead-free
program loop constructs are supported using the DO
and REPEAT instructions, both of which are
interruptible at any time.
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices have
sixteen, 16-bit working registers in the programmer’s
model. Each of the working registers can serve as a
data, address or address offset register. The 16th
working register (W15) operates as a software Stack
Pointer (SP) for interrupts and calls.
There are two classes of instruction in the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices: MCU and
DSP. These two instruction classes are seamlessly
integrated into a single CPU. The instruction set
includes many addressing modes and is designed for
optimum C compiler efficiency. For most instructions,
the dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 is capable of
executing a data (or program data) memory read, a
working register (data) read, a data memory write and
a program (instruction) memory read per instruction
cycle. As a result, three parameter instructions can be
supported, allowing A + B = C operations to be
executed in a single cycle.
A block diagram of the CPU is shown in Figure 3-1, and
the programmer’s model for the dsPIC33FJ32GP302/
304, dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 is shown in Figure 3-2.
3.2 Data Addressing Overview
The data space can be addressed as 32K words or
64 Kbytes and is split into two blocks, referred to as X
and Y data memory. Each memory block has its own
independent Address Generation Unit (AGU). The
MCU class of instructions operates solely through the
X memory AGU, which accesses the entire memory
map as one linear data space. Certain DSP instructions
operate through the X and Y AGUs to support dual
operand reads, which splits the data address space
into two parts. The X and Y data space boundary is
device-specific.
Overhead-free circular buffers (Modulo Addressing
mode) are supported in both X and Y address spaces.
The Modulo Addressing removes the software
boundary checking overhead for DSP algorithms.
Furthermore, the X AGU circular addressing can be
used with any of the MCU class of instructions. The X
AGU also supports Bit-Reversed Addressing to greatly
simplify input or output data reordering for radix-2 FFT
algorithms.
The upper 32 Kbytes of the data space memory map
can optionally be mapped into program space at any
16K program word boundary defined by the 8-bit
Program Space Visibility Page (PSVPAG) register. The
program-to-data-space mapping feature lets any
instruction access program space as if it were data
space.
3.3 DSP Engine Overview
The DSP engine features a high-speed 17-bit by 17-bit
multiplier, a 40-bit ALU, two 40-bit saturating
accumulators and a 40-bit bidirectional barrel shifter.
The barrel shifter is capable of shifting a 40-bit value up
to 16 bits right or left, in a single cycle. The DSP
instructions operate seamlessly with all other
instructions and have been designed for optimal real-
time performance. The MAC instruction and other
associated instructions can concurrently fetch two data
operands from memory while multiplying two W
registers and accumulating and optionally saturating
the result in the same cycle. This instruction
functionality requires that the RAM data space be split
for these instructions and linear for all others. Data
space partitioning is achieved in a transparent and
flexible manner through dedicating certain working
registers to each address space.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 2. “CPU” (DS70204) of
the “dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 24 © 2007-2012 Microchip Technology Inc.
3.4 Special MCU Features
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 features a 17-bit
by 17-bit single-cycle multiplier that is shared by both
the MCU ALU and DSP engine. The multiplier can per-
form signed, unsigned and mixed-sign multiplication.
Using a 17-bit by 17-bit multiplier for 16-bit by 16-bit
multiplication not only allows you to perform mixed-sign
multiplication, it also achieves accurate results for
special operations, such as (-1.0) x (-1.0).
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 supports 16/16
and 32/16 divide operations, both fractional and inte-
ger. All divide instructions are iterative operations. They
must be executed within a REPEAT loop, resulting in a
total execution time of 19 instruction cycles. The divide
operation can be interrupted during any of those
19 cycles without loss of data.
A 40-bit barrel shifter is used to perform up to a 16-bit
left or right shift in a single cycle. The barrel shifter can
be used by both MCU and DSP instructions.
FIGURE 3-1: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 CPU CORE BLOCK DIAGRAM
Instruction
Decode and
Control
PCH PCL
Program Counter
16-bit ALU
24
23
Instruction Reg
PCU
16 x 16
W Register Array
ROM Latch
EA MUX
Interrupt
Controller
Stack
Control
Logic
Loop
Control
Logic
Data Latch
Address
Latch
Control Signals
to Various Blocks
Literal Data
16 16
16
To Peripheral Modules
Data Latch
Address
Latch
16
X RAM Y RAM
Address Generator Units
16
Y Data Bus
X Data Bus
DMA
Controller
DMA
RAM
DSP Engine
Divide Support
16
16
23
23
16
8
PSV and Table
Data Access
Control Block
16
16
16
16
Program Memory
Data Latch
Address Latch
© 2007-2012 Microchip Technology Inc. DS70292G-page 25
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 3-2: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 PROGRAMMER’S MODEL
PC22 PC0
7 0
D0D15
Program Counter
Data Table Page Address
STATUS Register
Working Registers
DSP Operand
Registers
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12/DSP Offset
W13/DSP Write Back
W14/Frame Pointer
W15/Stack Pointer
DSP Address
Registers
AD39 AD0AD31
DSP
Accumulators
ACCA
ACCB
7 0
Program Space Visibility Page Address
Z
0
OA OB SA SB
RCOUNT
15 0
REPEAT Loop Counter
DCOUNT
15 0
DO Loop Counter
DOSTART
22 0
DO Loop Start Address
IPL2 IPL1
SPLIM Stack Pointer Limit Register
AD15
SRL
PUSH.S Shadow
DO Shadow
OAB SAB
15 0
Core Configuration Register
Legend
CORCON
DA DC RA N
TBLPAG
PSVPAG
IPL0 OV
W0/WREG
SRH
DO Loop End Address
DOEND
22
C
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 26 © 2007-2012 Microchip Technology Inc.
3.5 CPU Resources
Many useful resources are provided on the main prod-
uct page of the Microchip web site for the devices listed
in this data sheet. This product page, which can be
accessed using this link, contains the latest updates
and additional information.
3.5.1 KEY RESOURCES
•Section 2. “CPU” (DS70204)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 27
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
3.6 CPU Control Registers
REGISTER 3-1: SR: CPU STATUS REGISTER
R-0 R-0 R/C-0 R/C-0 R-0 R/C-0 R -0 R/W-0
OA OB SA(1) SB(1) OAB SAB(4) DA DC
bit 15 bit 8
R/W-0(3) R/W-0(3) R/W-0(3) R-0 R/W-0 R/W-0 R/W-0 R/W-0
IPL<2:0>(2) RA N OV Z C
bit 7 bit 0
Legend:
C = Clear only bit R = Readable bit U = Unimplemented bit, read as ‘0’
S = Set only bit W = Writable bit -n = Value at POR
‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 OA: Accumulator A Overflow Status bit
1 = Accumulator A overflowed
0 = Accumulator A has not overflowed
bit 14 OB: Accumulator B Overflow Status bit
1 = Accumulator B overflowed
0 = Accumulator B has not overflowed
bit 13 SA: Accumulator A Saturation ‘Sticky’ Status bit(1)
1 = Accumulator A is saturated or has been saturated at some time
0 = Accumulator A is not saturated
bit 12 SB: Accumulator B Saturation ‘Sticky’ Status bit(1)
1 = Accumulator B is saturated or has been saturated at some time
0 = Accumulator B is not saturated
bit 11 OAB: OA || OB Combined Accumulator Overflow Status bit
1 = Accumulators A or B have overflowed
0 = Neither Accumulators A or B have overflowed
bit 10 SAB: SA || SB Combined Accumulator (Sticky) Status bit(4)
1 = Accumulators A or B are saturated or have been saturated at some time in the past
0 = Neither Accumulator A or B are saturated
bit 9 DA: DO Loop Active bit
1 = DO loop in progress
0 = DO loop not in progress
bit 8 DC: MCU ALU Half Carry/Borrow bit
1 = A carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized data)
of the result occurred
0 = No carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized
data) of the result occurred
Note 1: This bit can be read or cleared (not set).
2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
3: The IPL<2:0> Status bits are read only when the NSTDIS bit (INTCON1<15>) = 1.
4: This bit can be read or cleared (not set). Clearing this bit clears SA and SB.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 28 © 2007-2012 Microchip Technology Inc.
bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(2)
111 = CPU Interrupt Priority Level is 7 (15), user interrupts disabled
110 = CPU Interrupt Priority Level is 6 (14)
101 = CPU Interrupt Priority Level is 5 (13)
100 = CPU Interrupt Priority Level is 4 (12)
011 = CPU Interrupt Priority Level is 3 (11)
010 = CPU Interrupt Priority Level is 2 (10)
001 = CPU Interrupt Priority Level is 1 (9)
000 = CPU Interrupt Priority Level is 0 (8)
bit 4 RA: REPEAT Loop Active bit
1 = REPEAT loop in progress
0 = REPEAT loop not in progress
bit 3 N: MCU ALU Negative bit
1 = Result was negative
0 = Result was non-negative (zero or positive)
bit 2 OV: MCU ALU Overflow bit
This bit is used for signed arithmetic (two’s complement). It indicates an overflow of a magnitude that
causes the sign bit to change state.
1 = Overflow occurred for signed arithmetic (in this arithmetic operation)
0 = No overflow occurred
bit 1 Z: MCU ALU Zero bit
1 = An operation that affects the Z bit has set it at some time in the past
0 = The most recent operation that affects the Z bit has cleared it (i.e., a non-zero result)
bit 0 C: MCU ALU Carry/Borrow bit
1 = A carry-out from the Most Significant bit of the result occurred
0 = No carry-out from the Most Significant bit of the result occurred
REGISTER 3-1: SR: CPU STATUS REGISTER (CONTINUED)
Note 1: This bit can be read or cleared (not set).
2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
3: The IPL<2:0> Status bits are read only when the NSTDIS bit (INTCON1<15>) = 1.
4: This bit can be read or cleared (not set). Clearing this bit clears SA and SB.
© 2007-2012 Microchip Technology Inc. DS70292G-page 29
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 3-2: CORCON: CORE CONTROL REGISTER
U-0 U-0 U-0 R/W-0 R/W-0 R-0 R-0 R-0
— — —USEDT
(1) DL<2:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R/W-0 R/W-0 R/W-0
SATA SATB SATDW ACCSAT IPL3(2) PSV RND IF
bit 7 bit 0
Legend: C = Clear only bit
R = Readable bit W = Writable bit -n = Value at POR ‘1’ = Bit is set
0’ = Bit is cleared ‘x = Bit is unknown U = Unimplemented bit, read as ‘0’
bit 15-13 Unimplemented: Read as ‘0’
bit 12 US: DSP Multiply Unsigned/Signed Control bit
1 = DSP engine multiplies are unsigned
0 = DSP engine multiplies are signed
bit 11 EDT: Early DO Loop Termination Control bit(1)
1 = Terminate executing DO loop at end of current loop iteration
0 = No effect
bit 10-8 DL<2:0>: DO Loop Nesting Level Status bits
111 = 7 DO loops active
•
•
•
001 = 1 DO loop active
000 = 0 DO loops active
bit 7 SATA: ACCA Saturation Enable bit
1 = Accumulator A saturation enabled
0 = Accumulator A saturation disabled
bit 6 SATB: ACCB Saturation Enable bit
1 = Accumulator B saturation enabled
0 = Accumulator B saturation disabled
bit 5 SATDW: Data Space Write from DSP Engine Saturation Enable bit
1 = Data space write saturation enabled
0 = Data space write saturation disabled
bit 4 ACCSAT: Accumulator Saturation Mode Select bit
1 = 9.31 saturation (super saturation)
0 = 1.31 saturation (normal saturation)
bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)
1 = CPU interrupt priority level is greater than 7
0 = CPU interrupt priority level is 7 or less
bit 2 PSV: Program Space Visibility in Data Space Enable bit
1 = Program space visible in data space
0 = Program space not visible in data space
bit 1 RND: Rounding Mode Select bit
1 = Biased (conventional) rounding enabled
0 = Unbiased (convergent) rounding enabled
bit 0 IF: Integer or Fractional Multiplier Mode Select bit
1 = Integer mode enabled for DSP multiply ops
0 = Fractional mode enabled for DSP multiply ops
Note 1: This bit is always read as ‘0’.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU interrupt priority level.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 30 © 2007-2012 Microchip Technology Inc.
3.7 Arithmetic Logic Unit (ALU)
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 ALU is 16 bits
wide and is capable of addition, subtraction, bit shifts
and logic operations. Unless otherwise mentioned,
arithmetic operations are two’s complement in nature.
Depending on the operation, the ALU can affect the
values of the Carry (C), Zero (Z), Negative (N),
Overflow (OV) and Digit Carry (DC) Status bits in the
SR register. The C and DC Status bits operate as
Borrow and Digit Borrow bits, respectively, for
subtraction operations.
The ALU can perform 8-bit or 16-bit operations,
depending on the mode of the instruction that is used.
Data for the ALU operation can come from the W
register array or data memory, depending on the
addressing mode of the instruction. Likewise, output
data from the ALU can be written to the W register array
or a data memory location.
Refer to the “16-bit MCU and DSC Programmer’s Ref-
erence Manual” (DS70157) for information on the SR
bits affected by each instruction.
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 CPU incorpo-
rates hardware support for both multiplication and divi-
sion. This includes a dedicated hardware multiplier and
support hardware for 16-bit-divisor division.
3.7.1 MULTIPLIER
Using the high-speed 17-bit x 17-bit multiplier of the
DSP engine, the ALU supports unsigned, signed or
mixed-sign operation in several MCU multiplication
modes:
• 16-bit x 16-bit signed
• 16-bit x 16-bit unsigned
• 16-bit signed x 5-bit (literal) unsigned
• 16-bit unsigned x 16-bit unsigned
• 16-bit unsigned x 5-bit (literal) unsigned
• 16-bit unsigned x 16-bit signed
• 8-bit unsigned x 8-bit unsigned
3.7.2 DIVIDER
The divide block supports 32-bit/16-bit and 16-bit/16-bit
signed and unsigned integer divide operations with the
following data sizes:
1. 32-bit signed/16-bit signed divide
2. 32-bit unsigned/16-bit unsigned divide
3. 16-bit signed/16-bit signed divide
4. 16-bit unsigned/16-bit unsigned divide
The quotient for all divide instructions ends up in W0
and the remainder in W1. 16-bit signed and unsigned
DIV instructions can specify any W register for both
the 16-bit divisor (Wn) and any W register (aligned)
pair (W(m + 1):Wm) for the 32-bit dividend. The divide
algorithm takes one cycle per bit of divisor, so both
32-bit/16-bit and 16-bit/16-bit instructions take the
same number of cycles to execute.
3.8 DSP Engine
The DSP engine consists of a high-speed 17-bit x
17-bit multiplier, a barrel shifter and a 40-bit adder/
subtracter (with two target accumulators, round and
saturation logic).
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 is a single-cycle
instruction flow architecture; therefore, concurrent
operation of the DSP engine with MCU instruction flow
is not possible. However, some MCU ALU and DSP
engine resources can be used concurrently by the
same instruction (e.g., ED, EDAC).
The DSP engine can also perform inherent accumula-
tor-to-accumulator operations that require no additional
data. These instructions are ADD, SUB and NEG.
The DSP engine has options selected through bits in
the CPU Core Control register (CORCON), as listed
below:
• Fractional or integer DSP multiply (IF)
• Signed or unsigned DSP multiply (US)
• Conventional or convergent rounding (RND)
• Automatic saturation on/off for ACCA (SATA)
• Automatic saturation on/off for ACCB (SATB)
• Automatic saturation on/off for writes to data
memory (SATDW)
• Accumulator Saturation mode selection (ACC-
SAT)
A block diagram of the DSP engine is shown in
Figure 3-3.
TABLE 3-1: DSP INSTRUCTIONS
SUMMARY
Instruction Algebraic
Operation
ACC Write
Back
CLR A = 0 Yes
ED A = (x – y)2No
EDAC A = A + (x – y)2No
MAC A = A + (x • y) Yes
MAC A = A + x2 No
MOVSAC No change in A Yes
MPY A = x • y No
MPY A = x 2 No
MPY.N A = – x • y No
MSC A = A – x • y Yes
© 2007-2012 Microchip Technology Inc. DS70292G-page 31
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 3-3: DSP ENGINE BLOCK DIAGRAM
Zero Backfill
Sign-Extend
Barrel
Shifter
40-bit Accumulator A
40-bit Accumulator B Round
Logic
X Data Bus
To/From W Array
Adder
Saturate
Negate
32
32
33
16
16 16
16
40 40
40 40
S
a
t
u
r
a
t
e
Y Data Bus
40
Carry/Borrow Out
Carry/Borrow In
16
40
Multiplier/Scaler
17-bit
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 32 © 2007-2012 Microchip Technology Inc.
3.8.1 MULTIPLIER
The 17-bit x 17-bit multiplier is capable of signed or
unsigned operation and can multiplex its output using a
scaler to support either 1.31 fractional (Q31) or 32-bit
integer results. Unsigned operands are zero-extended
into the 17th bit of the multiplier input value. Signed
operands are sign-extended into the 17th bit of the
multiplier input value. The output of the 17-bit x 17-bit
multiplier/scaler is a 33-bit value that is sign-extended
to 40 bits. Integer data is inherently represented as a
signed two’s complement value, where the Most
Significant bit (MSb) is defined as a sign bit. The range
of an N-bit two’s complement integer is -2N-1 to 2N-1 – 1.
• For a 16-bit integer, the data range is -32768
(0x8000) to 32767 (0x7FFF) including 0.
• For a 32-bit integer, the data range is -
2,147,483,648 (0x8000 0000) to 2,147,483,647
(0x7FFF FFFF).
When the multiplier is configured for fractional
multiplication, the data is represented as a two’s
complement fraction, where the MSb is defined as a
sign bit and the radix point is implied to lie just after the
sign bit (QX format). The range of an N-bit two’s
complement fraction with this implied radix point is -1.0
to (1 – 21-N). For a 16-bit fraction, the Q15 data range
is -1.0 (0x8000) to 0.999969482 (0x7FFF) including 0
and has a precision of 3.01518x10-5. In Fractional
mode, the 16 x 16 multiply operation generates a 1.31
product that has a precision of 4.65661 x 10-10.
The same multiplier is used to support the MCU
multiply instructions, which include integer 16-bit
signed, unsigned and mixed sign multiply operations.
The MUL instruction can be directed to use byte or
word-sized operands. Byte operands direct a 16-bit
result, and word operands direct a 32-bit result to the
specified registers in the W array.
3.8.2 DATA ACCUMULATORS AND
ADDER/SUBTRACTER
The data accumulator consists of a 40-bit adder/
subtracter with automatic sign extension logic. It can
select one of two accumulators (A or B) as its pre-
accumulation source and post-accumulation
destination. For the ADD and LAC instructions, the data
to be accumulated or loaded can be optionally scaled
using the barrel shifter prior to accumulation.
3.8.2.1 Adder/Subtracter, Overflow and
Saturation
The adder/subtracter is a 40-bit adder with an optional
zero input into one side, and either true or complement
data into the other input.
• In the case of addition, the Carry/Borrow input is
active-high and the other input is true data (not
complemented).
• In the case of subtraction, the Carry/Borrow input
is active-low and the other input is complemented.
The adder/subtracter generates Overflow Status bits,
SA/SB and OA/OB, which are latched and reflected in
the STATUS register:
• Overflow from bit 39: this is a catastrophic
overflow in which the sign of the accumulator is
destroyed.
• Overflow into guard bits 32 through 39: this is a
recoverable overflow. This bit is set whenever all
the guard bits are not identical to each other.
The adder has an additional saturation block that
controls accumulator data saturation, if selected. It
uses the result of the adder, the Overflow Status bits
described previously and the SAT<A:B>
(CORCON<7:6>) and ACCSAT (CORCON<4>) mode
control bits to determine when and to what value to
saturate.
Six STATUS register bits support saturation and
overflow:
• OA: ACCA overflowed into guard bits
• OB: ACCB overflowed into guard bits
• SA: ACCA saturated (bit 31 overflow and
saturation)
or
ACCA overflowed into guard bits and saturated
(bit 39 overflow and saturation)
• SB: ACCB saturated (bit 31 overflow and
saturation)
or
ACCB overflowed into guard bits and saturated
(bit 39 overflow and saturation)
• OAB: Logical OR of OA and OB
• SAB: Logical OR of SA and SB
The OA and OB bits are modified each time data
passes through the adder/subtracter. When set, they
indicate that the most recent operation has overflowed
into the accumulator guard bits (bits 32 through 39).
The OA and OB bits can also optionally generate an
arithmetic warning trap when set and the
corresponding Overflow Trap Flag Enable bits (OVATE,
OVBTE) in the INTCON1 register are set (refer to
Section 7.0 “Interrupt Controller”). This allows the
user application to take immediate action, for example,
to correct the system gain.
The SA and SB bits are modified each time data
passes through the adder/subtracter, but can only be
cleared by the user application. When set, they indicate
that the accumulator has overflowed its maximum
range (bit 31 for 32-bit saturation or bit 39 for 40-bit sat-
uration) and is saturated (if saturation is enabled).
When saturation is not enabled, SA and SB default to
bit 39 overflow and thus indicate that a catastrophic
overflow has occurred. If the COVTE bit in the
INTCON1 register is set, the SA and SB bits generate
an arithmetic warning trap when saturation is disabled.
© 2007-2012 Microchip Technology Inc. DS70292G-page 33
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
The Overflow and Saturation Status bits can
optionally be viewed in the STATUS Register (SR) as
the logical OR of OA and OB (in bit OAB) and the
logical OR of SA and SB (in bit SAB). Programmers
can check one bit in the STATUS register to
determine if either accumulator has overflowed, or
one bit to determine if either accumulator has
saturated. This is useful for complex number
arithmetic, which typically uses both accumulators.
The device supports three Saturation and Overflow
modes:
• Bit 39 Overflow and Saturation:
When bit 39 overflow and saturation occurs, the
saturation logic loads the maximally positive 9.31
(0x7FFFFFFFFF) or maximally negative 9.31 value
(0x8000000000) into the target accumulator. The
SA or SB bit is set and remains set until cleared by
the user application. This condition is referred to as
‘super saturation’ and provides protection against
erroneous data or unexpected algorithm problems
(such as gain calculations).
• Bit 31 Overflow and Saturation:
When bit 31 overflow and saturation occurs, the
saturation logic then loads the maximally positive
1.31 value (0x007FFFFFFF) or maximally nega-
tive 1.31 value (0x0080000000) into the target
accumulator. The SA or SB bit is set and remains
set until cleared by the user application. When
this Saturation mode is in effect, the guard bits are
not used, so the OA, OB or OAB bits are never
set.
• Bit 39 Catastrophic Overflow:
The bit 39 Overflow Status bit from the adder is
used to set the SA or SB bit, which remains set
until cleared by the user application. No saturation
operation is performed, and the accumulator is
allowed to overflow, destroying its sign. If the
COVTE bit in the INTCON1 register is set, a
catastrophic overflow can initiate a trap exception.
3.8.3 ACCUMULATOR ‘WRITE BACK’
The MAC class of instructions (with the exception of
MPY, MPY.N, ED and EDAC) can optionally write a
rounded version of the high word (bits 31 through 16)
of the accumulator that is not targeted by the instruction
into data space memory. The write is performed across
the X bus into combined X and Y address space. The
following addressing modes are supported:
• W13, Register Direct:
The rounded contents of the non-target
accumulator are written into W13 as a
1.15 fraction.
• [W13] + = 2, Register Indirect with Post-Increment:
The rounded contents of the non-target accumu-
lator are written into the address pointed to by
W13 as a 1.15 fraction. W13 is then incremented
by 2 (for a word write).
3.8.3.1 Round Logic
The round logic is a combinational block that performs
a conventional (biased) or convergent (unbiased)
round function during an accumulator write (store). The
Round mode is determined by the state of the RND bit
in the CORCON register. It generates a 16-bit, 1.15
data value that is passed to the data space write
saturation logic. If rounding is not indicated by the
instruction, a truncated 1.15 data value is stored and
the least significant word is simply discarded.
Conventional rounding zero-extends bit 15 of the accu-
mulator and adds it to the ACCxH word (bits 16 through
31 of the accumulator).
• If the ACCxL word (bits 0 through 15 of the accu-
mulator) is between 0x8000 and 0xFFFF (0x8000
included), ACCxH is incremented.
• If ACCxL is between 0x0000 and 0x7FFF, ACCxH
is left unchanged.
A consequence of this algorithm is that over a succes-
sion of random rounding operations, the value tends to
be biased slightly positive.
Convergent (or unbiased) rounding operates in the
same manner as conventional rounding, except when
ACCxL equals 0x8000. In this case, the Least
Significant bit (bit 16 of the accumulator) of ACCxH is
examined:
• If it is ‘1’, ACCxH is incremented.
• If it is ‘0’, ACCxH is not modified.
Assuming that bit 16 is effectively random in nature,
this scheme removes any rounding bias that may
accumulate.
The SAC and SAC.R instructions store either a
truncated (SAC), or rounded (SAC.R) version of the
contents of the target accumulator to data memory via
the X bus, subject to data saturation (see
Section 3.8.3.2 “Data Space Write Saturation”). For
the MAC class of instructions, the accumulator write-
back operation functions in the same manner,
addressing combined MCU (X and Y) data space
though the X bus. For this class of instructions, the data
is always subject to rounding.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 34 © 2007-2012 Microchip Technology Inc.
3.8.3.2 Data Space Write Saturation
In addition to adder/subtracter saturation, writes to data
space can also be saturated, but without affecting the
contents of the source accumulator. The data space
write saturation logic block accepts a 16-bit, 1.15
fractional value from the round logic block as its input,
together with overflow status from the original source
(accumulator) and the 16-bit round adder. These inputs
are combined and used to select the appropriate 1.15
fractional value as output to write to data space
memory.
If the SATDW bit in the CORCON register is set, data
(after rounding or truncation) is tested for overflow and
adjusted accordingly:
• For input data greater than 0x007FFF, data
written to memory is forced to the maximum
positive 1.15 value, 0x7FFF.
• For input data less than 0xFF8000, data written to
memory is forced to the maximum negative 1.15
value, 0x8000.
The Most Significant bit of the source (bit 39) is used to
determine the sign of the operand being tested.
If the SATDW bit in the CORCON register is not set, the
input data is always passed through unmodified under
all conditions.
3.8.4 BARREL SHIFTER
The barrel shifter can perform up to 16-bit arithmetic or
logic right shifts, or up to 16-bit left shifts in a single
cycle. The source can be either of the two DSP
accumulators or the X bus (to support multi-bit shifts of
register or memory data).
The shifter requires a signed binary value to determine
both the magnitude (number of bits) and direction of the
shift operation. A positive value shifts the operand right.
A negative value shifts the operand left. A value of ‘0’
does not modify the operand.
The barrel shifter is 40 bits wide, thereby obtaining a
40-bit result for DSP shift operations and a 16-bit result
for MCU shift operations. Data from the X bus is
presented to the barrel shifter between bit positions 16
and 31 for right shifts, and between bit positions 0 and
16 for left shifts.
© 2007-2012 Microchip Technology Inc. DS70292G-page 35
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.0 MEMORY ORGANIZATION
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 architecture
features separate program and data memory spaces
and buses. This architecture also allows the direct
access of program memory from the data space during
code execution.
4.1 Program Address Space
The program address memory space of the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices is 4M
instructions. The space is addressable by a 24-bit
value derived either from the 23-bit Program Counter
(PC) during program execution, or from table operation
or data space remapping as described in Section 4.8
“Interfacing Program and Data Memory Spaces”.
User application access to the program memory space
is restricted to the lower half of the address range
(0x000000 to 0x7FFFFF). The exception is the use of
TBLRD/TBLWT operations, which use TBLPAG<7> to
permit access to the Configuration bits and Device ID
sections of the configuration memory space.
The memory map for the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices is shown in Figure 4-1.
FIGURE 4-1: PROGRAM MEMORY MAP FOR dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, AND dsPIC33FJ128GPX02/X04 DEVICES
Note: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 4. “Program
Memory” (DS70203) of the “dsPIC33F/
PIC24H Family Reference Manual”, which
is available from the Microchip website
(www.microchip.com).
Reset Address
0x000000
0x0000FE
0x000002
0x000100
Device Configuration
User Program
Flash Memory
(11264 instructions)
0x800000
0xF80000
Registers 0xF80017
0xF80018
DEVID (2)
0xFEFFFE
0xFF0000
0xFF0002
0xF7FFFE
Unimplemented
(Read ‘0’s)
GOTO Instruction
0x000004
Reserved
0x7FFFFE
Reserved
0x000200
0x0001FE
0x000104
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ32GP302/304
Configuration Memory Space User Memory Space
Note: Memory areas are not shown to scale.
Reset Address
Device Configuration
User Program
Flash Memory
(22016 instructions)
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO Instruction
Reserved
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ64GPX02/X04
Reset Address
Device Configuration
User Program
Flash Memory
(44032 instructions)
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO Instruction
Reserved
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ128GPX02/X04
0x0057FE
0x005800
0x015800
0x0157FE
0x00AC00
0x00ABFE
Reserved Reserved Reserved
0xFFFFFE
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 36 © 2007-2012 Microchip Technology Inc.
4.1.1 PROGRAM MEMORY
ORGANIZATION
The program memory space is organized in word-
addressable blocks. Although it is treated as 24 bits
wide, it is more appropriate to think of each address of
the program memory as a lower and upper word, with
the upper byte of the upper word being unimplemented.
The lower word always has an even address, while the
upper word has an odd address (Figure 4-2).
Program memory addresses are always word-aligned
on the lower word, and addresses are incremented or
decremented by two during code execution. This
arrangement provides compatibility with data memory
space addressing and makes data in the program
memory space accessible.
4.1.2 INTERRUPT AND TRAP VECTORS
All dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices reserve
the addresses between 0x00000 and 0x000200 for
hard-coded program execution vectors. A hardware
Reset vector is provided to redirect code execution
from the default value of the PC on device Reset to the
actual start of code. A GOTO instruction is programmed
by the user application at 0x000000, with the actual
address for the start of code at 0x000002.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices also have two
interrupt vector tables, located from 0x000004 to
0x0000FF and 0x000100 to 0x0001FF. These vector
tables allow each of the device interrupt sources to be
handled by separate Interrupt Service Routines (ISRs).
A more detailed discussion of the interrupt vector
tables is provided in Section 7.1 “Interrupt Vector
Table”.
FIGURE 4-2: PROGRAM MEMORY ORGANIZATION
0816
PC Address
0x000000
0x000002
0x000004
0x000006
23
00000000
00000000
00000000
00000000
Program Memory
‘Phantom’ Byte
(read as ‘0’)
least significant word
most significant word
Instruction Width
0x000001
0x000003
0x000005
0x000007
msw
Address (lsw Address)
© 2007-2012 Microchip Technology Inc. DS70292G-page 37
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.2 Data Address Space
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 CPU has a
separate 16-bit-wide data memory space. The data
space is accessed using separate Address Generation
Units (AGUs) for read and write operations. The data
memory maps is shown in Figure 4-4.
All Effective Addresses (EAs) in the data memory space
are 16 bits wide and point to bytes within the data space.
This arrangement gives a data space address range of
64 Kbytes or 32K words. The lower half of the data
memory space (that is, when EA<15> = 0) is used for
implemented memory addresses, while the upper half
(EA<15> = 1) is reserved for the Program Space
Visibility area (see Section 4.8.3 “Reading Data from
Program Memory Using Program Space Visibility”).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices implement up
to 16 Kbytes of data memory. Should an EA point to a
location outside of this area, an all-zero word or byte is
returned.
4.2.1 DATA SPACE WIDTH
The data memory space is organized in byte
addressable, 16-bit wide blocks. Data is aligned in data
memory and registers as 16-bit words, but all data
space EAs resolve to bytes. The Least Significant
Bytes (LSBs) of each word have even addresses, while
the Most Significant Bytes (MSBs) have odd
addresses.
4.2.2 DATA MEMORY ORGANIZATION
AND ALIGNMENT
To maintain backward compatibility with PIC® MCU
devices and improve data space memory usage
efficiency, the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 instruction set supports both word and byte
operations. As a consequence of byte accessibility, all
effective address calculations are internally scaled to
step through word-aligned memory. For example, the
core recognizes that Post-Modified Register Indirect
Addressing mode [Ws++] results in a value of Ws + 1
for byte operations and Ws + 2 for word operations.
A data byte read, reads the complete word that
contains the byte, using the LSB of any EA to
determine which byte to select. The selected byte is
placed onto the LSB of the data path. That is, data
memory and registers are organized as two parallel
byte-wide entities with shared (word) address decode
but separate write lines. Data byte writes only write to
the corresponding side of the array or register that
matches the byte address.
All word accesses must be aligned to an even address.
Misaligned word data fetches are not supported, so
care must be taken when mixing byte and word
operations, or translating from 8-bit MCU code. If a
misaligned read or write is attempted, an address error
trap is generated. If the error occurred on a read, the
instruction underway is completed. If the error occurred
on a write, the instruction is executed but the write does
not occur. In either case, a trap is then executed,
allowing the system and/or user application to examine
the machine state prior to execution of the address
Fault.
All byte loads into any W register are loaded into the
Least Significant Byte. The Most Significant Byte is not
modified.
A sign-extend instruction (SE) is provided to allow user
applications to translate 8-bit signed data to 16-bit
signed values. Alternatively, for 16-bit unsigned data,
user applications can clear the MSB of any W register
by executing a zero-extend (ZE) instruction on the
appropriate address.
4.2.3 SFR SPACE
The first 2 Kbytes of the Near Data Space, from 0x0000
to 0x07FF, is primarily occupied by Special Function
Registers (SFRs). These are used by the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 core and peripheral
modules for controlling the operation of the device.
SFRs are distributed among the modules that they
control, and are generally grouped together by module.
Much of the SFR space contains unused addresses;
these are read as ‘0’.
4.2.4 NEAR DATA SPACE
The 8 Kbyte area between 0x0000 and 0x1FFF is
referred to as the near data space. Locations in this
space are directly addressable via a 13-bit absolute
address field within all memory direct instructions.
Additionally, the whole data space is addressable using
MOV instructions, which support Memory Direct
Addressing mode with a 16-bit address field, or by
using Indirect Addressing mode using a working
register as an address pointer.
Note: The actual set of peripheral features and
interrupts varies by the device. Refer to
the corresponding device tables and
pinout diagrams for device-specific
information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 38 © 2007-2012 Microchip Technology Inc.
FIGURE 4-3: DATA MEMORY MAP FOR dsPIC33FJ32GP302/304 DEVICES WITH 4 KB RAM
0x0000
0x07FE
SFR Space
0xFFFE
X Data RAM (X)
16 bits
LSBMSB
0xFFFF
X Data
Optionally
Mapped
into Program
Memory
Unimplemented (X)
0x0800
2 Kbyte
SFR Space
0x1000
0x0FFE
0x17FE
0x1800
4 Kbyte
SRAM Space Y Data RAM (Y)
Near
Data
6 Kbyte
Space
0x13FE
0x1400
LSB
Address
MSB
Address
DMA RAM
0x0000
0x07FF
0x0801
0x1001
0x0FFF
0x17FF
0x1801
0x13FF
0x1401
0x8001 0x8000
© 2007-2012 Microchip Technology Inc. DS70292G-page 39
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 4-4: DATA MEMORY MAP FOR dsPIC33FJ128GP202/204 AND dsPIC33FJ64GP202/
204 DEVICES WITH 8 KB RAM
0x0000
0x07FE
0x17FE
0xFFFE
LSB
Address
16 bits
LSBMSB
MSB
Address
0x0001
0x07FF
0x17FF
0xFFFF
Optionally
Mapped
into Program
Memory
0x27FF 0x27FE
0x0801 0x0800
0x1801 0x1800
2 Kbyte
SFR Space
8 Kbyte
SRAM Space
0x8001 0x8000
0x28000x2801
0x1FFE
0x2000
0x1FFF
0x2001
Space
Data
Near
8 Kbyte
SFR
Space
X Data RAM (X)
X Data
Unimplemented (X)
DMA RAM
Y Data RAM (Y)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 40 © 2007-2012 Microchip Technology Inc.
FIGURE 4-5: DATA MEMORY MAP FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/
804 DEVICES WITH 16 KB RAM
0x0000
0x07FE
0x27FE
0xFFFE
LSB
Address
16 bits
LSBMSB
MSB
Address
0x0001
0x07FF
0x27FF
0xFFFF
Optionally
Mapped
into Program
Memory
0x47FF 0x47FE
0x0801 0x0800
0x2801 0x2800
Near
Data
2 Kbyte
SFR Space
16 Kbyte
SRAM Space
8 Kbyte
Space
0x8001 0x8000
0x48000x4801
0x3FFE
0x4000
0x3FFF
0x4001
0x1FFE
0x1FFF
SFR Space
X Data RAM (X)
X Data
Unimplemented (X)
DMA RAM
Y Data RAM (Y)
© 2007-2012 Microchip Technology Inc. DS70292G-page 41
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.2.5 X AND Y DATA SPACES
The core has two data spaces, X and Y. These data
spaces can be considered either separate (for some
DSP instructions), or as one unified linear address
range (for MCU instructions). The data spaces are
accessed using two Address Generation Units (AGUs)
and separate data paths. This feature allows certain
instructions to concurrently fetch two words from RAM,
thereby enabling efficient execution of DSP algorithms
such as Finite Impulse Response (FIR) filtering and
Fast Fourier Transform (FFT).
The X data space is used by all instructions and
supports all addressing modes. X data space has
separate read and write data buses. The X read data
bus is the read data path for all instructions that view
data space as combined X and Y address space. It is
also the X data prefetch path for the dual operand DSP
instructions (MAC class).
The Y data space is used in concert with the X data
space by the MAC class of instructions (CLR, ED,
EDAC, MAC, MOVSAC, MPY, MPY.N and MSC) to
provide two concurrent data read paths.
Both the X and Y data spaces support Modulo
Addressing mode for all instructions, subject to
addressing mode restrictions. Bit-Reversed Addressing
mode is only supported for writes to X data space.
All data memory writes, including in DSP instructions,
view data space as combined X and Y address space.
The boundary between the X and Y data spaces is
device-dependent and is not user-programmable.
All effective addresses are 16 bits wide and point to
bytes within the data space. Therefore, the data space
address range is 64 Kbytes, or 32K words, though the
implemented memory locations vary by device.
4.2.6 DMA RAM
Every dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 device contains
up to 2 Kbytes of dual ported DMA RAM located at
the end of Y data space, and is part of Y data space.
Memory locations in the DMA RAM space are
accessible simultaneously by the CPU and the DMA
controller module. DMA RAM is utilized by the DMA
controller to store data to be transferred to various
peripherals using DMA, as well as data transferred
from various peripherals using DMA. The DMA RAM
can be accessed by the DMA controller without
having to steal cycles from the CPU.
When the CPU and the DMA controller attempt to
concurrently write to the same DMA RAM location, the
hardware ensures that the CPU is given precedence in
accessing the DMA RAM location. Therefore, the DMA
RAM provides a reliable means of transferring DMA
data without ever having to stall the CPU.
4.3 Memory Resources
Many useful resources related to Memory Organization
are provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
4.3.1 KEY RESOURCES
•Section 2. “Program Memory” (DS70203)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: DMA RAM can be used for general
purpose data storage if the DMA function
is not required in an application.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 42 © 2007-2012 Microchip Technology Inc.
4.4 Special Function Register Maps
TABLE 4-1: CPU CORE REGISTERS MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
WREG0 0000 Working Register 0
0000
WREG1 0002 Working Register 1
0000
WREG2 0004 Working Register 2
0000
WREG3 0006 Working Register 3
0000
WREG4 0008 Working Register 4
0000
WREG5 000A Working Register 5
0000
WREG6 000C Working Register 6
0000
WREG7 000E Working Register 7
0000
WREG8 0010 Working Register 8
0000
WREG9 0012 Working Register 9
0000
WREG10 0014 Working Register 10
0000
WREG11 0016 Working Register 11
0000
WREG12 0018 Working Register 12
0000
WREG13 001A Working Register 13
0000
WREG14 001C Working Register 14
0000
WREG15 001E Working Register 15
0800
SPLIM 0020 Stack Pointer Limit Register
xxxx
ACCAL 0022 ACCAL
xxxx
ACCAH 0024 ACCAH
xxxx
ACCAU 0026 ACCA<39> ACCAU
xxxx
ACCBL 0028 ACCBL
xxxx
ACCBH 002A ACCBH
xxxx
ACCBU 002C ACCB<39> ACCBU
xxxx
PCL 002E Program Counter Low Word Register
xxxx
PCH 0030 — — — — — — — — Program Counter High Byte Register
0000
TBLPAG 0032 — — — — — — — — Table Page Address Pointer Register
0000
PSVPAG 0034 — — — — — — — — Program Memory Visibility Page Address Pointer Register
0000
RCOUNT 0036 Repeat Loop Counter Register
xxxx
DCOUNT
0038 DCOUNT<15:0> xxxx
DOSTARTL
003A DOSTARTL<15:1> 0 xxxx
DOSTARTH
003C
— — — — — — — — — —
DOSTARTH<5:0> 00xx
DOENDL
003E DOENDL<15:1> 0 xxxx
DOENDH
0040
— — — — — — — — — —
DOENDH 00xx
SR 0042 OA OB SA SB OAB SAB DA DC IPL<2:0> RA N OV Z C
0000
CORCON 0044 — — — US EDT DL<2:0>
SATA SATB SATDW ACCSAT IPL3 PSV RND IF
0020
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 43
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
MODCON 0046 XMODEN YMODEN
— —
BWM<3:0> YWM<3:0> XWM<3:0> 0000
XMODSRT 0048 XS<15:1> 0 xxxx
XMODEND 004A XE<15:1> 1 xxxx
YMODSRT 004C YS<15:1> 0 xxxx
YMODEND 004E YE<15:1> 1 xxxx
XBREV 0050 BREN XB<14:0> xxxx
DISICNT 0052 —
— Disable Interrupts Counter
Register
xxxx
TABLE 4-1: CPU CORE REGISTERS MAP (CONTINUED)
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 44 © 2007-2012 Microchip Technology Inc.
TABLE 4-2: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJ128GP202/802, dsPIC33FJ64GP202/802 AND dsPIC33FJ32GP302
SFR
Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE
———
CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE 0000
CNEN2 0062
—
CN30IE CN29IE
—
CN27IE
— —
CN24IE CN23IE CN22IE CN21IE
————
CN16IE 0000
CNPU1 0068 CN15PUE CN14PUE CN13PUE CN12PUE CN11PUE
———
CN7PUE CN6PUE CN5PUE CN4PUE CN3PUE CN2PUE CN1PUE CN0PUE 0000
CNPU2 006A
—
CN30PUE CN29PUE
—
CN27PUE
— —
CN24PUE CN23PUE CN22PUE CN21PUE
————
CN16PUE 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-3: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJ128GP204/804, dsPIC33FJ64GP204/804 AND dsPIC33FJ32GP304
SFR
Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE 0000
CNEN2 0062
—
CN30IE CN29IE CN28IE CN27IE CN26IE CN25IE CN24IE CN23IE CN22IE CN21IE CN20IE CN19IE CN18IE CN17IE CN16IE 0000
CNPU1 0068 CN15PUE CN14PUE CN13PUE CN12PUE CN11PUE CN10PUE CN9PUE CN8PUE CN7PUE CN6PUE CN5PUE CN4PUE CN3PUE CN2PUE CN1PUE CN0PUE 0000
CNPU2 006A
—
CN30PUE CN29PUE CN28PUE CN27PUE CN26PUE CN25PUE CN24PUE CN23PUE CN22PUE CN21PUE CN20PUE CN19PUE CN18PUE CN17PUE CN16PUE 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 45
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-4: INTERRUPT CONTROLLER REGISTER MAP
SFR
Name
SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
INTCON1 0080 NSTDIS OVAERR OVBERR COVAERR COVBERR OVATE OVBTE COVTE SFTACERR DIV0ERR DMACERR MATHERR ADDRERR STKERR OSCFAIL —0000
INTCON2 0082 ALTIVT DISI — — — — — — — — — — — INT2EP INT1EP INT0EP 0000
IFS0 0084 — DMA1IF AD1IF U1TXIF U1RXIF SPI1IF SPI1EIF T3IF T2IF OC2IF IC2IF DMA0IF T1IF OC1IF IC1IF INT0IF 0000
IFS1 0086 U2TXIF U2RXIF INT2IF T5IF T4IF OC4IF OC3IF DMA2IF IC8IF IC7IF — INT1IF CNIF CMIF MI2C1IF SI2C1IF 0000
IFS2 0088 — DMA4IF PMPIF — — — — — — — — DMA3IF C1IF(1) C1RXIF(1) SPI2IF SPI2EIF 0000
IFS3 008A — RTCIF DMA5IF DCIIF DCIEIF — — — — — — — — — — — 0000
IFS4 008C DAC1LIF(2) DAC1RIF(2) — — — — — — —C1TXIF
(1) DMA7IF DMA6IF CRCIF U2EIF U1EIF —0000
IEC0 0094 — DMA1IE AD1IE U1TXIE U1RXIE SPI1IE SPI1EIE T3IE T2IE OC2IE IC2IE DMA0IE T1IE OC1IE IC1IE INT0IE 0000
IEC1 0096 U2TXIE U2RXIE INT2IE T5IE T4IE OC4IE OC3IE DMA2IE IC8IE IC7IE — INT1IE CNIE CMIE MI2C1IE SI2C1IE 0000
IEC2 0098 — DMA4IE PMPIE — — — — — — — — DMA3IE C1IE(1) C1RXIE(1) SPI2IE SPI2EIE 0000
IEC3 009A — RTCIE DMA5IE DCIIE DCIEIE — — — — — — — — — — — 0000
IEC4 009C DAC1LIE(2) DAC1RIE(2) — — — — — — —C1TXIE
(1) DMA7IE DMA6IE CRCIE U2EIE U1EIE —0000
IPC0 00A4 — T1IP<2:0> —OC1IP<2:0> —IC1IP<2:0>— INT0IP<2:0> 4444
IPC1 00A6 — T2IP<2:0> —OC2IP<2:0> —IC2IP<2:0>— DMA0IP<2:0> 4444
IPC2 00A8 — U1RXIP<2:0> — SPI1IP<2:0> — SPI1EIP<2:0> — T3IP<2:0> 4444
IPC3 00AA — — — — — DMA1IP<2:0> — AD1IP<2:0> — U1TXIP<2:0> 0444
IPC4 00AC — CNIP<2:0> — CMIP<2:0> — MI2C1IP<2:0> — SI2C1IP<2:0> 4444
IPC5 00AE —IC8IP<2:0>—IC7IP<2:0> — — — — — INT1IP<2:0> 4404
IPC6 00B0 — T4IP<2:0> —OC4IP<2:0> —OC3IP<2:0>— DMA2IP<2:0> 4444
IPC7 00B2 — U2TXIP<2:0> — U2RXIP<2:0> — INT2IP<2:0> — T5IP<2:0> 4444
IPC8 00B4 — C1IP<2:0>(1) — C1RXIP<2:0>(1) — SPI2IP<2:0> — SPI2EIP<2:0> 4444
IPC9 00B6 — — — — — — — — — — — — — DMA3IP<2:0> 0004
IPC11 00BA — — — — — DMA4IP<2:0> — PMPIP<2:0> — — — — 0440
IPC14 00C0 — DCIEIP<2:0> — — — — — — — — — — — — 4000
IPC15 00C2 — — — — —RTCIP<2:0> — DMA5IP<2:0> — DCIIP<2:0> 0444
IPC16 00C4 — CRCIP<2:0> — U2EIP<2:0> — U1EIP<2:0> — — — — 4440
IPC17 00C6 — — — — — C1TXIP<2:0>(1) — DMA7IP<2:0> — DMA6IP<2:0> 0444
IPC19 00CA —DAC1LIP<2:0>
(2) — DAC1RIP<2:0>(2) — — — — — — — — 4400
INTTREG 00E0 — — — —ILR<3:0>> — VECNUM<6:0> 4444
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
Note 1: Interrupts disabled on devices without ECAN™ modules.
2: Interrupts disabled on devices without Audio DAC modules.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 46 © 2007-2012 Microchip Technology Inc.
TABLE 4-5: TIMER REGISTER MAP
SFR
Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
TMR1 0100 Timer1 Register
0000
PR1 0102 Period Register 1
FFFF
T1CON 0104 TON
—
TSIDL
——————
TGATE TCKPS<1:0>
—
TSYNC TCS
—
0000
TMR2 0106 Timer2 Register
0000
TMR3HLD 0108 Timer3 Holding Register (for 32-bit timer operations only)
xxxx
TMR3 010A Timer3 Register
0000
PR2 010C Period Register 2
FFFF
PR3 010E Period Register 3
FFFF
T2CON 0110 TON
—
TSIDL
——————
TGATE TCKPS<1:0> T32
—
TCS
—
0000
T3CON 0112 TON
—
TSIDL
——————
TGATE TCKPS<1:0>
— —
TCS
—
0000
TMR4 0114 Timer4 Register
0000
TMR5HLD 0116 Timer5 Holding Register (for 32-bit timer operations only)
xxxx
TMR5 0118 Timer5 Register
0000
PR4 011A Period Register 4
FFFF
PR5 011C Period Register 5
FFFF
T4CON 011E TON
—
TSIDL
——————
TGATE TCKPS<1:0> T32
—
TCS
—
0000
T5CON 0120 TON
—
TSIDL
——————
TGATE TCKPS<1:0>
— —
TCS
—
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-6: INPUT CAPTURE REGISTER MAP
SFR
Name
SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
IC1BUF 0140 Input 1 Capture Register
xxxx
IC1CON 0142
— —
ICSIDL
— — — — —
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC2BUF 0144 Input 2 Capture Register
xxxx
IC2CON 0146
— —
ICSIDL
— — — — —
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC7BUF 0158 Input 7 Capture Register
xxxx
IC7CON 015A
— —
ICSIDL
— — — — —
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC8BUF 015C Input 8Capture Register
xxxx
IC8CON 015E
— —
ICSIDL
— — — — —
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 47
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-7: OUTPUT COMPARE REGISTER MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
OC1RS 0180 Output Compare 1 Secondary Register
xxxx
OC1R 0182 Output Compare 1 Register
xxxx
OC1CON 0184
— —
OCSIDL
— — — — — — — —
OCFLT OCTSEL OCM<2:0>
0000
OC2RS 0186 Output Compare 2 Secondary Register
xxxx
OC2R 0188 Output Compare 2 Register
xxxx
OC2CON 018A
— —
OCSIDL
— — — — — — — —
OCFLT OCTSEL OCM<2:0>
0000
OC3RS 018C Output Compare 3 Secondary Register
xxxx
OC3R 018E Output Compare 3 Register
xxxx
OC3CON 0190
— —
OCSIDL
— — — — — — — —
OCFLT OCTSEL OCM<2:0>
0000
OC4RS 0192 Output Compare 4 Secondary Register
xxxx
OC4R 0194 Output Compare 4 Register
xxxx
OC4CON 0196
— —
OCSIDL
— — — — — — — —
OCFLT OCTSEL OCM<2:0>
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-8: I2C1 REGISTER MAP
SFR Name SFR
Addr Bit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 All
Resets
I2C1RCV 0200 — ——————— Receive Register
0000
I2C1TRN 0202 — ——————— Transmit Register
00FF
I2C1BRG 0204 — —————— Baud Rate Generator Register
0000
I2C1CON 0206 I2CEN — I2CSIDL SCLREL IPMIEN A10M DISSLW SMEN GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN
1000
I2C1STAT 0208 ACKSTAT TRSTAT ——— BCL GCSTAT ADD10 IWCOL I2COV D_A P S R_W RBF TBF
0000
I2C1ADD 020A — ————— Address Register
0000
I2C1MSK 020C — ————— Address Mask Register
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-9: UART1 REGISTER MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
U1MODE 0220 UARTEN — USIDL IREN RTSMD — UEN1 UEN0 WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL
0000
U1STA 0222 UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN UTXBF TRMT URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA
0110
U1TXREG 0224 — — — — — — — UTX8 UART Transmit Register
xxxx
U1RXREG 0226 — — — — — — — URX8 UART Received Register
0000
U1BRG 0228 Baud Rate Generator Prescaler
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 48 © 2007-2012 Microchip Technology Inc.
TABLE 4-10: UART2 REGISTER MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
U2MODE 0230 UARTEN — USIDL IREN RTSMD — UEN1 UEN0 WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL
0000
U2STA 0232 UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN UTXBF TRMT URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA
0110
U2TXREG 0234 — — — — — — — UTX8 UART Transmit Register
xxxx
U2RXREG 0236 — — — — — — — URX8 UART Receive Register
0000
U2BRG 0238 Baud Rate Generator Prescaler
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-11: SPI1 REGISTER MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
SPI1STAT 0240 SPIEN — SPISIDL ——————SPIROV———— SPITBF SPIRBF
0000
SPI1CON1 0242 — — — DISSCK DISSDO MODE16 SMP CKE SSEN CKP MSTEN SPRE<2:0> PPRE<1:0>
0000
SPI1CON2 0244 FRMEN SPIFSD FRMPOL ——————————— FRMDLY —
0000
SPI1BUF 0248 SPI1 Transmit and Receive Buffer Register
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-12: SPI2 REGISTER MAP
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
SPI2STAT 0260 SPIEN — SPISIDL ——————SPIROV———— SPITBF SPIRBF
0000
SPI2CON1 0262 — — — DISSCK DISSDO MODE16 SMP CKE SSEN CKP MSTEN SPRE<2:0> PPRE<1:0>
0000
SPI2CON2 0264 FRMEN SPIFSD FRMPOL ——————————— FRMDLY —
0000
SPI2BUF 0268 SPI2 Transmit and Receive Buffer Register
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 49
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-13: ADC1 REGISTER MAP FOR dsPIC33FJ64GP202/802, dsPIC33FJ128GP202/802 AND dsPIC33FJ32GP302
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
ADC1BUF0 0300 ADC Data Buffer 0 xxxx
AD1CON1 0320 ADON — ADSIDL ADDMABM — AD12B FORM<1:0> SSRC<2:0> — SIMSAM ASAM SAMP DONE 0000
AD1CON2 0322 VCFG<2:0> —— CSCNA CHPS<1:0> BUFS — SMPI<3:0> BUFM ALTS 0000
AD1CON3 0324 ADRC — — SAMC<4:0> ADCS<7:0> 0000
AD1CHS123 0326 — — — — — CH123NB<1:0> CH123SB — — — — — CH123NA<1:0> CH123SA 0000
AD1CHS0 0328 CH0NB —— CH0SB<4:0> CH0NA —— CH0SA<4:0> 0000
AD1PCFGL 032C — — — PCFG12 PCFG11 PCFG10 PCFG9 — — — PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000
AD1CSSL 0330 — — — CSS12 CSS11 CSS10 CSS9 — — — CSS5 CSS4 CSS3 CSS2 CSS1 CSS0 0000
AD1CON4 0332 — — — — — — — — — — — — — DMABL<2:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-14: ADC1 REGISTER MAP FOR dsPIC33FJ64GP204/804, dsPIC33FJ128GP204/804 AND dsPIC33FJ32GP304
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
ADC1BUF0 0300 ADC Data Buffer 0 xxxx
AD1CON1 0320 ADON —ADSIDLADDMABM — AD12B FORM<1:0> SSRC<2:0> — SIMSAM ASAM SAMP DONE 0000
AD1CON2 0322 VCFG<2:0> —— CSCNA CHPS<1:0> BUFS — SMPI<3:0> BUFM ALTS 0000
AD1CON3 0324 ADRC — — SAMC<4:0> ADCS<7:0> 0000
AD1CHS123 0326 — — — — — CH123NB<1:0> CH123SB — — — — — CH123NA<1:0> CH123SA 0000
AD1CHS0 0328 CH0NB —— CH0SB<4:0> CH0NA —— CH0SA<4:0> 0000
AD1PCFGL 032C — — — PCFG12 PCFG11 PCFG10 PCFG9 PCFG8 PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000
AD1CSSL 0330 — — — CSS12 CSS11 CSS10 CSS9 CSS8 CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0 0000
AD1CON4 0332 — — — — — — — — — — — — — DMABL<2:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-15: DAC1 REGISTER MAP FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/804
SFR Name SFR
Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
DAC1CON 03F0 DACEN — DACSIDL AMPON — — —FORM— DACFDIV<6:0> 0000
DAC1STAT 03F2 LOEN —LMVOEN—— LITYPE LFULL LEMPTY ROEN —RMVOEN——RITYPERFULLREMPTY
0000
DAC1DFLT 03F4 DAC1DFLT<15:0> 0000
DAC1RDAT 03F6 DAC1RDAT<15:0> 0000
DAC1LDAT 03F8 DAC1LDAT<15:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 50 © 2007-2012 Microchip Technology Inc.
TABLE 4-16: DMA REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
DMA0CON 0380 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA0REQ 0382 FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA0STA 0384 STA<15:0> 0000
DMA0STB 0386 STB<15:0> 0000
DMA0PAD 0388 PAD<15:0> 0000
DMA0CNT 038A — — — — — — CNT<9:0> 0000
DMA1CON 038C CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA1REQ 038E FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA1STA 0390 STA<15:0> 0000
DMA1STB 0392 STB<15:0> 0000
DMA1PAD 0394 PAD<15:0> 0000
DMA1CNT 0396 — — — — — — CNT<9:0> 0000
DMA2CON 0398 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA2REQ 039A FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA2STA 039C STA<15:0> 0000
DMA2STB 039E STB<15:0> 0000
DMA2PAD 03A0 PAD<15:0> 0000
DMA2CNT 03A2 — — — — — — CNT<9:0> 0000
DMA3CON 03A4 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA3REQ 03A6 FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA3STA 03A8 STA<15:0> 0000
DMA3STB 03AA STB<15:0> 0000
DMA3PAD 03AC PAD<15:0> 0000
DMA3CNT 03AE — — — — — — CNT<9:0> 0000
DMA4CON 03B0 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA4REQ 03B2 FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA4STA 03B4 STA<15:0> 0000
DMA4STB 03B6 STB<15:0> 0000
DMA4PAD 03B8 PAD<15:0> 0000
DMA4CNT 03BA — — — — — — CNT<9:0> 0000
DMA5CON 03BC CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA5REQ 03BE FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA5STA 03C0 STA<15:0> 0000
DMA5STB 03C2 STB<15:0> 0000
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 51
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DMA5PAD 03C4 PAD<15:0> 0000
DMA5CNT 03C6 — — — — — — CNT<9:0> 0000
DMA6CON 03C8 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA6REQ 03CA FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA6STA 03CC STA<15:0> 0000
DMA6STB 03CE STB<15:0> 0000
DMA6PAD 03D0 PAD<15:0> 0000
DMA6CNT 03D2 — — — — — — CNT<9:0> 0000
DMA7CON 03D4 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000
DMA7REQ 03D6 FORCE — — — — — — — — IRQSEL<6:0> 0000
DMA7STA 03D8 STA<15:0> 0000
DMA7STB 03DA STB<15:0> 0000
DMA7PAD 03DC PAD<15:0> 0000
DMA7CNT 03DE — — — — — — CNT<9:0> 0000
DMACS0 03E0 PWCOL7 PWCOL6 PWCOL5 PWCOL4 PWCOL3 PWCOL2 PWCOL1 PWCOL0 XWCOL7 XWCOL6 XWCOL5 XWCOL4 XWCOL3 XWCOL2 XWCOL1 XWCOL0 0000
DMACS1 03E2 — — — — LSTCH<3:0> PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0 0000
DSADR 03E4 DSADR<15:0> 0000
TABLE 4-16: DMA REGISTER MAP (CONTINUED)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 52 © 2007-2012 Microchip Technology Inc.
TABLE 4-17: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 OR 1 (FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/804)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
C1CTRL1 0400 —— CSIDL ABAT — REQOP<2:0> OPMODE<2:0> — CANCAP ——WIN0480
C1CTRL2 0402 — — — — — — — — — — — DNCNT<4:0> 0000
C1VEC 0404 — — — FILHIT<4:0> —ICODE<6:0>0000
C1FCTRL 0406 DMABS<2:0> — — — — — — — — FSA<4:0> 0000
C1FIFO 0408 —— FBP<5:0> —— FNRB<5:0> 0000
C1INTF 040A —— TXBO TXBP RXBP TXWAR RXWAR EWARN IVRIF WAKIF ERRIF — FIFOIF RBOVIF RBIF TBIF 0000
C1INTE 040C — — — — — — — — IVRIE WAKIE ERRIE — FIFOIE RBOVIE RBIE TBIE 0000
C1EC 040E TERRCNT<7:0> RERRCNT<7:0> 0000
C1CFG1 0410 — — — — — — — — SJW<1:0> BRP<5:0> 0000
C1CFG2 0412 —WAKFIL— — — SEG2PH<2:0> SEG2PHTS SAM SEG1PH<2:0> PRSEG<2:0> 0000
C1FEN1 0414
FLTEN15 FLTEN14 FLTEN13 FLTEN12 FLTEN11 FLTEN10 FLTEN9 FLTEN8 FLTEN7 FLTEN6 FLTEN5 FLTEN4 FLTEN3 FLTEN2 FLTEN1 FLTEN0
FFFF
C1FMSKSEL1 0418 F7MSK<1:0> F6MSK<1:0> F5MSK<1:0> F4MSK<1:0> F3MSK<1:0> F2MSK<1:0> F1MSK<1:0> F0MSK<1:0> 0000
C1FMSKSEL2 041A F15MSK<1:0> F14MSK<1:0> F13MSK<1:0> F12MSK<1:0> F11MSK<1:0> F10MSK<1:0> F9MSK<1:0> F8MSK<1:0> 0000
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-18: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 (FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/804)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
0400-
041E
See definition when WIN = x
C1RXFUL1 0420 RXFUL15 RXFUL14 RXFUL13 RXFUL12 RXFUL11 RXFUL10 RXFUL9 RXFUL8 RXFUL7 RXFUL6 RXFUL5 RXFUL4 RXFUL3 RXFUL2 RXFUL1 RXFUL0 0000
C1RXFUL2 0422 RXFUL31 RXFUL30 RXFUL29 RXFUL28 RXFUL27 RXFUL26 RXFUL25 RXFUL24 RXFUL23 RXFUL22 RXFUL21 RXFUL20 RXFUL19 RXFUL18 RXFUL17 RXFUL16 0000
C1RXOVF1 0428 RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF9 RXOVF8 RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0 0000
C1RXOVF2 042A RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24 RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16 0000
C1TR01CON 0430
TXEN1 TXABT1 TXLARB1 TXERR1 TXREQ1 RTREN1 TX1PRI<1:0> TXEN0 TXABT0 TXLARB0 TXERR0 TXREQ0 RTREN0 TX0PRI<1:0>
0000
C1TR23CON 0432
TXEN3 TXABT3 TXLARB3 TXERR3 TXREQ3 RTREN3 TX3PRI<1:0> TXEN2 TXABT2 TXLARB2 TXERR2 TXREQ2 RTREN2 TX2PRI<1:0>
0000
C1TR45CON 0434
TXEN5 TXABT5 TXLARB5 TXERR5 TXREQ5 RTREN5 TX5PRI<1:0> TXEN4 TXABT4 TXLARB4 TXERR4 TXREQ4 RTREN4 TX4PRI<1:0>
0000
C1TR67CON 0436
TXEN7 TXABT7 TXLARB7 TXERR7 TXREQ7 RTREN7 TX7PRI<1:0> TXEN6 TXABT6 TXLARB6 TXERR6 TXREQ6 RTREN6 TX6PRI<1:0>
0000
C1RXD 0440 Received Data Word xxxx
C1TXD 0442 Transmit Data Word xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 53
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-19: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1(FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/804)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
0400-
041E
See definition when WIN = x
C1BUFPNT1 0420 F3BP<3:0> F2BP<3:0> F1BP<3:0> F0BP<3:0> 0000
C1BUFPNT2 0422 F7BP<3:0> F6BP<3:0> F5BP<3:0> F4BP<3:0> 0000
C1BUFPNT3 0424 F11BP<3:0> F10BP<3:0> F9BP<3:0> F8BP<3:0> 0000
C1BUFPNT4 0426 F15BP<3:0> F14BP<3:0> F13BP<3:0> F12BP<3:0> 0000
C1RXM0SID 0430 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx
C1RXM0EID 0432 EID<15:8> EID<7:0> xxxx
C1RXM1SID 0434 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx
C1RXM1EID 0436 EID<15:8> EID<7:0> xxxx
C1RXM2SID 0438 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx
C1RXM2EID 043A EID<15:8> EID<7:0> xxxx
C1RXF0SID 0440 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF0EID 0442 EID<15:8> EID<7:0> xxxx
C1RXF1SID 0444 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF1EID 0446 EID<15:8> EID<7:0> xxxx
C1RXF2SID 0448 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF2EID 044A EID<15:8> EID<7:0> xxxx
C1RXF3SID 044C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF3EID 044E EID<15:8> EID<7:0> xxxx
C1RXF4SID 0450 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF4EID 0452 EID<15:8> EID<7:0> xxxx
C1RXF5SID 0454 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF5EID 0456 EID<15:8> EID<7:0> xxxx
C1RXF6SID 0458 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF6EID 045A EID<15:8> EID<7:0> xxxx
C1RXF7SID 045C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF7EID 045E EID<15:8> EID<7:0> xxxx
C1RXF8SID 0460 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF8EID 0462 EID<15:8> EID<7:0> xxxx
C1RXF9SID 0464 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF9EID 0466 EID<15:8> EID<7:0> xxxx
C1RXF10SID 0468 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF10EID 046A EID<15:8> EID<7:0> xxxx
C1RXF11SID 046C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 54 © 2007-2012 Microchip Technology Inc.
C1RXF11EID 046E EID<15:8> EID<7:0> xxxx
C1RXF12SID 0470 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF12EID 0472 EID<15:8> EID<7:0> xxxx
C1RXF13SID 0474 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF13EID 0476 EID<15:8> EID<7:0> xxxx
C1RXF14SID 0478 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF14EID 047A EID<15:8> EID<7:0> xxxx
C1RXF15SID 047C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx
C1RXF15EID 047E EID<15:8> EID<7:0> xxxx
TABLE 4-19: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1(FOR dsPIC33FJ128GP802/804 AND dsPIC33FJ64GP802/804) (CONTINUED)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-20: DCI REGISTER MAP
SFR Name Addr. Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset State
DCICON1 0280 DCIEN — DCISIDL — DLOOP CSCKD CSCKE COFSD UNFM CSDOM DJST — — —COFSM1COFSM00000 0000 0000 0000
DCICON2 0282 — — — —BLEN1BLEN0 —COFSG<3:0>— WS<3:0> 0000 0000 0000 0000
DCICON3 0284 — — — —BCG<11:0>0000 0000 0000 0000
DCISTAT 0286 — — — —SLOT3SLOT2SLOT1SLOT0— — — — ROV RFUL TUNF TMPTY 0000 0000 0000 0000
TSCON 0288 TSE15 TSE14 TSE13 TSE12 TSE11 TSE10 TSE9 TSE8 TSE7 TSE6 TSE5 TSE4 TSE3 TSE2 TSE1 TSE0 0000 0000 0000 0000
RSCON 028C RSE15 RSE14 RSE13 RSE12 RSE11 RSE10 RSE9 RSE8 RSE7 RSE6 RSE5 RSE4 RSE3 RSE2 RSE1 RSE0 0000 0000 0000 0000
RXBUF0 0290 Receive Buffer 0 Data Register 0000 0000 0000 0000
RXBUF1 0292 Receive Buffer 1 Data Register 0000 0000 0000 0000
RXBUF2 0294 Receive Buffer 2 Data Register 0000 0000 0000 0000
RXBUF3 0296 Receive Buffer 3 Data Register 0000 0000 0000 0000
TXBUF0 0298 Transmit Buffer 0 Data Register 0000 0000 0000 0000
TXBUF1 029A Transmit Buffer 1 Data Register 0000 0000 0000 0000
TXBUF2 029C Transmit Buffer 2 Data Register 0000 0000 0000 0000
TXBUF3 029E Transmit Buffer 3 Data Register 0000 0000 0000 0000
Legend: — = unimplemented, read as ‘0’.
© 2007-2012 Microchip Technology Inc. DS70292G-page 55
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-21: PERIPHERAL PIN SELECT INPUT REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
RPINR0 0680 — — — INT1R<4:0> — — — — — — — — 1F00
RPINR1 0682 — — — — — — — — — — —INT2R<4:0>
001F
RPINR3 0686 — — —T3CKR<4:0>— — —T2CKR<4:0>
1F1F
RPINR4 0688 — — —T5CKR<4:0>— — —T4CKR<4:0>
1F1F
RPINR7 068E — — — IC2R<4:0> — — — IC1R<4:0> 1F1F
RPINR10 0694 — — — IC8R<4:0> — — — IC7R<4:0> 1F1F
RPINR11 0696 — — — — — — — — — — —OCFAR<4:0>
001F
RPINR18 06A4 — — — U1CTSR<4:0> — — —U1RXR<4:0>
1F1F
RPINR19 06A6 — — — U2CTSR<4:0> — — —U2RXR<4:0>
1F1F
RPINR20 06A8 — — —SCK1R<4:0>— — —SDI1R<4:0>
1F1F
RPINR21 06AA — — — — — — — — — — — SS1R<4:0> 001F
RPINR22 06AC — — —SCK2R<4:0>— — —SDI2R<4:0>
1F1F
RPINR23 06AE — — — — — — — — — — — SS2R<4:0> 001F
RPINR24 06B0 — — — CSCKR<4:0> — — —CSDIR<4:0>
1F1F
RPINR25 06B2 — — — — — — — — — — —COFSR<4:0>
001F
RPINR26(1) 06B4 — — — — — — — — — — —C1RXR<4:0>
001F
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
Note 1: This register is present only for dsPIC33FJ128GP802/804 and dsPIC33FJ64GP802/804
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 56 © 2007-2012 Microchip Technology Inc.
TABLE 4-22: PERIPHERAL PIN SELECT OUTPUT REGISTER MAP FOR dsPIC33FJ128GP202/802, dsPIC33FJ64GP202/802 AND
dsPIC33FJ32GP302
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
RPOR0 06C0 — — — RP1R<4:0> ——— RP0R<4:0> 0000
RPOR1 06C2 — — — RP3R<4:0> ——— RP2R<4:0> 0000
RPOR2 06C4 — — — RP5R<4:0> ——— RP4R<4:0> 0000
RPOR3 06C6 — — — RP7R<4:0> ——— RP6R<4:0> 0000
RPOR4 06C8 — — — RP9R<4:0> ——— RP8R<4:0> 0000
RPOR5 06CA — — —RP11R<4:0>——— RP10R<4:0> 0000
RPOR6 06CC — — —RP13R<4:0>——— RP12R<4:0> 0000
RPOR7 06CE — — —RP15R<4:0>——— RP14R<4:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-23: PERIPHERAL PIN SELECT OUTPUT REGISTER MAP FOR dsPIC33FJ128GP204/804, dsPIC33FJ64GP204/804 AND
dsPIC33FJ32GP304
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
RPOR0 06C0 — — — RP1R<4:0> ——— RP0R<4:0> 0000
RPOR1 06C2 — — — RP3R<4:0> ——— RP2R<4:0> 0000
RPOR2 06C4 — — — RP5R<4:0> ——— RP4R<4:0> 0000
RPOR3 06C6 — — — RP7R<4:0> ——— RP6R<4:0> 0000
RPOR4 06C8 — — — RP9R<4:0> ——— RP8R<4:0> 0000
RPOR5 06CA — — —RP11R<4:0>——— RP10R<4:0> 0000
RPOR6 06CC — — —RP13R<4:0>——— RP12R<4:0> 0000
RPOR7 06CE — — —RP15R<4:0>——— RP14R<4:0> 0000
RPOR8 06D0 — — —RP17R<4:0>——— RP16R<4:0> 0000
RPOR9 06D2 — — —RP19R<4:0>——— RP18R<4:0> 0000
RPOR10 06D4 — — —RP21R<4:0>——— RP20R<4:0> 0000
RPOR11 06D6 — — —RP23R<4:0>——— RP22R<4:0> 0000
RPOR12 06D8 — — —RP25R<4:0>——— RP24R<4:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 57
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-24: PARALLEL MASTER/SLAVE PORT REGISTER MAP FOR dsPIC33FJ128GP202/802, dsPIC33FJ64GP202/802 AND
dsPIC33FJ32GP302
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
PMCON 0600 PMPEN — PSIDL ADRMUX<1:0> PTBEEN PTWREN PTRDEN CSF1 CSF0 ALP — CS1P BEP WRSP RDSP
0000
PMMODE 0602 BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0> WAITB<1:0> WAITM<3:0> WAITE<1:0>
0000
PMADDR 0604
ADDR15
CS1
ADDR<13:0>
0000
PMDOUT1 Parallel Port Data Out Register 1 (Buffers 0 and 1)
0000
PMDOUT2 0606 Parallel Port Data Out Register 2 (Buffers 2 and 3)
0000
PMDIN1 0608 Parallel Port Data In Register 1 (Buffers 0 and 1)
0000
PMPDIN2 060A Parallel Port Data In Register 2 (Buffers 2 and 3)
0000
PMAEN 060C —PTEN14— — — — — — — — — — — —
PTEN<1:0>
0000
PMSTAT 060E
IBF IBOV
— —
IB3F IB2F IB1F IB0F OBE OBUF
— —
OB3E OB2E OB1E OB0E
008F
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-25: PARALLEL MASTER/SLAVE PORT REGISTER MAP FOR dsPIC33FJ128GP204/804, dsPIC33FJ64GP204/804 AND
dsPIC33FJ32GP304
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
PMCON 0600 PMPEN — PSIDL ADRMUX<1:0> PTBEEN PTWREN PTRDEN CSF1 CSF0 ALP — CS1P BEP WRSP RDSP
0000
PMMODE 0602 BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0> WAITB<1:0> WAITM<3:0> WAITE<1:0>
0000
PMADDR 0604
ADDR15
CS1
ADDR<13:0>
0000
PMDOUT1 Parallel Port Data Out Register 1 (Buffers 0 and 1)
0000
PMDOUT2 0606 Parallel Port Data Out Register 2 (Buffers 2 and 3)
0000
PMDIN1 0608 Parallel Port Data In Register 1 (Buffers 0 and 1)
0000
PMPDIN2 060A Parallel Port Data In Register 2 (Buffers 2 and 3)
0000
PMAEN 060C —PTEN14— — —
PTEN<10:0>
0000
PMSTAT 060E
IBF IBOV
— —
IB3F IB2F IB1F IB0F OBE OBUF
— —
OB3E OB2E OB1E OB0E
008F
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 58 © 2007-2012 Microchip Technology Inc.
TABLE 4-26: REAL-TIME CLOCK AND CALENDAR REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
ALRMVAL 0620 Alarm Value Register Window based on APTR<1:0>
xxxx
ALCFGRPT 0622 ALRMEN CHIME AMASK<3:0> ALRMPTR<1:0> ARPT<7:-0>
0000
RTCVAL 0624 RTCC Value Register Window based on RTCPTR<1:0>
xxxx
RCFGCAL 0626 RTCEN — RTCWREN RTCSYNC HALFSEC RTCOE RTCPTR<1:0> CAL<7:0>
0000
PADCFG1 02FC — — — — — — — — — — — — — — RTSECSEL PMPTTL
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-27: CRC REGISTER MAP
File NameAddrBit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 All
Resets
CRCCON 0640 —— CSIDL VWORD<4:0> CRCFUL CRCMPT — CRCGO PLEN<3:0>
0000
CRCXOR 0642 X<15:0>
0000
CRCDAT 0644 CRC Data Input Register
0000
CRCWDAT 0646 CRC Result Register
0000
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-28: DUAL COMPARATOR REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
CMCON 0630 CMIDL — C2EVT C1EVT C2EN C1EN C2OUTEN C1OUTEN C2OUT C1OUT C2INV C1INV C2NEG C2POS C1NEG C1POS
0000
CVRCON 0632 — — — — — — — — CVREN CVROE CVRR CVRSS CVR<3:0>
0000
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-29: PORTA REGISTER MAP FOR dsPIC33FJ128GP202/802, dsPIC33FJ64GP202/802 AND dsPIC33FJ32GP302
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
TRISA
02C0 — — — — — — — — — — — TRISA4 TRISA3 TRISA2 TRISA1 TRISA0
001F
PORTA
02C2 — — — — —
— — — —
—— RA4 RA3 RA2 RA1 RA0
xxxx
LATA
02C4 — — — — — — — — — — — LATA4 LATA3 LATA2 LATA1 LATA0
xxxx
ODCA
02C6
— — — — — — — — — — — — — — — —
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 59
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 4-30: PORTA REGISTER MAP FOR dsPIC33FJ128GP204/804, dsPIC33FJ64GP204/804 AND dsPIC33FJ32GP304
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
TRISA
02C0 — — — — — TRISA10 TRISA9 TRISA8 TRISA7 —— TRISA4 TRISA3 TRISA2 TRISA1 TRISA0
079F
PORTA
02C2 — — — — — RA10 RA9 RA8 RA7 —— RA4 RA3 RA2 RA1 RA0
xxxx
LATA
02C4 — — — — — LATA10 LATA9 LATA8 LATA7 —— LATA4 LATA3 LATA2 LATA1 LATA0
xxxx
ODCA
02C6
— — — — —
ODCA10 ODCA9 ODCA8 ODCA7
— — — — — — —
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-31: PORTB REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
TRISB 02C8 TRISB15 TRISB14 TRISB13 TRISB12 TRISB11 TRISB10 TRISB9 TRISB8 TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0
FFFF
PORTB 02CA RB15 RB14 RB13 RB12 RB11 RB10 RB9 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0
xxxx
LATB 02CC LATB15 LATB14 LAT B13 LATB12 LATB11 LATB10 LATB9 LATB8 LATB7 LATB6 LATB5 LATB4 LATB3 LATB2 LATB1 LATB0
xxxx
ODCB 02CE
— — — —
ODCB11 ODCB10 ODCB9 ODCB8 ODCB7 ODCB6 ODCB5
— — — — —
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-32: PORTC REGISTER MAP FOR dsPIC33FJ128GP204/804, dsPIC33FJ64GP204/804 AND dsPIC33FJ32GP304
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
TRISC 02D0
— — — — — —
TRISC9 TRISC8 TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0
03FF
PORTC 02D2
— — — — — —
RC9 RC8 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0
xxxx
LATC 02D4
— — — — — —
LATC9 LATC8 LATC7 LATC6 LATC5 LATC4 LATC3 LATC2 LATC1 LATC0
xxxx
ODCC 02D6
— — — — — —
ODCC9 ODCC8 ODCC7 ODCC6 ODCC5 ODCC4 ODCC3
— — —
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 60 © 2007-2012 Microchip Technology Inc.
TABLE 4-33: SYSTEM CONTROL REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
RCON 0740 TRAPR IOPUWR — — — — CM VREGS EXTR SWR SWDTEN WDTO SLEEP IDLE BOR POR
xxxx
(1)
OSCCON
0742 — COSC<2:0> — NOSC<2:0> CLKLOCK IOLOCK LOCK —CF— LPOSCEN OSWEN 0300
(2)
CLKDIV
0744 ROI DOZE<2:0> DOZEN FRCDIV<2:0> PLLPOST<1:0> — PLLPRE<4:0> 3040
PLLFBD
0746 — — — — — — — PLLDIV<8:0> 0030
OSCTUN
0748 — — — — — — — — — — TUN<5:0> 0000
ACLKCON
074A —— SELACLK AOSCMD<1:0> APSTSCLR<2:0> ASRCSEL — — — — — — — 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
Note 1: RCON register Reset values dependent on type of Reset.
2: OSCCON register Reset values dependent on the FOSC Configuration bits and by type of Reset.
TABLE 4-34: SECURITY REGISTER MAP(1)
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
BSRAM 0750 — — — — — — — — — — — — — IW_BSR IR_BSR RL_BSR
0000
SSRAM 0752 — — — — — — — — — — — — — IW_ SSR
IR_SSR RL_SSR
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
Note 1: This register is not present in devices with 4K RAM and 32K Flash memory.
TABLE 4-35: NVM REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
NVMCON 0760 WR WREN WRERR ——————ERASE——NVMOP<3:0>
0000
NVMKEY 0766
———————— NVMKEY<7:0>
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-36: PMD REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All
Resets
PMD1 0770 T5MD T4MD T3MD T2MD T1MD —— DCIMD I2C1MD U2MD U1MD SPI2MD SPI1MD —C1MD AD1MD 0000
PMD2 0772 IC8MD IC7MD — — — —IC2MDIC1MD— — — — OC4MD OC3MD OC2MD OC1MD 0000
PMD3 0774 — — — — — CMPMD RTCCMD PMPMD CRCMD DAC1MD — — — — — — 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2007-2012 Microchip Technology Inc. DS70292G-page 61
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.4.1 SOFTWARE STACK
In addition to its use as a working register, the W15
register in the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices is also used as a software Stack Pointer.
The Stack Pointer always points to the first available
free word and grows from lower to higher addresses. It
pre-decrements for stack pops and post-increments for
stack pushes, as shown in Figure 4-6. For a PC push
during any CALL instruction, the MSb of the PC is zero-
extended before the push, ensuring that the MSb is
always clear.
The Stack Pointer Limit register (SPLIM) associated
with the Stack Pointer sets an upper address boundary
for the stack. SPLIM is uninitialized at Reset. As is the
case for the Stack Pointer, SPLIM<0> is forced to ‘0’
because all stack operations must be word aligned.
Whenever an EA is generated using W15 as a source
or destination pointer, the resulting address is
compared with the value in SPLIM. If the contents of
the Stack Pointer (W15) and the SPLIM register are
equal and a push operation is performed, a stack error
trap does not occur. The stack error trap occurs on a
subsequent push operation. For example, to cause a
stack error trap when the stack grows beyond address
0x2000 in RAM, initialize the SPLIM with the value
0x1FFE.
Similarly, a Stack Pointer underflow (stack error) trap is
generated when the Stack Pointer address is found to
be less than 0x0800. This prevents the stack from
interfering with the Special Function Register (SFR)
space.
A write to the SPLIM register should not be immediately
followed by an indirect read operation using W15.
FIGURE 4-6: CALL STACK FRAME
4.4.2 DATA RAM PROTECTION FEATURE
The dsPIC33F product family supports Data RAM
protection features that enable segments of RAM to be
protected when used in conjunction with Boot and
Secure Code Segment Security. BSRAM (Secure RAM
segment for BS) is accessible only from the Boot
Segment Flash code when enabled. SSRAM (Secure
RAM segment for RAM) is accessible only from the
Secure Segment Flash code when enabled. See
Table 4-1 for an overview of the BSRAM and SSRAM
SFRs.
4.5 Instruction Addressing Modes
The addressing modes shown in Table 4-37 form the
basis of the addressing modes optimized to support the
specific features of individual instructions. The
addressing modes provided in the MAC class of
instructions differ from those in the other instruction
types.
4.5.1 FILE REGISTER INSTRUCTIONS
Most file register instructions use a 13-bit address field
(f) to directly address data present in the first 8192
bytes of data memory (near data space). Most file
register instructions employ a working register, W0,
which is denoted as WREG in these instructions. The
destination is typically either the same file register or
WREG (with the exception of the MUL instruction),
which writes the result to a register or register pair. The
MOV instruction allows additional flexibility and can
access the entire data space.
4.5.2 MCU INSTRUCTIONS
The three-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where:
Operand 1 is always a working register (that is, the
addressing mode can only be register direct), which is
referred to as Wb.
Operand 2 can be a W register, fetched from data
memory, or a 5-bit literal. The result location can be
either a W register or a data memory location. The fol-
lowing addressing modes are supported by MCU
instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-Modified
• Register Indirect Pre-Modified
• 5-bit or 10-bit Literal
Note: A PC push during exception processing
concatenates the SRL register to the MSb
of the PC prior to the push.
<Free Word>
PC<15:0>
000000000
015
W15 (before CALL)
W15 (after CALL)
Stack Grows Toward
Higher Address
0x0000
PC<22:16>
POP : [--W15]
PUSH : [W15++]
Note: Not all instructions support all the
addressing modes given above. Individual
instructions can support different subsets
of these addressing modes.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 62 © 2007-2012 Microchip Technology Inc.
TABLE 4-37: FUNDAMENTAL ADDRESSING MODES SUPPORTED
4.5.3 MOVE AND ACCUMULATOR
INSTRUCTIONS
Move instructions and the DSP accumulator class of
instructions provide a greater degree of addressing
flexibility than other instructions. In addition to the
addressing modes supported by most MCU
instructions, move and accumulator instructions also
support Register Indirect with Register Offset
Addressing mode, also referred to as Register Indexed
mode.
In summary, the following addressing modes are
supported by move and accumulator instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-modified
• Register Indirect Pre-modified
• Register Indirect with Register Offset (Indexed)
• Register Indirect with Literal Offset
• 8-bit Literal
• 16-bit Literal
4.5.4 MAC INSTRUCTIONS
The dual source operand DSP instructions (CLR, ED,
EDAC, MAC, MPY, MPY.N, MOVSAC and MSC), also referred
to as MAC instructions, use a simplified set of addressing
modes to allow the user application to effectively
manipulate the data pointers through register indirect
tables.
The two-source operand prefetch registers must be
members of the set {W8, W9, W10, W11}. For data
reads, W8 and W9 are always directed to the X RAGU,
and W10 and W11 are always directed to the Y AGU.
The effective addresses generated (before and after
modification) must, therefore, be valid addresses within
X data space for W8 and W9 and Y data space for W10
and W11.
In summary, the following addressing modes are
supported by the MAC class of instructions:
• Register Indirect
• Register Indirect Post-Modified by 2
• Register Indirect Post-Modified by 4
• Register Indirect Post-Modified by 6
• Register Indirect with Register Offset (Indexed)
4.5.5 OTHER INSTRUCTIONS
Besides the addressing modes outlined previously, some
instructions use literal constants of various sizes. For
example, BRA (branch) instructions use 16-bit signed lit-
erals to specify the branch destination directly, whereas
the DISI instruction uses a 14-bit unsigned literal field. In
some instructions, such as ADD Acc, the source of an
operand or result is implied by the opcode itself. Certain
operations, such as NOP, do not have any operands.
Addressing Mode Description
File Register Direct The address of the file register is specified explicitly.
Register Direct The contents of a register are accessed directly.
Register Indirect The contents of Wn forms the Effective Address (EA).
Register Indirect Post-Modified The contents of Wn forms the EA. Wn is post-modified (incremented
or decremented) by a constant value.
Register Indirect Pre-Modified Wn is pre-modified (incremented or decremented) by a signed constant value
to form the EA.
Register Indirect with Register Offset
(Register Indexed)
The sum of Wn and Wb forms the EA.
Register Indirect with Literal Offset The sum of Wn and a literal forms the EA.
Note: For the MOV instructions, the addressing
mode specified in the instruction can differ
for the source and destination EA.
However, the 4-bit Wb (Register Offset)
field is shared by both source and
destination (but typically only used by
one).
Note: Not all instructions support all the address-
ing modes given above. Individual instruc-
tions may support different subsets of
these addressing modes.
Note: Register Indirect with Register Offset
Addressing mode is available only for W9
(in X space) and W11 (in Y space).
© 2007-2012 Microchip Technology Inc. DS70292G-page 63
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.6 Modulo Addressing
Modulo Addressing mode is a method of providing an
automated means to support circular data buffers using
hardware. The objective is to remove the need for
software to perform data address boundary checks
when executing tightly looped code, as is typical in
many DSP algorithms.
Modulo Addressing can operate in either data or program
space (since the data pointer mechanism is essentially
the same for both). One circular buffer can be supported
in each of the X (which also provides the pointers into
program space) and Y data spaces. Modulo Addressing
can operate on any W register pointer. However, it is not
advisable to use W14 or W15 for Modulo Addressing
since these two registers are used as the Stack Frame
Pointer and Stack Pointer, respectively.
In general, any particular circular buffer can be config-
ured to operate in only one direction as there are
certain restrictions on the buffer start address (for incre-
menting buffers), or end address (for decrementing
buffers), based upon the direction of the buffer.
The only exception to the usage restrictions is for
buffers that have a power-of-two length. As these
buffers satisfy the start and end address criteria, they
can operate in a bidirectional mode (that is, address
boundary checks are performed on both the lower and
upper address boundaries).
4.6.1 START AND END ADDRESS
The Modulo Addressing scheme requires that a
starting and ending address be specified and loaded
into the 16-bit Modulo Buffer Address registers:
XMODSRT, XMODEND, YMODSRT and YMODEND
(see Tab le 4 -1).
The length of a circular buffer is not directly specified. It
is determined by the difference between the
corresponding start and end addresses. The maximum
possible length of the circular buffer is 32K words
(64 Kbytes).
4.6.2 W ADDRESS REGISTER
SELECTION
The Modulo and Bit-Reversed Addressing Control
register, MODCON<15:0>, contains enable flags as well
as a W register field to specify the W Address registers.
The XWM and YWM fields select the registers that
operate with Modulo Addressing:
•If XWM = 15, X RAGU and X WAGU Modulo
Addressing is disabled.
•If YWM = 15, Y AGU Modulo Addressing is
disabled.
The X Address Space Pointer W register (XWM), to
which Modulo Addressing is to be applied, is stored in
MODCON<3:0> (see Table 4-1). Modulo Addressing is
enabled for X data space when XWM is set to any value
other than ‘15’ and the XMODEN bit is set at
MODCON<15>.
The Y Address Space Pointer W register (YWM) to
which Modulo Addressing is to be applied is stored in
MODCON<7:4>. Modulo Addressing is enabled for Y
data space when YWM is set to any value other than
‘15’ and the YMODEN bit is set at MODCON<14>.
FIGURE 4-7: MODULO ADDRESSING OPERATION EXAMPLE
Note: Y space Modulo Addressing EA
calculations assume word-sized data (LSb
of every EA is always clear).
0x1100
0x1163
Start Addr = 0x1100
End Addr = 0x1163
Length = 0x0032 words
Byte
Address
MOV #0x1100, W0
MOV W0, XMODSRT ;set modulo start address
MOV #0x1163, W0
MOV W0, MODEND ;set modulo end address
MOV #0x8001, W0
MOV W0, MODCON ;enable W1, X AGU for modulo
MOV #0x0000, W0 ;W0 holds buffer fill value
MOV #0x1110, W1 ;point W1 to buffer
DO AGAIN, #0x31 ;fill the 50 buffer locations
MOV W0, [W1++] ;fill the next location
AGAIN: INC W0, W0 ;increment the fill value
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 64 © 2007-2012 Microchip Technology Inc.
4.6.3 MODULO ADDRESSING
APPLICABILITY
Modulo Addressing can be applied to the Effective
Address (EA) calculation associated with any W
register. Address boundaries check for addresses
equal to:
• The upper boundary addresses for incrementing
buffers
• The lower boundary addresses for decrementing
buffers
It is important to realize that the address boundaries
check for addresses less than or greater than the upper
(for incrementing buffers) and lower (for decrementing
buffers) boundary addresses (not just equal to).
Address changes can, therefore, jump beyond
boundaries and still be adjusted correctly.
4.7 Bit-Reversed Addressing
Bit-Reversed Addressing mode is intended to simplify
data reordering for radix-2 FFT algorithms. It is
supported by the X AGU for data writes only.
The modifier, which can be a constant value or register
contents, is regarded as having its bit order reversed.
The address source and destination are kept in normal
order. Thus, the only operand requiring reversal is the
modifier.
4.7.1 BIT-REVERSED ADDRESSING
IMPLEMENTATION
Bit-Reversed Addressing mode is enabled in any of
these situations:
• BWM bits (W register selection) in the MODCON
register are any value other than ‘15’ (the stack
cannot be accessed using Bit-Reversed
Addressing)
• The BREN bit is set in the XBREV register
• The addressing mode used is Register Indirect
with Pre-Increment or Post-Increment
If the length of a bit-reversed buffer is M = 2N bytes,
the last ‘N’ bits of the data buffer start address must
be zeros.
XB<14:0> is the Bit-Reversed Address modifier, or
‘pivot point,’ which is typically a constant. In the case of
an FFT computation, its value is equal to half of the FFT
data buffer size.
When enabled, Bit-Reversed Addressing is executed
only for Register Indirect with Pre-Increment or Post-
Increment Addressing and word-sized data writes. It
does not function for any other addressing mode or for
byte-sized data, and normal addresses are generated
instead. When Bit-Reversed Addressing is active, the
W Address Pointer is always added to the address
modifier (XB), and the offset associated with the
Register Indirect Addressing mode is ignored. In
addition, as word-sized data is a requirement, the LSb
of the EA is ignored (and always clear).
If Bit-Reversed Addressing has already been enabled
by setting the BREN bit (XBREV<15>), a write to the
XBREV register should not be immediately followed by
an indirect read operation using the W register that has
been designated as the bit-reversed pointer.
Note: The modulo corrected effective address is
written back to the register only when Pre-
Modify or Post-Modify Addressing mode is
used to compute the effective address.
When an address offset (such as [W7 +
W2]) is used, Modulo Address correction
is performed but the contents of the
register remain unchanged.
Note: All bit-reversed EA calculations assume
word-sized data (LSb of every EA is
always clear). The XB value is scaled
accordingly to generate compatible (byte)
addresses.
Note: Modulo Addressing and Bit-Reversed
Addressing should not be enabled
together. If an application attempts to do so,
Bit-Reversed Addressing assumes priority
when active for the X WAGU and X WAGU,
Modulo Addressing is disabled. However,
Modulo Addressing continues to function in
the X RAGU.
© 2007-2012 Microchip Technology Inc. DS70292G-page 65
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 4-8: BIT-REVERSED ADDRESS EXAMPLE
TABLE 4-38: BIT-REVERSED ADDRESS SEQUENCE (16-ENTRY)
Normal Address Bit-Reversed Address
A3 A2 A1 A0 Decimal A3 A2 A1 A0 Decimal
0000 00000 0
0001 11000 8
0010 20100 4
0011 31100 12
0100 40010 2
0101 51010 10
0110 60110 6
0111 71110 14
1000 80001 1
1001 91001 9
1010 10 0101 5
1011 11 1101 13
1100 12 0011 3
1101 13 1011 11
1110 14 0111 7
1111 15 1111 15
b3 b2 b1 0
b2 b3 b4 0
Bit Locations Swapped Left-to-Right
Around Center of Binary Value
Bit-Reversed Address
XB = 0x0008 for a 16-Word Bit-Reversed Buffer
b7 b6 b5 b1
b7 b6 b5 b4
b11 b10 b9 b8
b11 b10 b9 b8
b15 b14 b13 b12
b15 b14 b13 b12
Sequential Address
Pivot Point
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 66 © 2007-2012 Microchip Technology Inc.
4.8 Interfacing Program and Data
Memory Spaces
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 architecture uses
a 24 bit wide program space and a 16 bit wide data
space. The architecture is also a modified Harvard
scheme, meaning that data can also be present in the
program space. To use this data successfully, it must
be accessed in a way that preserves the alignment of
information in both spaces.
Aside from normal execution, the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 architecture provides
two methods by which program space can be
accessed during operation:
• Using table instructions to access individual bytes
or words anywhere in the program space
• Remapping a portion of the program space into
the data space (Program Space Visibility)
Table instructions allow an application to read or write
to small areas of the program memory. This capability
makes the method ideal for accessing data tables that
need to be updated periodically. It also allows access
to all bytes of the program word. The remapping
method allows an application to access a large block of
data on a read-only basis, which is ideal for look-ups
from a large table of static data. The application can
only access the least significant word of the program
word.
4.8.1 ADDRESSING PROGRAM SPACE
Since the address ranges for the data and program
spaces are 16 and 24 bits, respectively, a method is
needed to create a 23-bit or 24-bit program address
from 16-bit data registers. The solution depends on the
interface method to be used.
For table operations, the 8-bit Table Page register
(TBLPAG) is used to define a 32K word region within
the program space. This is concatenated with a 16-bit
EA to arrive at a full 24-bit program space address. In
this format, the Most Significant bit of TBLPAG is used
to determine if the operation occurs in the user memory
(TBLPAG<7> = 0) or the configuration memory
(TBLPAG<7> = 1).
For remapping operations, the 8-bit Program Space
Visibility register (PSVPAG) is used to define a
16K word page in the program space. When the Most
Significant bit of the EA is ‘1’, PSVPAG is concatenated
with the lower 15 bits of the EA to form a 23-bit program
space address. Unlike table operations, this limits
remapping operations strictly to the user memory area.
Table 4-39 and Figure 4-9 show how the program EA is
created for table operations and remapping accesses
from the data EA. Here, P<23:0> refers to a program
space word, and D<15:0> refers to a data space word.
TABLE 4-39: PROGRAM SPACE ADDRESS CONSTRUCTION
Access Type Access
Space
Program Space Address
<23> <22:16> <15> <14:1> <0>
Instruction Access
(Code Execution)
User 0PC<22:1> 0
0xx xxxx xxxx xxxx xxxx xxx0
TBLRD/TBLWT
(Byte/Word Read/Write)
User TBLPAG<7:0> Data EA<15:0>
0xxx xxxx xxxx xxxx xxxx xxxx
Configuration TBLPAG<7:0> Data EA<15:0>
1xxx xxxx xxxx xxxx xxxx xxxx
Program Space Visibility
(Block Remap/Read)
User 0PSVPAG<7:0> Data EA<14:0>(1)
0 xxxx xxxx xxx xxxx xxxx xxxx
Note 1: Data EA<15> is always ‘1’ in this case, but is not used in calculating the program space address. Bit 15 of
the address is PSVPAG<0>.
© 2007-2012 Microchip Technology Inc. DS70292G-page 67
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 4-9: DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION
0Program Counter
23 bits
1
PSVPAG
8 bits
EA
15 bits
Program Counter(1)
Select
TBLPAG
8 bits
EA
16 bits
Byte Select
0
0
1/0
User/Configuration
Table Operations(2)
Program Space Visibility(1)
Space Select
24 bits
23 bits
(Remapping)
1/0
0
Note 1: The Least Significant bit (LSb) of program space addresses is always fixed as ‘0’ to maintain
word alignment of data in the program and data spaces.
2: Table operations are not required to be word aligned. Table read operations are permitted
in the configuration memory space.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 68 © 2007-2012 Microchip Technology Inc.
4.8.2 DATA ACCESS FROM PROGRAM
MEMORY USING TABLE
INSTRUCTIONS
The TBLRDL and TBLWTL instructions offer a direct
method of reading or writing the lower word of any
address within the program space without going
through data space. The TBLRDH and TBLWTH
instructions are the only method to read or write the
upper 8 bits of a program space word as data.
The PC is incremented by two for each successive
24-bit program word. This allows program memory
addresses to directly map to data space addresses.
Program memory can thus be regarded as two 16-bit-
wide word address spaces, residing side by side, each
with the same address range. TBLRDL and TBLWTL
access the space that contains the least significant
data word. TBLRDH and TBLWTH access the space that
contains the upper data byte.
Two table instructions are provided to move byte or
word-sized (16-bit) data to and from program space.
Both function as either byte or word operations.
•TBLRDL (Table Read Low):
- In Word mode, this instruction maps the
lower word of the program space
location (P<15:0>) to a data address
(D<15:0>).
- In Byte mode, either the upper or lower byte
of the lower program word is mapped to the
lower byte of a data address. The upper byte
is selected when Byte Select is ‘1’; the lower
byte is selected when it is ‘0’.
•TBLRDH (Table Read High):
- In Word mode, this instruction maps the entire
upper word of a program address (P<23:16>)
to a data address. The ‘phantom’ byte
(D<15:8>), is always ‘0’.
- In Byte mode, this instruction maps the upper
or lower byte of the program word to D<7:0>
of the data address, in the TBLRDL instruc-
tion. The data is always ‘0’ when the upper
‘phantom’ byte is selected (Byte Select = 1).
In a similar fashion, two table instructions, TBLWTH
and TBLWTL, are used to write individual bytes or
words to a program space address. The details of
their operation are explained in Section 5.0 “Flash
Program Memory”.
For all table operations, the area of program memory
space to be accessed is determined by the Table Page
register (TBLPAG). TBLPAG covers the entire program
memory space of the device, including user application
and configuration spaces. When TBLPAG<7> = 0, the
table page is located in the user memory space. When
TBLPAG<7> = 1, the page is located in configuration
space.
FIGURE 4-10: ACCESSING PROGRAM MEMORY WITH TABLE INSTRUCTIONS
081623
00000000
00000000
00000000
00000000
‘Phantom’ Byte
TBLRDH.B (Wn<0> = 0)
TBLRDL.W
TBLRDL.B (Wn<0> = 1)
TBLRDL.B (Wn<0> = 0)
23 15 0
TBLPAG
02
0x000000
0x800000
0x020000
0x030000
Program Space
The address for the table operation is determined by the data EA
within the page defined by the TBLPAG register.
Only read operations are shown; write operations are also valid in
the user memory area.
© 2007-2012 Microchip Technology Inc. DS70292G-page 69
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
4.8.3 READING DATA FROM PROGRAM
MEMORY USING PROGRAM SPACE
VISIBILITY
The upper 32 Kbytes of data space may optionally be
mapped into any 16K word page of the program space.
This option provides transparent access to stored
constant data from the data space without the need to
use special instructions (such as TBLRDL/H).
Program space access through the data space occurs
if the Most Significant bit of the data space EA is ‘1’ and
program space visibility is enabled by setting the PSV
bit in the Core Control register (CORCON<2>). The
location of the program memory space to be mapped
into the data space is determined by the Program
Space Visibility Page register (PSVPAG). This 8-bit
register defines any one of 256 possible pages of
16K words in program space. In effect, PSVPAG
functions as the upper 8 bits of the program memory
address, with the 15 bits of the EA functioning as the
lower bits. By incrementing the PC by 2 for each
program memory word, the lower 15 bits of data space
addresses directly map to the lower 15 bits in the
corresponding program space addresses.
Data reads to this area add a cycle to the instruction
being executed, since two program memory fetches
are required.
Although each data space address 0x8000 and higher
maps directly into a corresponding program memory
address (see Figure 4-11), only the lower 16 bits of the
24-bit program word are used to contain the data. The
upper 8 bits of any program space location used as
data should be programmed with ‘1111 1111’ or
‘0000 0000’ to force a NOP. This prevents possible
issues should the area of code ever be accidentally
executed.
For operations that use PSV and are executed outside
a REPEAT loop, the MOV and MOV.D instructions
require one instruction cycle in addition to the specified
execution time. All other instructions require two
instruction cycles in addition to the specified execution
time.
For operations that use PSV, and are executed inside
a REPEAT loop, these instances require two instruction
cycles in addition to the specified execution time of the
instruction:
• Execution in the first iteration
• Execution in the last iteration
• Execution prior to exiting the loop due to an
interrupt
• Execution upon re-entering the loop after an
interrupt is serviced
Any other iteration of the REPEAT loop allows the
instruction using PSV to access data, to execute in a
single cycle.
FIGURE 4-11: PROGRAM SPACE VISIBILITY OPERATION
Note: PSV access is temporarily disabled during
table reads/writes.
23 15 0
PSVPAG
Data Space
Program Space
0x0000
0x8000
0xFFFF
02 0x000000
0x800000
0x010000
0x018000
When CORCON<2> = 1 and EA<15> = 1:
The data in the page
designated by
PSVPAG is mapped
into the upper half of
the data memory
space...
Data EA<14:0>
...while the lower 15 bits
of the EA specify an
exact address within
the PSV area. This
corresponds exactly to
the same lower 15 bits
of the actual program
space address.
PSV Area
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 70 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 71
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
5.0 FLASH PROGRAM MEMORY
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices contain
internal Flash program memory for storing and
executing application code. The memory is readable,
writable and erasable during normal operation over the
entire VDD range.
Flash memory can be programmed in two ways:
• In-Circuit Serial Programming™ (ICSP™)
programming capability
• Run-Time Self-Programming (RTSP)
ICSP allows any of the following devices,
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04, to be serially
programmed while in the end application circuit. This is
done with two lines for programming clock and
programming data (one of the alternate programming
pin pairs: PGECx/PGEDx), and three other lines for
power (VDD), ground (VSS) and Master Clear (MCLR).
This allows customers to manufacture boards with
unprogrammed devices and then program the digital
signal controller just before shipping the product. This
also allows the most recent firmware or a custom
firmware to be programmed.
RTSP is accomplished using TBLRD (table read) and
TBLWT (table write) instructions. With RTSP, the user
application can write program memory data either in
blocks or ‘rows’ of 64 instructions (192 bytes) at a time
or a single program memory word, and erase program
memory in blocks or ‘pages’ of 512 instructions (1536
bytes) at a time.
5.1 Table Instructions and Flash
Programming
Regardless of the method used, all programming of
Flash memory is done with the table read and table
write instructions. These allow direct read and write
access to the program memory space from the data
memory while the device is in normal operating mode.
The 24-bit target address in the program memory is
formed using bits <7:0> of the TBLPAG register and the
Effective Address (EA) from a W register specified in
the table instruction, as shown in Figure 5-1.
The TBLRDL and the TBLWTL instructions are used to
read or write to bits <15:0> of program memory.
TBLRDL and TBLWTL can access program memory in
both Word and Byte modes.
The TBLRDH and TBLWTH instructions are used to read
or write to bits <23:16> of program memory. TBLRDH
and TBLWTH can also access program memory in Word
or Byte mode.
FIGURE 5-1: ADDRESSING FOR TABLE REGISTERS
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 5. “Flash
Programming” (DS70191) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
0
Program Counter
24 bits
Program Counter
TBLPAG Reg
8 bits
Working Reg EA
16 bits
Byte
24-bit EA
0
1/0
Select
Using
Table Instruction
Using
User/Configuration
Space Select
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 72 © 2007-2012 Microchip Technology Inc.
5.2 RTSP Operation
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 Flash program
memory array is organized into rows of 64 instructions
or 192 bytes. RTSP allows the user application to erase
a page of memory, which consists of eight rows (512
instructions) at a time, and to program one row or one
word at a time. Table 30-12 shows typical erase and
programming times. The 8-row erase pages and single
row write rows are edge-aligned from the beginning of
program memory, on boundaries of 1536 bytes and
192 bytes, respectively.
The program memory implements holding buffers that
can contain 64 instructions of programming data. Prior
to the actual programming operation, the write data
must be loaded into the buffers sequentially. The
instruction words loaded must always be from a group
of 64 boundary.
The basic sequence for RTSP programming is to set up
a Table Pointer, then do a series of TBLWT instructions
to load the buffers. Programming is performed by
setting the control bits in the NVMCON register. A total
of 64 TBLWTL and TBLWTH instructions are required
to load the instructions.
All of the table write operations are single-word writes
(two instruction cycles) because only the buffers are
written. A programming cycle is required for
programming each row.
5.3 Programming Operations
A complete programming sequence is necessary for
programming or erasing the internal Flash in RTSP
mode. The processor stalls (waits) until the
programming operation is finished.
The programming time depends on the FRC accuracy
(see Table 30-19) and the value of the FRC Oscillator
Tuning register (see Register 9-4). Use the formula in
Equation 5-1 to calculate the minimum and maximum
values for the Row Write Time, Page Erase Time and
Word Write Cycle Time parameters (see Table 30-12).
EQUATION 5-1: PROGRAMMING TIME
For example, if the device is operating at +125°C,
the FRC accuracy will be ±5%. If the TUN<5:0> bits
(see Register 9-4) are set to ‘b111111, the
minimum row write time is equal to Equation 5-2.
EQUATION 5-2: MINIMUM ROW WRITE
TIME
The maximum row write time is equal to Equation 5-3.
EQUATION 5-3: MAXIMUM ROW WRITE
TIME
Setting the WR bit (NVMCON<15>) starts the
operation, and the WR bit is automatically cleared
when the operation is finished.
5.4 Control Registers
Two SFRs are used to read and write the program
Flash memory: NVMCON and NVMKEY.
The NVMCON register (Register 5-1) controls which
blocks are to be erased, which memory type is to be
programmed and the start of the programming cycle.
NVMKEY (Register 5-2) is a write-only register that is
used for write protection. To start a programming or
erase sequence, the user application must consecu-
tively write 0x55 and 0xAA to the NVMKEY register.
Refer to Section 5.3 “Programming Operations” for
further details.
5.5 Flash Resources
Many useful resources related to Flash memory are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
5.5.1 KEY RESOURCES
•Section 5. “Flash Programming” (DS70191)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
T
7.37 MHz FRC Accuracy()%FRC Tuning()%××
----------------------------------------------------------------------------------------------------------------------------
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
TRW
11064 Cycles
7.37 MHz 10.05+()1 0.00375–()××
------------------------------------------------------------------------------------------------ 1.435ms==
TRW
11064 Cycles
7.37 MHz 10.05–()1 0.00375–()××
------------------------------------------------------------------------------------------------1.586ms==
© 2007-2012 Microchip Technology Inc. DS70292G-page 73
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
5.6 Flash Control Registers
REGISTER 5-1: NVMCON: FLASH MEMORY CONTROL REGISTER
R/SO-0(1) R/W-0(1) R/W-0(1) U-0 U-0 U-0 U-0 U-0
WR WREN WRERR — — — — —
bit 15 bit 8
U-0 R/W-0(1) U-0 U-0 R/W-0(1) R/W-0(1) R/W-0(1) R/W-0(1)
— ERASE ——NVMOP<3:0>
(2)
bit 7 bit 0
Legend: SO = Settable only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 WR: Write Control bit
1 = Initiates a Flash memory program or erase operation. The operation is self-timed and the bit is
cleared by hardware once operation is complete
0 = Program or erase operation is complete and inactive
bit 14 WREN: Write Enable bit
1 = Enable Flash program/erase operations
0 = Inhibit Flash program/erase operations
bit 13 WRERR: Write Sequence Error Flag bit
1 = An improper program or erase sequence attempt or termination has occurred (bit is set
automatically on any set attempt of the WR bit)
0 = The program or erase operation completed normally
bit 12-7 Unimplemented: Read as ‘0’
bit 6 ERASE: Erase/Program Enable bit
1 = Perform the erase operation specified by NVMOP<3:0> on the next WR command
0 = Perform the program operation specified by NVMOP<3:0> on the next WR command
bit 5-4 Unimplemented: Read as ‘0’
bit 3-0 NVMOP<3:0>: NVM Operation Select bits(2)
If ERASE = 1:
1111 = Memory bulk erase operation
1110 = Reserved
1101 = Erase General Segment
1100 = Erase Secure Segment
1011 = Reserved
0011 = No operation
0010 = Memory page erase operation
0001 = No operation
0000 = Erase a single Configuration register byte
If ERASE = 0:
1111 = No operation
1110 = Reserved
1101 = No operation
1100 = No operation
1011 = Reserved
0011 = Memory word program operation
0010 = No operation
0001 = Memory row program operation
0000 = Program a single Configuration register byte
Note 1: These bits can only be reset on POR.
2: All other combinations of NVMOP<3:0> are unimplemented.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 74 © 2007-2012 Microchip Technology Inc.
REGISTER 5-2: NVMKEY: NONVOLATILE MEMORY KEY REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
W-0 W-0 W-0 W-0 W-0 W-0 W-0 W-0
NVMKEY<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-0 NVMKEY<7:0>: Key Register (write-only) bits
© 2007-2012 Microchip Technology Inc. DS70292G-page 75
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
5.6.1 PROGRAMMING ALGORITHM FOR
FLASH PROGRAM MEMORY
Programmers can program one row of program Flash
memory at a time. To do this, it is necessary to erase
the 8-row erase page that contains the desired row.
The general process is:
1. Read eight rows of program memory
(512 instructions) and store in data RAM.
2. Update the program data in RAM with the
desired new data.
3. Erase the block (see Example 5-1):
a) Set the NVMOP bits (NVMCON<3:0>) to
‘0010’ to configure for block erase. Set the
ERASE (NVMCON<6>) and WREN
(NVMCON<14>) bits.
b) Write the starting address of the page to be
erased into the TBLPAG and W registers.
c) Write 0x55 to NVMKEY.
d) Write 0xAA to NVMKEY.
e) Set the WR bit (NVMCON<15>). The erase
cycle begins and the CPU stalls for the dura-
tion of the erase cycle. When the erase is
done, the WR bit is cleared automatically.
4. Write the first 64 instructions from data RAM into
the program memory buffers (see Example 5-2).
5. Write the program block to Flash memory:
a) Set the NVMOP bits to ‘0001’ to configure
for row programming. Clear the ERASE bit
and set the WREN bit.
b) Write 0x55 to NVMKEY.
c) Write 0xAA to NVMKEY.
d) Set the WR bit. The programming cycle
begins and the CPU stalls for the duration of
the write cycle. When the write to Flash mem-
ory is done, the WR bit is cleared
automatically.
6. Repeat steps 4 and 5, using the next available
64 instructions from the block in data RAM by
incrementing the value in TBLPAG, until all
512 instructions are written back to Flash memory.
For protection against accidental operations, the write
initiate sequence for NVMKEY must be used to allow
any erase or program operation to proceed. After the
programming command has been executed, the user
application must wait for the programming time until
programming is complete. The two instructions
following the start of the programming sequence
should be NOPs, as shown in Example 5-3.
EXAMPLE 5-1: ERASING A PROGRAM MEMORY PAGE
; Set up NVMCON for block erase operation
MOV #0x4042, W0 ;
MOV W0, NVMCON ; Initialize NVMCON
; Init pointer to row to be ERASED
MOV #tblpage(PROG_ADDR), W0 ;
MOV W0, TBLPAG ; Initialize PM Page Boundary SFR
MOV #tbloffset(PROG_ADDR), W0 ; Initialize in-page EA[15:0] pointer
TBLWTL W0, [W0] ; Set base address of erase block
DISI #5 ; Block all interrupts with priority <7
; for next 5 instructions
MOV #0x55, W0
MOV W0, NVMKEY ; Write the 55 key
MOV #0xAA, W1 ;
MOV W1, NVMKEY ; Write the AA key
BSET NVMCON, #WR ; Start the erase sequence
NOP ; Insert two NOPs after the erase
NOP ; command is asserted
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 76 © 2007-2012 Microchip Technology Inc.
EXAMPLE 5-2: LOADING THE WRITE BUFFERS
EXAMPLE 5-3: INITIATING A PROGRAMMING SEQUENCE
; Set up NVMCON for row programming operations
MOV #0x4001, W0 ;
MOV W0, NVMCON ; Initialize NVMCON
; Set up a pointer to the first program memory location to be written
; program memory selected, and writes enabled
MOV #0x0000, W0 ;
MOV W0, TBLPAG ; Initialize PM Page Boundary SFR
MOV #0x6000, W0 ; An example program memory address
; Perform the TBLWT instructions to write the latches
; 0th_program_word
MOV #LOW_WORD_0, W2 ;
MOV #HIGH_BYTE_0, W3 ;
TBLWTL W2, [W0] ; Write PM low word into program latch
TBLWTH W3, [W0++] ; Write PM high byte into program latch
; 1st_program_word
MOV #LOW_WORD_1, W2 ;
MOV #HIGH_BYTE_1, W3 ;
TBLWTL W2, [W0] ; Write PM low word into program latch
TBLWTH W3, [W0++] ; Write PM high byte into program latch
; 2nd_program_word
MOV #LOW_WORD_2, W2 ;
MOV #HIGH_BYTE_2, W3 ;
TBLWTL W2, [W0] ; Write PM low word into program latch
TBLWTH W3, [W0++] ; Write PM high byte into program latch
•
•
•
; 63rd_program_word
MOV #LOW_WORD_31, W2 ;
MOV #HIGH_BYTE_31, W3 ;
TBLWTL W2, [W0] ; Write PM low word into program latch
TBLWTH W3, [W0++] ; Write PM high byte into program latch
DISI #5 ; Block all interrupts with priority <7
; for next 5 instructions
MOV #0x55, W0
MOV W0, NVMKEY ; Write the 55 key
MOV #0xAA, W1 ;
MOV W1, NVMKEY ; Write the AA key
BSET NVMCON, #WR ; Start the erase sequence
NOP ; Insert two NOPs after the
NOP ; erase command is asserted
© 2007-2012 Microchip Technology Inc. DS70292G-page 77
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.0 RESETS
The Reset module combines all reset sources and
controls the device Master Reset Signal, SYSRST
. The
following is a list of device Reset sources:
• POR: Power-on Reset
• BOR: Brown-out Reset
•MCLR
: Master Clear Pin Reset
•SWR: RESET Instruction
• WDTO: Watchdog Timer Reset
• CM: Configuration Mismatch Reset
• TRAPR: Trap Conflict Reset
• IOPUWR: Illegal Condition Device Reset
- Illegal Opcode Reset
- Uninitialized W Register Reset
- Security Reset
A simplified block diagram of the Reset module is
shown in Figure 6-1.
Any active source of reset will make the SYSRST sig-
nal active. On system Reset, some of the registers
associated with the CPU and peripherals are forced to
a known Reset state and some are unaffected.
All types of device Reset sets a corresponding status
bit in the RCON register to indicate the type of Reset
(see Register 6-1).
A POR clears all the bits, except for the POR bit
(RCON<0>), that are set. The user application can set
or clear any bit at any time during code execution. The
RCON bits only serve as status bits. Setting a particular
Reset status bit in software does not cause a device
Reset to occur.
The RCON register also has other bits associated with
the Watchdog Timer and device power-saving states.
The function of these bits is discussed in other sections
of this manual.
FIGURE 6-1: RESET SYSTEM BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 8. “Reset” (DS70192) of
the “dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: Refer to the specific peripheral section or
Section 3.0 “CPU” of this manual for
register Reset states.
Note: The status bits in the RCON register
should be cleared after they are read so
that the next RCON register value after a
device Reset is meaningful.
MCLR
VDD
Internal
Regulator
BOR
Sleep or Idle
RESET Instruction
WDT
Module
Glitch Filter
Trap Conflict
Illegal Opcode
Uninitialized W Register
SYSRST
VDD Rise
Detect
POR
Configuration Mismatch
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 78 © 2007-2012 Microchip Technology Inc.
6.1 Reset Resources
Many useful resources related to Resets are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
6.1.1 KEY RESOURCES
•Section 8. “Resets” (DS70192)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 79
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.2 Reset Control Registers
REGISTER 6-1: RCON: RESET CONTROL REGISTER(1)
R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
TRAPR IOPUWR — — — —CMVREGS
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1
EXTR SWR SWDTEN(2) WDTO SLEEP IDLE BOR POR
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TRAPR: Trap Reset Flag bit
1 = A Trap Conflict Reset has occurred
0 = A Trap Conflict Reset has not occurred
bit 14 IOPUWR: Illegal Opcode or Uninitialized W Access Reset Flag bit
1 = An illegal opcode detection, an illegal address mode or uninitialized W register used as an
Address Pointer caused a Reset
0 = An illegal opcode or uninitialized W Reset has not occurred
bit 13-10 Unimplemented: Read as ‘0’
bit 9 CM: Configuration Mismatch Flag bit
1 = A configuration mismatch Reset has occurred
0 = A configuration mismatch Reset has not occurred
bit 8 VREGS: Voltage Regulator Standby During Sleep bit
1 = Voltage regulator is active during Sleep
0 = Voltage regulator goes into Standby mode during Sleep
bit 7 EXTR: External Reset (MCLR) Pin bit
1 = A Master Clear (pin) Reset has occurred
0 = A Master Clear (pin) Reset has not occurred
bit 6 SWR: Software Reset (Instruction) Flag bit
1 = A RESET instruction has been executed
0 = A RESET instruction has not been executed
bit 5 SWDTEN: Software Enable/Disable of WDT bit(2)
1 = WDT is enabled
0 = WDT is disabled
bit 4 WDTO: Watchdog Timer Time-out Flag bit
1 = WDT time-out has occurred
0 = WDT time-out has not occurred
bit 3 SLEEP: Wake-up from Sleep Flag bit
1 = Device has been in Sleep mode
0 = Device has not been in Sleep mode
bit 2 IDLE: Wake-up from Idle Flag bit
1 = Device was in Idle mode
0 = Device was not in Idle mode
Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not
cause a device Reset.
2: If the FWDTEN Configuration bit is ‘1’ (unprogrammed), the WDT is always enabled, regardless of the
SWDTEN bit setting.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 80 © 2007-2012 Microchip Technology Inc.
bit 1 BOR: Brown-out Reset Flag bit
1 = A Brown-out Reset has occurred
0 = A Brown-out Reset has not occurred
bit 0 POR: Power-on Reset Flag bit
1 = A Power-on Reset has occurred
0 = A Power-on Reset has not occurred
REGISTER 6-1: RCON: RESET CONTROL REGISTER(1) (CONTINUED)
Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not
cause a device Reset.
2: If the FWDTEN Configuration bit is ‘1’ (unprogrammed), the WDT is always enabled, regardless of the
SWDTEN bit setting.
© 2007-2012 Microchip Technology Inc. DS70292G-page 81
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.3 System Reset
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 family of devices
have two types of Reset:
• Cold Reset
• Warm Reset
A cold Reset is the result of a Power-on Reset (POR)
or a Brown-out Reset (BOR). On a cold Reset, the
FNOSC configuration bits in the FOSC device
configuration register selects the device clock source.
A warm Reset is the result of all other reset sources,
including the RESET instruction. On warm Reset, the
device will continue to operate from the current clock
source as indicated by the Current Oscillator Selection
bits (COSC<2:0>) in the Oscillator Control register
(OSCCON<14:12>).
The device is kept in a Reset state until the system
power supplies have stabilized at appropriate levels
and the oscillator clock is ready. The sequence in
which this occurs is shown in Figure 6-2.
TABLE 6-1: OSCILLATOR DELAY
Oscillator Mode Oscillator
Startup Delay
Oscillator Startup
Timer PLL Lock Time Total Delay
FRC, FRCDIV16,
FRCDIVN
TOSCD ——TOSCD
FRCPLL TOSCD —TLOCK TOSCD + TLOCK
XT TOSCD TOST —TOSCD + TOST
HS TOSCD TOST —TOSCD + TOST
EC ————
XTPLL TOSCD TOST TLOCK TOSCD + TOST + TLOCK
HSPLL TOSCD TOST TLOCK TOSCD + TOST + TLOCK
ECPLL — — TLOCK TLOCK
SOSC TOSCD TOST —TOSCD + TOST
LPRC TOSCD ——TOSCD
Note 1: TOSCD = Oscillator Start-up Delay (1.1 μs max for FRC, 70 μs max for LPRC). Crystal Oscillator start-up
times vary with crystal characteristics, load capacitance, etc.
2: TOST = Oscillator Start-up Timer Delay (1024 oscillator clock period). For example, TOST = 102.4 μs for a
10 MHz crystal and TOST = 32 ms for a 32 kHz crystal.
3: TLOCK = PLL lock time (1.5 ms nominal), if PLL is enabled.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 82 © 2007-2012 Microchip Technology Inc.
FIGURE 6-2: SYSTEM RESET TIMING
Reset Run
Device Status
VDD
VPOR
Vbor
VBOR
POR
BOR
SYSRST
TPWRT
TPOR
TBOR
Oscillator Clock
TOSCD TOST TLOCK
Time
FSCM TFSCM
1
2
3
4
5
6
Note 1: POR: A POR circuit holds the device in Reset when the power supply is turned on. The POR circuit is active
until VDD crosses the VPOR threshold and the delay TPOR has elapsed.
2: BOR: The on-chip voltage regulator has a BOR circuit that keeps the device in Reset until VDD crosses the
VBOR threshold and the delay TBOR has elapsed. The delay TBOR ensures the voltage regulator output
becomes stable.
3: PWRT Timer: The programmable power-up timer continues to hold the processor in Reset for a specific
period of time (TPWRT) after a BOR. The delay TPWRT ensures that the system power supplies have stabilized
at the appropriate level for full-speed operation. After the delay TPWRT has elapsed, the SYSRST becomes
inactive, which in turn enables the selected oscillator to start generating clock cycles.
4: Oscillator Delay: The total delay for the clock to be ready for various clock source selections are given in
Table 6-1. Refer to Section 9.0 “Oscillator Configuration” for more information.
5: When the oscillator clock is ready, the processor begins execution from location 0x000000. The user
application programs a GOTO instruction at the reset address, which redirects program execution to the
appropriate start-up routine.
6: The Fail-Safe Clock Monitor (FSCM), if enabled, begins to monitor the system clock when the system clock
is ready and the delay TFSCM elapsed.
© 2007-2012 Microchip Technology Inc. DS70292G-page 83
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.4 Power-on Reset (POR)
A Power-on Reset (POR) circuit ensures the device is
reset from power-on. The POR circuit is active until
VDD crosses the VPOR threshold and the delay TPOR
has elapsed. The delay TPOR ensures the internal
device bias circuits become stable.
The device supply voltage characteristics must meet
the specified starting voltage and rise rate
requirements to generate the POR. Refer to
Section 30.0 “Electrical Characteristics” for details.
The POR status bit (POR) in the Reset Control register
(RCON<0>) is set to indicate the Power-on Reset.
6.4.1 Brown-out Reset (BOR) and
Power-up timer (PWRT)
The on-chip regulator has a Brown-out Reset (BOR)
circuit that resets the device when the VDD is too low
(VDD < VBOR) for proper device operation. The BOR cir-
cuit keeps the device in Reset until VDD crosses VBOR
threshold and the delay TBOR has elapsed. The delay
TBOR ensures the voltage regulator output becomes
stable.
The BOR status bit (BOR) in the Reset Control register
(RCON<1>) is set to indicate the Brown-out Reset.
The device will not run at full speed after a BOR as the
VDD should rise to acceptable levels for full-speed
operation. The PWRT provides power-up time delay
(TPWRT) to ensure that the system power supplies have
stabilized at the appropriate levels for full-speed
operation before the SYSRST is released.
The power-up timer delay (TPWRT) is programmed by
the Power-on Reset Timer Value Select bits
(FPWRT<2:0>) in the POR Configuration register
(FPOR<2:0>), which provides eight settings (from 0 ms
to 128 ms). Refer to Section 27.0 “Special Features”
for further details.
Figure 6-3 shows the typical brown-out scenarios. The
reset delay (TBOR + TPWRT) is initiated each time VDD
rises above the VBOR trip point
TABLE 6-2: OSCILLATOR DELAY
Symbol Parameter Value
VPOR POR threshold 1.8V nominal
TPOR POR extension time 30 μs maximum
VBOR BOR threshold 2.5V nominal
TBOR BOR extension time 100 μs maximum
TPWRT Programmable power-up time delay 0-128 ms nominal
TFSCM Fail-Safe Clock Monitor Delay 900 μs maximum
Note: When the device exits the Reset condi-
tion (begins normal operation), the
device operating parameters (voltage,
frequency, temperature, etc.) must be
within their operating ranges, otherwise
the device may not function correctly.
The user application must ensure that
the delay between the time power is
first applied, and the time SYSRST
becomes inactive, is long enough to get
all operating parameters within
specification.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 84 © 2007-2012 Microchip Technology Inc.
FIGURE 6-3: BROWN-OUT SITUATIONS
6.5 External Reset (EXTR)
The external Reset is generated by driving the MCLR
pin low. The MCLR pin is a Schmitt trigger input with an
additional glitch filter. Reset pulses that are longer than
the minimum pulse-width will generate a Reset. Refer
to Section 30.0 “Electrical Characteristics” for
minimum pulse-width specifications. The External
Reset (MCLR) Pin (EXTR) bit in the Reset Control
register (RCON) is set to indicate the MCLR Reset.
6.5.0.1 EXTERNAL SUPERVISORY CIRCUIT
Many systems have external supervisory circuits that
generate reset signals to Reset multiple devices in the
system. This external Reset signal can be directly con-
nected to the MCLR pin to Reset the device when the
rest of system is Reset.
6.5.0.2 INTERNAL SUPERVISORY CIRCUIT
When using the internal power supervisory circuit to
Reset the device, the external reset pin (MCLR) should
be tied directly or resistively to VDD. In this case, the
MCLR pin will not be used to generate a Reset. The
external reset pin (MCLR) does not have an internal
pull-up and must not be left unconnected.
6.6 Software RESET Instruction (SWR)
Whenever the RESET instruction is executed, the
device will assert SYSRST, placing the device in a
special Reset state. This Reset state will not re-
initialize the clock. The clock source in effect prior to the
RESET instruction will remain. SYSRST is released at
the next instruction cycle, and the reset vector fetch will
commence.
The Software Reset (Instruction) Flag (SWR) bit in the
Reset Control (RCON<6>) register is set to indicate
the software Reset.
6.7 Watchdog Time-out Reset (WDTO)
Whenever a Watchdog time-out occurs, the device will
asynchronously assert SYSRST. The clock source will
remain unchanged. A WDT time-out during Sleep or
Idle mode will wake-up the processor, but will not reset
the processor.
The Watchdog Timer Time-out Flag (WDTO) bit in the
Reset Control register (RCON<4>) is set to indicate
the Watchdog Reset. Refer to Section 27.4
“Watchdog Timer (WDT)” for more information on
Watchdog Reset.
6.8 Trap Conflict Reset
If a lower-priority hard trap occurs while a higher-prior-
ity trap is being processed, a hard trap conflict Reset
occurs. The hard traps include exceptions of priority
level 13 through level 15, inclusive. The address error
(level 13) and oscillator error (level 14) traps fall into
this category.
The Trap Reset Flag (TRAPR) bit in the Reset Control
register (RCON<15>) is set to indicate the Trap Conflict
Reset. Refer to Section 7.0 “Interrupt Controller” for
more information on trap conflict Resets.
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
TBOR + TPWRT
VDD dips before PWRT expires
TBOR + TPWRT
TBOR + TPWRT
© 2007-2012 Microchip Technology Inc. DS70292G-page 85
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.9 Configuration Mismatch Reset
To maintain the integrity of the peripheral pin select
control registers, they are constantly monitored with
shadow registers in hardware. If an unexpected
change in any of the registers occur (such as cell dis-
turbances caused by ESD or other external events), a
configuration mismatch Reset occurs.
The Configuration Mismatch Flag (CM) bit in the Reset
Control register (RCON<9>) is set to indicate the
configuration mismatch Reset. Refer to Section 11.0
“I/O Ports” for more information on the configuration
mismatch Reset.
6.10 Illegal Condition Device Reset
An illegal condition device Reset occurs due to the
following sources:
• Illegal Opcode Reset
• Uninitialized W Register Reset
• Security Reset
The Illegal Opcode or Uninitialized W Access Reset
Flag (IOPUWR) bit in the Reset Control register
(RCON<14>) is set to indicate the illegal condition
device Reset.
6.10.1 ILLEGAL OPCODE RESET
A device Reset is generated if the device attempts to
execute an illegal opcode value that is fetched from
program memory.
The illegal opcode Reset function can prevent the
device from executing program memory sections that
are used to store constant data. To take advantage of
the illegal opcode Reset, use only the lower 16 bits of
each program memory section to store the data values.
The upper 8 bits should be programmed with 0x3F,
which is an illegal opcode value.
6.10.2 UNINITIALIZED W REGISTER
RESET
Any attempts to use the uninitialized W register as an
address pointer will Reset the device. The W register
array (with the exception of W15) is cleared during all
resets and is considered uninitialized until written to.
6.10.3 SECURITY RESET
If a Program Flow Change (PFC) or Vector Flow
Change (VFC) targets a restricted location in a
protected segment (Boot and Secure Segment), that
operation will cause a security Reset.
The PFC occurs when the Program Counter is
reloaded as a result of a Call, Jump, Computed Jump,
Return, Return from Subroutine, or other form of
branch instruction.
The VFC occurs when the Program Counter is
reloaded with an Interrupt or Trap vector.
Refer to Section 27.8 “Code Protection and
CodeGuard™ Security” for more information on
Security Reset.
6.11 Using the RCON Status Bits
The user application can read the Reset Control
register (RCON) after any device Reset to determine
the cause of the reset.
Table 6-3 provides a summary of the reset flag bit
operation.
TABLE 6-3: RESET FLAG BIT OPERATION
Note: The configuration mismatch feature and
associated reset flag is not available on all
devices.
Note: The status bits in the RCON register
should be cleared after they are read so
that the next RCON register value after a
device Reset will be meaningful.
Flag Bit Set by: Cleared by:
TRAPR (RCON<15>) Trap conflict event POR, BOR
IOPWR (RCON<14>) Illegal opcode or uninitialized
W register access or Security Reset
POR, BOR
CM (RCON<9>) Configuration Mismatch POR, BOR
EXTR (RCON<7>) MCLR Reset POR
SWR (RCON<6>) RESET instruction POR, BOR
WDTO (RCON<4>) WDT time-out PWRSAV instruction,
CLRWDT instruction, POR, BOR
SLEEP (RCON<3>) PWRSAV #SLEEP instruction POR, BOR
IDLE (RCON<2>) PWRSAV #IDLE instruction POR, BOR
BOR (RCON<1>) POR, BOR —
POR (RCON<0>) POR —
Note: All Reset flag bits can be set or cleared by user software.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 86 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 87
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
7.0 INTERRUPT CONTROLLER
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 interrupt
controller reduces the numerous peripheral interrupt
request signals to a single interrupt request signal to
the dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 CPU.
The interrupt controller has the following features:
• Up to eight processor exceptions and software traps
• Eight user-selectable priority levels
• Interrupt Vector Table (IVT) with up to 118 vectors
• A unique vector for each interrupt or exception
source
• Fixed priority within a specified user priority level
• Alternate Interrupt Vector Table (AIVT) for debug
support
• Fixed interrupt entry and return latencies
7.1 Interrupt Vector Table
The Interrupt Vector Table (IVT), shown in Figure 7-1,
resides in program memory, starting at location
000004h. The IVT contains 126 vectors consisting of
eight nonmaskable trap vectors plus up to 118 sources
of interrupt. In general, each interrupt source has its
own vector. Each interrupt vector contains a 24-bit wide
address. The value programmed into each interrupt
vector location is the starting address of the associated
Interrupt Service Routine (ISR).
Interrupt vectors are prioritized in terms of their natural
priority. This priority is linked to their position in the
vector table. Lower addresses generally have a higher
natural priority. For example, the interrupt associated
with vector 0 takes priority over interrupts at any other
vector address.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices implement up
to 53 unique interrupts and five nonmaskable traps.
These are summarized in Ta bl e 7-1.
7.1.1 ALTERNATE INTERRUPT VECTOR
TA B L E
The Alternate Interrupt Vector Table (AIVT) is located
after the IVT, as shown in Figure 7-1. Access to the
AIVT is provided by the ALTIVT control bit
(INTCON2<15>). If the ALTIVT bit is set, all interrupt
and exception processes use the alternate vectors
instead of the default vectors. The alternate vectors are
organized in the same manner as the default vectors.
The AIVT supports debugging by providing a means to
switch between an application and a support
environment without requiring the interrupt vectors to
be reprogrammed. This feature also enables switching
between applications for evaluation of different
software algorithms at run time. If the AIVT is not
needed, the AIVT should be programmed with the
same addresses used in the IVT.
7.2 Reset Sequence
A device Reset is not a true exception because the
interrupt controller is not involved in the Reset process.
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 device clears its
registers in response to a Reset, which forces the PC
to zero. The digital signal controller then begins
program execution at location 0x000000. A GOTO
instruction at the Reset address can redirect program
execution to the appropriate start-up routine.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 32. “Interrupts (Part
III)” (DS70214) of the “dsPIC33F/PIC24H
Family Reference Manual”, which is avail-
able from the Microchip website
(www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: Any unimplemented or unused vector
locations in the IVT and AIVT should be
programmed with the address of a default
interrupt handler routine that contains a
RESET instruction.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 88 © 2007-2012 Microchip Technology Inc.
FIGURE 7-1: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 INTERRUPT VECTOR TABLE
Reset – GOTO Instruction 0x000000
Reset – GOTO Address 0x000002
Reserved 0x000004
Oscillator Fail Trap Vector
Address Error Trap Vector
Stack Error Trap Vector
Math Error Trap Vector
DMA Error Trap Vector
Reserved
Reserved
Interrupt Vector 0 0x000014
Interrupt Vector 1
~
~
~
Interrupt Vector 52 0x00007C
Interrupt Vector 53 0x00007E
Interrupt Vector 54 0x000080
~
~
~
Interrupt Vector 116 0x0000FC
Interrupt Vector 117 0x0000FE
Reserved 0x000100
Reserved 0x000102
Reserved
Oscillator Fail Trap Vector
Address Error Trap Vector
Stack Error Trap Vector
Math Error Trap Vector
DMA Error Trap Vector
Reserved
Reserved
Interrupt Vector 0 0x000114
Interrupt Vector 1
~
~
~
Interrupt Vector 52 0x00017C
Interrupt Vector 53 0x00017E
Interrupt Vector 54 0x000180
~
~
~
Interrupt Vector 116
Interrupt Vector 117 0x0001FE
Start of Code 0x000200
Decreasing Natural Order Priority
Interrupt Vector Table (IVT)(1)
Alternate Interrupt Vector Table (AIVT)(1)
Note 1: See Table 7-1 for the list of implemented interrupt vectors.
© 2007-2012 Microchip Technology Inc. DS70292G-page 89
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 7-1: INTERRUPT VECTORS
Vector
Number IVT Address AIVT Address Interrupt Source
0 0x000004 0x000104 Reserved
1 0x000006 0x000106 Oscillator Failure
2 0x000008 0x000108 Address Error
3 0x00000A 0x00010A Stack Error
4 0x00000C 0x00010C Math Error
5 0x00000E 0x00010E DMA Error
6-7 0x000010-0x000012 0x000110-0x000112 Reserved
8 0x000014 0x000114 INT0 – External Interrupt 0
9 0x000016 0x000116 IC1 – Input Capture 1
10 0x000018 0x000118 OC1 – Output Compare 1
11 0x00001A 0x00011A T1 – Timer1
12 0x00001C 0x00011C DMA0 – DMA Channel 0
13 0x00001E 0x00011E IC2 – Input Capture 2
14 0x000020 0x000120 OC2 – Output Compare 2
15 0x000022 0x000122 T2 – Timer2
16 0x000024 0x000124 T3 – Timer3
17 0x000026 0x000126 SPI1E – SPI1 Error
18 0x000028 0x000128 SPI1 – SPI1 Transfer Done
19 0x00002A 0x00012A U1RX – UART1 Receiver
20 0x00002C 0x00012C U1TX – UART1 Transmitter
21 0x00002E 0x00012E ADC1 – ADC 1
22 0x000030 0x000130 DMA1 – DMA Channel 1
23 0x000032 0x000132 Reserved
24 0x000034 0x000134 SI2C1 – I2C1 Slave Events
25 0x000036 0x000136 MI2C1 – I2C1 Master Events
26 0x000038 0x000138 CM – Comparator Interrupt
27 0x00003A 0x00013A CN – Change Notification Interrupt
28 0x00003C 0x00013C INT1 – External Interrupt 1
29 0x00003E 0x00013E Reserved
30 0x000040 0x000140 IC7 – Input Capture 7
31 0x000042 0x000142 IC8 – Input Capture 8
32 0x000044 0x000144 DMA2 – DMA Channel 2
33 0x000046 0x000146 OC3 – Output Compare 3
34 0x000048 0x000148 OC4 – Output Compare 4
35 0x00004A 0x00014A T4 – Timer4
36 0x00004C 0x00014C T5 – Timer5
37 0x00004E 0x00014E INT2 – External Interrupt 2
38 0x000050 0x000150 U2RX – UART2 Receiver
39 0x000052 0x000152 U2TX – UART2 Transmitter
40 0x000054 0x000154 SPI2E – SPI2 Error
41 0x000056 0x000156 SPI2 – SPI2 Transfer Done
42 0x000058 0x000158 C1RX – ECAN1 RX Data Ready
43 0x00005A 0x00015A C1 – ECAN1 Event
44 0x00005C 0x00015C DMA3 – DMA Channel 3
45-52 0x00005E-0x00006C 0x00015E-0x00016C Reserved
53 0x00006E 0x00016E PMP – Parallel Master Port
54 0x000070 0x000170 DMA – DMA Channel 4
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 90 © 2007-2012 Microchip Technology Inc.
55-66 0x000072-0x000088 0x000172-0x000188 Reserved
67 0x00008A 0x00018A DCIE – DCI Error
68 0x00008C 0x00018C DCI – DCI Transfer Done
69 0x00008E 0x00018E DMA5 – DMA Channel 5
70 0x000090 0x000190 RTCC – Real Time Clock
71-72 0x000092-0x000094 0x000192-0x000194 Reserved
73 0x000096 0x000196 U1E – UART1 Error
74 0x000098 0x000198 U2E – UART2 Error
75 0x00009A 0x00019A CRC – CRC Generator Interrupt
76 0x00009C 0x00019C DMA6 – DMA Channel 6
77 0x00009E 0x00019E DMA7 – DMA Channel 7
78 0x0000A0 0x0001A0 C1TX – ECAN1 TX Data Request
79-85 0x0000A2-0x0000AE 0x0001A2-0x0001AE Reserved
86 0x0000B0 0x0001B0 DAC1R – DAC1 Right Data Request
87 0x0000B2 0x0001B2 DAC1L – DAC1 Left Data Request
88-126 0x0000B4-0x0000FE 0x0001B4-0x0001FE Reserved
TABLE 7-1: INTERRUPT VECTORS (CONTINUED)
Vector
Number IVT Address AIVT Address Interrupt Source
© 2007-2012 Microchip Technology Inc. DS70292G-page 91
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
7.3 Interrupt Control and Status
Registers
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices implement a
total of 30 registers for the interrupt controller:
• INTCON1
• INTCON2
•IFSx
•IECx
•IPCx
•INTTREG
7.3.1 INTCON1 AND INTCON2
Global interrupt control functions are controlled from
INTCON1 and INTCON2. INTCON1 contains the
Interrupt Nesting Disable bit (NSTDIS) as well as the
control and status flags for the processor trap sources.
The INTCON2 register controls the external interrupt
request signal behavior and the use of the Alternate
Interrupt Vector Table.
7.3.2 IFSX
The IFS registers maintain all of the interrupt request
flags. Each source of interrupt has a status bit, which is
set by the respective peripherals or external signal and
is cleared via software.
7.3.3 IECX
The IEC registers maintain all of the interrupt enable
bits. These control bits are used to individually enable
interrupts from the peripherals or external signals.
7.3.4 IPCX
The IPC registers are used to set the interrupt priority
level for each source of interrupt. Each user interrupt
source can be assigned to one of eight priority levels.
7.3.5 INTTREG
The INTTREG register contains the associated
interrupt vector number and the new CPU interrupt
priority level, which are latched into vector number
(VECNUM<6:0>) and Interrupt level bits (ILR<3:0>) in
the INTTREG register. The new interrupt priority level
is the priority of the pending interrupt.
The interrupt sources are assigned to the IFSx, IECx
and IPCx registers in the same sequence that they are
listed in Tab le 7 -1 . For example, the INT0 (External
Interrupt 0) is shown as having vector number 8 and a
natural order priority of 0. Thus, the INT0IF bit is found
in IFS0<0>, the INT0IE bit in IEC0<0>, and the INT0IP
bits in the first position of IPC0 (IPC0<2:0>).
7.3.6 STATUS/CONTROL REGISTERS
Although they are not specifically part of the interrupt
control hardware, two of the CPU Control registers
contain bits that control interrupt functionality.
• The CPU STATUS register, SR, contains the
IPL<2:0> bits (SR<7:5>). These bits indicate the
current CPU interrupt priority level. The user
software can change the current CPU priority
level by writing to the IPL bits.
• The CORCON register contains the IPL3 bit
which, together with IPL<2:0>, also indicates the
current CPU priority level. IPL3 is a read-only bit
so that trap events cannot be masked by the user
software.
All Interrupt registers are described in Register 7-1
through Register 7-31.
7.4 Interrupts Resources
Many useful resources related to Interrupts are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
7.4.1 KEY RESOURCES
•Section 32. “Interrupts (Part III)” (DS70214)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 92 © 2007-2012 Microchip Technology Inc.
7.5 CPU Registers
REGISTER 7-1: SR: CPU STATUS REGISTER(1)
R-0 R-0 R/C-0 R/C-0 R-0 R/C-0 R -0 R/W-0
OA OB SA SB OAB SAB DA DC
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
IPL<2:0>(2,3) RA N OV Z C
bit 7 bit 0
Legend:
C = Clear only bit R = Readable bit U = Unimplemented bit, read as ‘0’
S = Set only bit W = Writable bit -n = Value at POR
‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(2)
111 = CPU Interrupt Priority Level is 7 (15), user interrupts are disabled
110 = CPU Interrupt Priority Level is 6 (14)
101 = CPU Interrupt Priority Level is 5 (13)
100 = CPU Interrupt Priority Level is 4 (12)
011 = CPU Interrupt Priority Level is 3 (11)
010 = CPU Interrupt Priority Level is 2 (10)
001 = CPU Interrupt Priority Level is 1 (9)
000 = CPU Interrupt Priority Level is 0 (8)
Note 1: For complete register details, see Register 3-1.
2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority
Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when
IPL<3> = 1.
3: The IPL<2:0> Status bits are read-only when the NSTDIS bit (INTCON1<15>) = 1.
REGISTER 7-2: CORCON: CORE CONTROL REGISTER(1)
U-0 U-0 U-0 R/W-0 R/W-0 R-0 R-0 R-0
— — —USEDT DL<2:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R/W-0 R/W-0 R/W-0
SATA SATB SATDW ACCSAT IPL3(2) PSV RND IF
bit 7 bit 0
Legend: C = Clear only bit
R = Readable bit W = Writable bit -n = Value at POR ‘1’ = Bit is set
0’ = Bit is cleared ‘x = Bit is unknown U = Unimplemented bit, read as ‘0’
bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)
1 = CPU interrupt priority level is greater than 7
0 = CPU interrupt priority level is 7 or less
Note 1: For complete register details, see Register 3-2.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.
© 2007-2012 Microchip Technology Inc. DS70292G-page 93
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-3: INTCON1: INTERRUPT CONTROL REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
NSTDIS OVAERR OVBERR COVAERR COVBERR OVATE OVBTE COVTE
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
SFTACERR DIV0ERR DMACERR MATHERR ADDRERR STKERR OSCFAIL —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 NSTDIS: Interrupt Nesting Disable bit
1 = Interrupt nesting is disabled
0 = Interrupt nesting is enabled
bit 14 OVAERR: Accumulator A Overflow Trap Flag bit
1 = Trap was caused by overflow of Accumulator A
0 = Trap was not caused by overflow of Accumulator A
bit 13 OVBERR: Accumulator B Overflow Trap Flag bit
1 = Trap was caused by overflow of Accumulator B
0 = Trap was not caused by overflow of Accumulator B
bit 12 COVAERR: Accumulator A Catastrophic Overflow Trap Flag bit
1 = Trap was caused by catastrophic overflow of Accumulator A
0 = Trap was not caused by catastrophic overflow of Accumulator A
bit 11 COVBERR: Accumulator B Catastrophic Overflow Trap Flag bit
1 = Trap was caused by catastrophic overflow of Accumulator B
0 = Trap was not caused by catastrophic overflow of Accumulator B
bit 10 OVATE: Accumulator A Overflow Trap Enable bit
1 = Trap overflow of Accumulator A
0 = Trap disabled
bit 9 OVBTE: Accumulator B Overflow Trap Enable bit
1 = Trap overflow of Accumulator B
0 = Trap disabled
bit 8 COVTE: Catastrophic Overflow Trap Enable bit
1 = Trap on catastrophic overflow of Accumulator A or B enabled
0 = Trap disabled
bit 7 SFTACERR: Shift Accumulator Error Status bit
1 = Math error trap was caused by an invalid accumulator shift
0 = Math error trap was not caused by an invalid accumulator shift
bit 6 DIV0ERR: Arithmetic Error Status bit
1 = Math error trap was caused by a divide by zero
0 = Math error trap was not caused by a divide by zero
bit 5 DMACERR: DMA Controller Error Status bit
1 = DMA controller error trap has occurred
0 = DMA controller error trap has not occurred
bit 4 MATHERR: Arithmetic Error Status bit
1 = Math error trap has occurred
0 = Math error trap has not occurred
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 94 © 2007-2012 Microchip Technology Inc.
bit 3 ADDRERR: Address Error Trap Status bit
1 = Address error trap has occurred
0 = Address error trap has not occurred
bit 2 STKERR: Stack Error Trap Status bit
1 = Stack error trap has occurred
0 = Stack error trap has not occurred
bit 1 OSCFAIL: Oscillator Failure Trap Status bit
1 = Oscillator failure trap has occurred
0 = Oscillator failure trap has not occurred
bit 0 Unimplemented: Read as ‘0’
REGISTER 7-3: INTCON1: INTERRUPT CONTROL REGISTER 1 (CONTINUED)
© 2007-2012 Microchip Technology Inc. DS70292G-page 95
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-4: INTCON2: INTERRUPT CONTROL REGISTER 2
R/W-0 R-0 U-0 U-0 U-0 U-0 U-0 U-0
ALTIVT DISI — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — INT2EP INT1EP INT0EP
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ALTIVT: Enable Alternate Interrupt Vector Table bit
1 = Use alternate vector table
0 = Use standard (default) vector table
bit 14 DISI: DISI Instruction Status bit
1 = DISI instruction is active
0 = DISI instruction is not active
bit 13-3 Unimplemented: Read as ‘0’
bit 2 INT2EP: External Interrupt 2 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 1 INT1EP: External Interrupt 1 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 0 INT0EP: External Interrupt 0 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 96 © 2007-2012 Microchip Technology Inc.
REGISTER 7-5: IFS0: INTERRUPT FLAG STATUS REGISTER 0
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— DMA1IF AD1IF U1TXIF U1RXIF SPI1IF SPI1EIF T3IF
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
T2IF OC2IF IC2IF DMA0IF T1IF OC1IF IC1IF INT0IF
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 DMA1IF: DMA Channel 1 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 13 AD1IF: ADC1 Conversion Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 12 U1TXIF: UART1 Transmitter Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 11 U1RXIF: UART1 Receiver Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 10 SPI1IF: SPI1 Event Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 9 SPI1EIF: SPI1 Error Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 8 T3IF: Timer3 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 7 T2IF: Timer2 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 6 OC2IF: Output Compare Channel 2 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 5 IC2IF: Input Capture Channel 2 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 4 DMA0IF: DMA Channel 0 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 3 T1IF: Timer1 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
© 2007-2012 Microchip Technology Inc. DS70292G-page 97
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 2 OC1IF: Output Compare Channel 1 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 1 IC1IF: Input Capture Channel 1 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 0 INT0IF: External Interrupt 0 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
REGISTER 7-5: IFS0: INTERRUPT FLAG STATUS REGISTER 0 (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 98 © 2007-2012 Microchip Technology Inc.
REGISTER 7-6: IFS1: INTERRUPT FLAG STATUS REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U2TXIF U2RXIF INT2IF T5IF T4IF OC4IF OC3IF DMA2IF
bit 15 bit 8
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IC8IF IC7IF — INT1IF CNIF CMIF MI2C1IF SI2C1IF
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 U2TXIF: UART2 Transmitter Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 14 U2RXIF: UART2 Receiver Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 13 INT2IF: External Interrupt 2 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 12 T5IF: Timer5 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 11 T4IF: Timer4 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 10 OC4IF: Output Compare Channel 4 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 9 OC3IF: Output Compare Channel 3 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 8 DMA2IF: DMA Channel 2 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 7 IC8IF: Input Capture Channel 8 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 6 IC7IF: Input Capture Channel 7 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 5 Unimplemented: Read as ‘0’
bit 4 INT1IF: External Interrupt 1 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 3 CNIF: Input Change Notification Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
© 2007-2012 Microchip Technology Inc. DS70292G-page 99
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 2 CMIF: Comparator Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 1 MI2C1IF: I2C1 Master Events Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 0 SI2C1IF: I2C1 Slave Events Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
REGISTER 7-6: IFS1: INTERRUPT FLAG STATUS REGISTER 1 (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 100 © 2007-2012 Microchip Technology Inc.
REGISTER 7-7: IFS2: INTERRUPT FLAG STATUS REGISTER 2
U-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0
—DMA4IFPMPIF— — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —DMA3IFC1IF
(1) C1RXIF(1) SPI2IF SPI2EIF
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 DMA4IF: DMA Channel 4 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 13 PMPIF: Parallel Master Port Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 12-5 Unimplemented: Read as ‘0’
bit 4 DMA3IF: DMA Channel 3 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 3 C1IF: ECAN1 Event Interrupt Flag Status bit(1)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 2 C1RXIF: ECAN1 Receive Data Ready Interrupt Flag Status bit(1)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 1 SPI2IF: SPI2 Event Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 0 SPI2EIF: SPI2 Error Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
Note 1: Interrupts are disabled on devices without ECAN™ modules.
© 2007-2012 Microchip Technology Inc. DS70292G-page 101
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-8: IFS3: INTERRUPT FLAG STATUS REGISTER 3
U-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0
— RTCIF DMA5IF DCIIF DCIEIF — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 RTCIF: Real-Time Clock and Calendar Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 13 DMA5IF: DMA Channel 5 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 12 DCIIF: DCI Event Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 11 DCIEIF: DCI Error Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 10-0 Unimplemented: Read as ‘0’
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 102 © 2007-2012 Microchip Technology Inc.
REGISTER 7-9: IFS4: INTERRUPT FLAG STATUS REGISTER 4
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 U-0
DAC1LIF(2) DAC1RIF(2) — — — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
—C1TXIF
(1) DMA7IF DMA6IF CRCIF U2EIF U1EIF —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DAC1LIF: DAC Left Channel Interrupt Flag Status bit(2)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 14 DAC1RIF: DAC Right Channel Interrupt Flag Status bit(2)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 13-7 Unimplemented: Read as ‘0’
bit 6 C1TXIF: ECAN1 Transmit Data Request Interrupt Flag Status bit(1)
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 5 DMA7IF: DMA Channel 7 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 4 DMA6IF: DMA Channel 6 Data Transfer Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 3 CRCIF: CRC Generator Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 2 U2EIF: UART2 Error Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 1 U1EIF: UART1 Error Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 0 Unimplemented: Read as ‘0’
Note 1: Interrupts are disabled on devices without ECAN™ modules.
2: Interrupts are disabled on devices without Audio DAC modules.
© 2007-2012 Microchip Technology Inc. DS70292G-page 103
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-10: IEC0: INTERRUPT ENABLE CONTROL REGISTER 0
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— DMA1IE AD1IE U1TXIE U1RXIE SPI1IE SPI1EIE T3IE
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
T2IE OC2IE IC2IE DMA0IE T1IE OC1IE IC1IE INT0IE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 DMA1IE: DMA Channel 1 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13 AD1IE: ADC1 Conversion Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 12 U1TXIE: UART1 Transmitter Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 11 U1RXIE: UART1 Receiver Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 10 SPI1IE: SPI1 Event Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 9 SPI1EIE: SPI1 Error Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 8 T3IE: Timer3 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 7 T2IE: Timer2 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 6 OC2IE: Output Compare Channel 2 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 5 IC2IE: Input Capture Channel 2 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 DMA0IE: DMA Channel 0 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 T1IE: Timer1 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 104 © 2007-2012 Microchip Technology Inc.
bit 2 OC1IE: Output Compare Channel 1 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 1 IC1IE: Input Capture Channel 1 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 0 INT0IE: External Interrupt 0 Flag Status bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
REGISTER 7-10: IEC0: INTERRUPT ENABLE CONTROL REGISTER 0 (CONTINUED)
© 2007-2012 Microchip Technology Inc. DS70292G-page 105
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-11: IEC1: INTERRUPT ENABLE CONTROL REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
U2TXIE U2RXIE INT2IE T5IE T4IE OC4IE OC3IE DMA2IE
bit 15 bit 8
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IC8IE IC7IE — INT1IE CNIE CMIE MI2C1IE SI2C1IE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 U2TXIE: UART2 Transmitter Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 14 U2RXIE: UART2 Receiver Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13 INT2IE: External Interrupt 2 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 12 T5IE: Timer5 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 11 T4IE: Timer4 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 10 OC4IE: Output Compare Channel 4 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 9 OC3IE: Output Compare Channel 3 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 8 DMA2IE: DMA Channel 2 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 7 IC8IE: Input Capture Channel 8 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 6 IC7IE: Input Capture Channel 7 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 5 Unimplemented: Read as ‘0’
bit 4 INT1IE: External Interrupt 1 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 CNIE: Input Change Notification Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 106 © 2007-2012 Microchip Technology Inc.
bit 2 CMIE: Comparator Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 1 MI2C1IE: I2C1 Master Events Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 0 SI2C1IE: I2C1 Slave Events Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
REGISTER 7-11: IEC1: INTERRUPT ENABLE CONTROL REGISTER 1 (CONTINUED)
© 2007-2012 Microchip Technology Inc. DS70292G-page 107
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-12: IEC2: INTERRUPT ENABLE CONTROL REGISTER 2
U-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0
—DMA4IEPMPIE— — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —DMA3IEC1IE
(1) C1RXIE(1) SPI2IE SPI2EIE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 DMA4IE: DMA Channel 4 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13 PMPIE: Parallel Master Port Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 12-5 Unimplemented: Read as ‘0’
bit 4 DMA3IE: DMA Channel 3 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request has enabled
bit 3 C1IE: ECAN1 Event Interrupt Enable bit(1)
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 2 C1RXIE: ECAN1 Receive Data Ready Interrupt Enable bit(1)
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 1 SPI2IE: SPI2 Event Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 0 SPI2EIE: SPI2 Error Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
Note 1: Interrupts are disabled on devices without ECAN™ modules.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 108 © 2007-2012 Microchip Technology Inc.
REGISTER 7-13: IEC3: INTERRUPT ENABLE CONTROL REGISTER 3
U-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0
— RTCIE DMA5IE DCIIE DCIEIE — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 RTCIE: Real-Time Clock and Calendar Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13 DMA5IE: DMA Channel 5 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 12 DCIIE: DCI Event Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 11 DCIEIE: DCI Error Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 10-0 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 109
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-14: IEC4: INTERRUPT ENABLE CONTROL REGISTER 4
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 U-0
DAC1LIE(2) DAC1RIE(2) — — — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
—C1TXIE
(1) DMA7IE DMA6IE CRCIE U2EIE U1EIE —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DAC1LIE: DAC Left Channel Interrupt Enable bit(2)
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 14 DAC1RIE: DAC Right Channel Interrupt Enable bit(2)
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13-7 Unimplemented: Read as ‘0’
bit 6 C1TXIE: ECAN1 Transmit Data Request Interrupt Enable bit(1)
1 = Interrupt request occurred
0 = Interrupt request not occurred
bit 5 DMA7IE: DMA Channel 7 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 DMA6IE: DMA Channel 6 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 CRCIE: CRC Generator Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 2 U2EIE: UART2 Error Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 1 U1EIE: UART1 Error Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 0 Unimplemented: Read as ‘0’
Note 1: Interrupts are disabled on devices without ECAN™ modules.
2: Interrupts are disabled on devices without Audio DAC modules.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 110 © 2007-2012 Microchip Technology Inc.
REGISTER 7-15: IPC0: INTERRUPT PRIORITY CONTROL REGISTER 0
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— T1IP<2:0> —OC1IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—IC1IP<2:0>— INT0IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 T1IP<2:0>: Timer1 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 OC1IP<2:0>: Output Compare Channel 1 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 IC1IP<2:0>: Input Capture Channel 1 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 INT0IP<2:0>: External Interrupt 0 Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 111
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-16: IPC1: INTERRUPT PRIORITY CONTROL REGISTER 1
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— T2IP<2:0> —OC2IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—IC2IP<2:0>—DMA0IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 T2IP<2:0>: Timer2 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 OC2IP<2:0>: Output Compare Channel 2 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 IC2IP<2:0>: Input Capture Channel 2 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 DMA0IP<2:0>: DMA Channel 0 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 112 © 2007-2012 Microchip Technology Inc.
REGISTER 7-17: IPC2: INTERRUPT PRIORITY CONTROL REGISTER 2
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— U1RXIP<2:0> — SPI1IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— SPI1EIP<2:0> — T3IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 U1RXIP<2:0>: UART1 Receiver Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 SPI1IP<2:0>: SPI1 Event Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 SPI1EIP<2:0>: SPI1 Error Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 T3IP<2:0>: Timer3 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 113
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-18: IPC3: INTERRUPT PRIORITY CONTROL REGISTER 3
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — —DMA1IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—AD1IP<2:0>— U1TXIP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 DMA1IP<2:0>: DMA Channel 1 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 AD1IP<2:0>: ADC1 Conversion Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 U1TXIP<2:0>: UART1 Transmitter Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 114 © 2007-2012 Microchip Technology Inc.
REGISTER 7-19: IPC4: INTERRUPT PRIORITY CONTROL REGISTER 4
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— CNIP<2:0> — CMIP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— MI2C1IP<2:0> — SI2C1IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 CNIP<2:0>: Change Notification Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 CMIP<2:0>: Comparator Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 MI2C1IP<2:0>: I2C1 Master Events Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 SI2C1IP<2:0>: I2C1 Slave Events Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 115
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-20: IPC5: INTERRUPT PRIORITY CONTROL REGISTER 5
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—IC8IP<2:0>— IC7IP<2:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — — INT1IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 IC8IP<2:0>: Input Capture Channel 8 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 IC7IP<2:0>: Input Capture Channel 7 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7-3 Unimplemented: Read as ‘0’
bit 2-0 INT1IP<2:0>: External Interrupt 1 Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 116 © 2007-2012 Microchip Technology Inc.
REGISTER 7-21: IPC6: INTERRUPT PRIORITY CONTROL REGISTER 6
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— T4IP<2:0> —OC4IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— OC3IP<2:0> —DMA2IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 T4IP<2:0>: Timer4 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 OC4IP<2:0>: Output Compare Channel 4 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 OC3IP<2:0>: Output Compare Channel 3 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 DMA2IP<2:0>: DMA Channel 2 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 117
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-22: IPC7: INTERRUPT PRIORITY CONTROL REGISTER 7
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— U2TXIP<2:0> — U2RXIP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— INT2IP<2:0> — T5IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 U2TXIP<2:0>: UART2 Transmitter Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 U2RXIP<2:0>: UART2 Receiver Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 INT2IP<2:0>: External Interrupt 2 Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 T5IP<2:0>: Timer5 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 118 © 2007-2012 Microchip Technology Inc.
REGISTER 7-23: IPC8: INTERRUPT PRIORITY CONTROL REGISTER 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— C1IP<2:0>(1) — C1RXIP<2:0>(1)
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— SPI2IP<2:0> — SPI2EIP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 C1IP<2:0>: ECAN1 Event Interrupt Priority bits(1)
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 C1RXIP<2:0>: ECAN1 Receive Data Ready Interrupt Priority bits(1)
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 SPI2IP<2:0>: SPI2 Event Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 SPI2EIP<2:0>: SPI2 Error Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
Note 1: Interrupts are disabled on devices without ECAN™ modules.
© 2007-2012 Microchip Technology Inc. DS70292G-page 119
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-24: IPC9: INTERRUPT PRIORITY CONTROL REGISTER 9
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — —DMA3IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-3 Unimplemented: Read as ‘0’
bit 2-0 DMA3IP<2:0>: DMA Channel 3 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 120 © 2007-2012 Microchip Technology Inc.
REGISTER 7-25: IPC11: INTERRUPT PRIORITY CONTROL REGISTER 11
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — —DMA4IP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0
—PMPIP<2:0>— — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 DMA4IP<2:0>: DMA Channel 4 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 PMPIP<2:0>: Parallel Master Port Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3-0 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 121
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-26: IPC14: INTERRUPT PRIORITY CONTROL REGISTER 14
U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0
— DCIEIP<2:0> — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 DCIEIP<2:0>: DCI Error Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11-0 Unimplemented: Read as ‘0’
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 122 © 2007-2012 Microchip Technology Inc.
REGISTER 7-27: IPC15: INTERRUPT PRIORITY CONTROL REGISTER 15
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — — RTCIP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— DMA5IP<2:0> —DCIIP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 RTCIP<2:0>: Real-Time Clock and Calendar Interrupt Flag Status bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 DMA5IP<2:0>: DMA Channel 5 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3-0 DCIIP<2:0>: DCI Event Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 123
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-28: IPC16: INTERRUPT PRIORITY CONTROL REGISTER 16
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— CRCIP<2:0> — U2EIP<2:0>
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0
—U1EIP<2:0>— — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 CRCIP<2:0>: CRC Generator Error Interrupt Flag Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 U2EIP<2:0>: UART2 Error Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 U1EIP<2:0>: UART1 Error Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3-0 Unimplemented: Read as ‘0’
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 124 © 2007-2012 Microchip Technology Inc.
REGISTER 7-29: IPC17: INTERRUPT PRIORITY CONTROL REGISTER 17
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0
— — — — — C1TXIP<2:0>(1)
bit 15 bit 8
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
— DMA7IP<2:0> —DMA6IP<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 C1TXIP<2:0>: ECAN1 Transmit Data Request Interrupt Priority bits(1)
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7 Unimplemented: Read as ‘0’
bit 6-4 DMA7IP<2:0>: DMA Channel 7 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 3 Unimplemented: Read as ‘0’
bit 2-0 DMA6IP<2:0>: DMA Channel 6 Data Transfer Complete Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
Note 1: Interrupts are disabled on devices without ECAN™ modules.
© 2007-2012 Microchip Technology Inc. DS70292G-page 125
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 7-30: IPC19: INTERRUPT PRIORITY CONTROL REGISTER 19
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
— DAC1LIP<2:0>(1) — DAC1RIP<2:0>(1)
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 DAC1LIP<2:0>: DAC Left Channel Interrupt Flag Status bit(1)
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 11 Unimplemented: Read as ‘0’
bit 10-8 DAC1RIP<2:0>: DAC Right Channel Interrupt Flag Status bit(1)
111 = Interrupt is priority 7 (highest priority interrupt)
•
•
•
001 = Interrupt is priority 1
000 = Interrupt source is disabled
bit 7-0 Unimplemented: Read as ‘0’
Note 1: Interrupts are disabled on devices without Audio DAC modules.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 126 © 2007-2012 Microchip Technology Inc.
REGISTER 7-31: INTTREG: INTERRUPT CONTROL AND STATUS REGISTER
U-0 U-0 U-0 U-0 R-0 R-0 R-0 R-0
— — — —ILR<3:0>
bit 15 bit 8
U-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
— VECNUM<6:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 ILR<3:0>: New CPU Interrupt Priority Level bits
1111 = CPU Interrupt Priority Level is 15
•
•
•
0001 = CPU Interrupt Priority Level is 1
0000 = CPU Interrupt Priority Level is 0
bit 7 Unimplemented: Read as ‘0’
bit 6-0 VECNUM<6:0>: Vector Number of Pending Interrupt bits
0111111 = Interrupt Vector pending is number 135
•
•
•
0000001 = Interrupt Vector pending is number 9
0000000 = Interrupt Vector pending is number 8
© 2007-2012 Microchip Technology Inc. DS70292G-page 127
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
7.6 Interrupt Setup Procedures
7.6.1 INITIALIZATION
To configure an interrupt source at initialization:
1. Set the NSTDIS bit (INTCON1<15>) if nested
interrupts are not desired.
2. Select the user-assigned priority level for the
interrupt source by writing the control bits in the
appropriate IPCx register. The priority level
depends on the specific application and type of
interrupt source. If multiple priority levels are not
desired, the IPCx register control bits for all
enabled interrupt sources can be programmed
to the same non-zero value.
3. Clear the interrupt flag status bit associated with
the peripheral in the associated IFSx register.
4. Enable the interrupt source by setting the inter-
rupt enable control bit associated with the
source in the appropriate IECx register.
7.6.2 INTERRUPT SERVICE ROUTINE
The method used to declare an ISR and initialize the
IVT with the correct vector address depends on the
programming language (C or assembler) and the
language development tool suite used to develop the
application.
In general, the user application must clear the interrupt
flag in the appropriate IFSx register for the source of
interrupt that the ISR handles. Otherwise, the program
re-enters the ISR immediately after exiting the routine.
If the ISR is coded in assembly language, it must be
terminated using a RETFIE instruction to unstack the
saved PC value, SRL value and old CPU priority level.
7.6.3 TRAP SERVICE ROUTINE
A Trap Service Routine (TSR) is coded like an ISR,
except that the appropriate trap status flag in the
INTCON1 register must be cleared to avoid re-entry
into the TSR.
7.6.4 INTERRUPT DISABLE
All user interrupts can be disabled using this
procedure:
1. Push the current SR value onto the software
stack using the PUSH instruction.
2. Force the CPU to priority level 7 by inclusive
ORing the value OEh with SRL.
To enable user interrupts, the POP instruction can be
used to restore the previous SR value.
The DISI instruction provides a convenient way to
disable interrupts of priority levels 1-6 for a fixed period
of time. Level 7 interrupt sources are not disabled by
the DISI instruction.
Note: At a device Reset, the IPCx registers are
initialized such that all user interrupt
sources are assigned to priority level 4. Note: Only user interrupts with a priority level of
7 or lower can be disabled. Trap sources
(level 8-level 15) cannot be disabled.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 128 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 129
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
8.0 DIRECT MEMORY ACCESS
(DMA)
Direct Memory Access (DMA) is a very efficient
mechanism of copying data between peripheral SFRs
(e.g., UART Receive register, Input Capture 1 buffer),
and buffers or variables stored in RAM, with minimal
CPU intervention. The DMA controller can
automatically copy entire blocks of data without
requiring the user software to read or write the
peripheral Special Function Registers (SFRs) every
time a peripheral interrupt occurs. The DMA controller
uses a dedicated bus for data transfers and therefore,
does not steal cycles from the code execution flow of
the CPU. To exploit the DMA capability, the
corresponding user buffers or variables must be
located in DMA RAM.
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 peripherals that
can utilize DMA are listed in Table 8-1.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 38. “Direct Memory
Access (DMA) (Part III)” (DS70215) of
the “dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
TABLE 8-1: DMA CHANNEL TO PERIPHERAL ASSOCIATIONS
Peripheral to DMA Association DMAxREQ Register
IRQSEL<6:0> Bits
DMAxPAD Register
Values to Read from
Peripheral
DMAxPAD Register
Values to Write to
Peripheral
INT0 – External Interrupt 0 0000000 ——
IC1 – Input Capture 1 0000001 0x0140 (IC1BUF) —
OC1 – Output Compare 1 Data 0000010 — 0x0182 (OC1R)
OC1 – Output Compare 1 Secondary Data 0000010 — 0x0180 (OC1RS)
IC2 – Input Capture 2 0000101 0x0144 (IC2BUF) —
OC2 – Output Compare 2 Data 0000110 — 0x0188 (OC2R)
OC2 – Output Compare 2 Secondary Data 0000110 — 0x0186 (OC2RS)
TMR2 – Timer2 0000111 ——
TMR3 – Timer3 0001000 ——
SPI1 – Transfer Done 0001010 0x0248 (SPI1BUF) 0x0248 (SPI1BUF)
UART1RX – UART1 Receiver 0001011 0x0226 (U1RXREG) —
UART1TX – UART1 Transmitter 0001100 — 0x0224 (U1TXREG)
ADC1 – ADC1 convert done 0001101 0x0300 (ADC1BUF0) —
UART2RX – UART2 Receiver 0011110 0x0236 (U2RXREG) —
UART2TX – UART2 Transmitter 0011111 — 0x0234 (U2TXREG)
SPI2 – Transfer Done 0100001 0x0268 (SPI2BUF) 0x0268 (SPI2BUF)
ECAN1 – RX Data Ready 0100010 0x0440 (C1RXD) —
PMP – Master Data Transfer 0101101 0x0608 (PMDIN1) 0x0608 (PMDIN1)
ECAN1 – TX Data Request 1000110 — 0x0442 (C1TXD)
DCI – Codec Transfer Done 0111100 0x0290 (RXBUF0) 0x0298 (TXBUF0)
DAC1 – Right Data Output 1001110 — 0x03F6 (DAC1RDAT)
DAC2 – Left Data Output 1001111 — 0x03F8 (DAC1LDAT)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 130 © 2007-2012 Microchip Technology Inc.
The DMA controller features eight identical data
transfer channels.
Each channel has its own set of control and status
registers. Each DMA channel can be configured to
copy data either from buffers stored in dual port DMA
RAM to peripheral SFRs, or from peripheral SFRs to
buffers in DMA RAM.
The DMA controller supports the following features:
• Eight DMA channels
• Register Indirect With Post-increment Addressing
mode
• Register Indirect Without Post-increment
Addressing mode
• Peripheral Indirect Addressing mode (peripheral
generates destination address)
• CPU interrupt after half or full block transfer
complete
• Byte or word transfers
• Fixed priority channel arbitration
• Manual (software) or Automatic (peripheral DMA
requests) transfer initiation
• One-Shot or Auto-Repeat block transfer modes
• Ping-Pong mode (automatic switch between two
DPSRAM start addresses after each block trans-
fer complete)
• DMA request for each channel can be selected
from any supported interrupt source
• Debug support features
For each DMA channel, a DMA interrupt request is
generated when a block transfer is complete.
Alternatively, an interrupt can be generated when half of
the block has been filled.
FIGURE 8-1: TOP LEVEL SYSTEM ARCHITECTURE USING A DEDICATED TRANSACTION BUS
CPU
SRAM DMA RAM
CPU Peripheral DS Bus
Peripheral 3
DMA
Peripheral
Non-DMA
SRAM X-Bus
PORT 2
PORT 1
Peripheral 1
DMA
Ready
Peripheral 2
DMA
Ready
Ready
Ready
DMA DS Bus
CPU DMA
CPU DMA CPU DMA
Peripheral Indirect Address
DMA
Control
DMA Controller
DMA
Channels
Note: CPU and DMA address buses are not shown for clarity.
© 2007-2012 Microchip Technology Inc. DS70292G-page 131
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
8.1 DMA Resources
Many useful resources related to the CPU are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
8.1.1 KEY RESOURCES
•Section 38. “Direct Memory Access (DMA)
(Part III)” (DS70215)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
8.2 DMAC Registers
Each DMAC Channel x (x = 0, 1, 2, 3, 4, 5, 6 or 7)
contains the following registers:
• A 16-bit DMA Channel Control register
(DMAxCON)
• A 16-bit DMA Channel IRQ Select register
(DMAxREQ)
• A 16-bit DMA RAM Primary Start Address register
(DMAxSTA)
• A 16-bit DMA RAM Secondary Start Address
register (DMAxSTB)
• A 16-bit DMA Peripheral Address register
(DMAxPAD)
• A 10-bit DMA Transfer Count register (DMAxCNT)
An additional pair of status registers, DMACS0 and
DMACS1, are common to all DMAC channels.
DMACS0 contains the DMA RAM and SFR write colli-
sion flags, XWCOLx and PWCOLx, respectively.
DMACS1 indicates DMA channel and Ping-Pong mode
status.
The DMAxCON, DMAxREQ, DMAxPAD and
DMAxCNT are all conventional read/write registers.
Reads of DMAxSTA or DMAxSTB reads the contents
of the DMA RAM Address register. Writes to DMAx-
STA or DMAxSTB write to the registers. This allows
the user to determine the DMA buffer pointer value
(address) at any time.
The interrupt flags (DMAxIF) are located in an IFSx
register in the interrupt controller. The corresponding
interrupt enable control bits (DMAxIE) are located in
an IECx register in the interrupt controller, and the cor-
responding interrupt priority control bits (DMAxIP) are
located in an IPCx register in the interrupt controller.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 132 © 2007-2012 Microchip Technology Inc.
8.3 DMA Control Registers
REGISTER 8-1: DMAxCON: DMA CHANNEL x CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0
CHEN SIZE DIR HALF NULLW — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0
——AMODE<1:0>—— MODE<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CHEN: Channel Enable bit
1 = Channel enabled
0 = Channel disabled
bit 14 SIZE: Data Transfer Size bit
1 = Byte
0 = Word
bit 13 DIR: Transfer Direction bit (source/destination bus select)
1 = Read from DMA RAM address, write to peripheral address
0 = Read from peripheral address, write to DMA RAM address
bit 12 HALF: Early Block Transfer Complete Interrupt Select bit
1 = Initiate block transfer complete interrupt when half of the data has been moved
0 = Initiate block transfer complete interrupt when all of the data has been moved
bit 11 NULLW: Null Data Peripheral Write Mode Select bit
1 = Null data write to peripheral in addition to DMA RAM write (DIR bit must also be clear)
0 = Normal operation
bit 10-6 Unimplemented: Read as ‘0’
bit 5-4 AMODE<1:0>: DMA Channel Operating Mode Select bits
11 = Reserved (acts as Peripheral Indirect Addressing mode)
10 = Peripheral Indirect Addressing mode
01 = Register Indirect without Post-Increment mode
00 = Register Indirect with Post-Increment mode
bit 3-2 Unimplemented: Read as ‘0’
bit 1-0 MODE<1:0>: DMA Channel Operating Mode Select bits
11 = One-Shot, Ping-Pong modes enabled (one block transfer from/to each DMA RAM buffer)
10 = Continuous, Ping-Pong modes enabled
01 = One-Shot, Ping-Pong modes disabled
00 = Continuous, Ping-Pong modes disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 133
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 8-2: DMAxREQ: DMA CHANNEL x IRQ SELECT REGISTER
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
FORCE(1) — — — — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— IRQSEL6<6:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FORCE: Force DMA Transfer bit(1)
1 = Force a single DMA transfer (Manual mode)
0 = Automatic DMA transfer initiation by DMA request
bit 14-7 Unimplemented: Read as ‘0’
bit 6-0 IRQSEL<6:0>: DMA Peripheral IRQ Number Select bits(2)
1111111 = DMAIRQ127 selected to be Channel DMAREQ
.
.
.
0000000 = DMAIRQ0 selected to be Channel DMAREQ
Note 1: The FORCE bit cannot be cleared by the user. The FORCE bit is cleared by hardware when the forced
DMA transfer is complete.
2: Refer to Tab le 7 -1 for a complete listing of IRQ numbers for all interrupt sources.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 134 © 2007-2012 Microchip Technology Inc.
REGISTER 8-3: DMAxSTA: DMA CHANNEL x RAM START ADDRESS REGISTER A(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STA<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STA<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 STA<15:0>: Primary DMA RAM Start Address bits (source or destination)
Note 1: A read of this address register returns the current contents of the DMA RAM Address register, not the con-
tents written to STA<15:0>. If the channel is enabled (i.e., active), writes to this register may result in
unpredictable behavior of the DMA channel and should be avoided.
REGISTER 8-4: DMAxSTB: DMA CHANNEL x RAM START ADDRESS REGISTER B(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STB<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STB<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 STB<15:0>: Secondary DMA RAM Start Address bits (source or destination)
Note 1: A read of this address register returns the current contents of the DMA RAM Address register, not the con-
tents written to STB<15:0>. If the channel is enabled (i.e., active), writes to this register may result in
unpredictable behavior of the DMA channel and should be avoided.
© 2007-2012 Microchip Technology Inc. DS70292G-page 135
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 8-5: DMAxPAD: DMA CHANNEL x PERIPHERAL ADDRESS REGISTER(1)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PAD<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PAD<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 PAD<15:0>: Peripheral Address Register bits
Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the
DMA channel and should be avoided.
REGISTER 8-6: DMAxCNT: DMA CHANNEL x TRANSFER COUNT REGISTER(1)
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — CNT<9:8>(2)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CNT<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 CNT<9:0>: DMA Transfer Count Register bits(2)
Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the
DMA channel and should be avoided.
2: Number of DMA transfers = CNT<9:0> + 1.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 136 © 2007-2012 Microchip Technology Inc.
REGISTER 8-7: DMACS0: DMA CONTROLLER STATUS REGISTER 0
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
PWCOL7 PWCOL6 PWCOL5 PWCOL4 PWCOL3 PWCOL2 PWCOL1 PWCOL0
bit 15 bit 8
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
XWCOL7 XWCOL6 XWCOL5 XWCOL4 XWCOL3 XWCOL2 XWCOL1 XWCOL0
bit 7 bit 0
Legend: C = Clear only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 PWCOL7: Channel 7 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 14 PWCOL6: Channel 6 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 13 PWCOL5: Channel 5 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 12 PWCOL4: Channel 4 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 11 PWCOL3: Channel 3 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 10 PWCOL2: Channel 2 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 9 PWCOL1: Channel 1 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 8 PWCOL0: Channel 0 Peripheral Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 7 XWCOL7: Channel 7 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 6 XWCOL6: Channel 6 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 5 XWCOL5: Channel 5 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 4 XWCOL4: Channel 4 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
© 2007-2012 Microchip Technology Inc. DS70292G-page 137
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 3 XWCOL3: Channel 3 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 2 XWCOL2: Channel 2 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 1 XWCOL1: Channel 1 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
bit 0 XWCOL0: Channel 0 DMA RAM Write Collision Flag bit
1 = Write collision detected
0 = No write collision detected
REGISTER 8-7: DMACS0: DMA CONTROLLER STATUS REGISTER 0 (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 138 © 2007-2012 Microchip Technology Inc.
REGISTER 8-8: DMACS1: DMA CONTROLLER STATUS REGISTER 1
U-0 U-0 U-0 U-0 R-1 R-1 R-1 R-1
— — — — LSTCH<3:0>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 LSTCH<3:0>: Last DMA Channel Active bits
1111 = No DMA transfer has occurred since system Reset
1110-1000 = Reserved
0111 = Last data transfer was by DMA Channel 7
0110 = Last data transfer was by DMA Channel 6
0101 = Last data transfer was by DMA Channel 5
0100 = Last data transfer was by DMA Channel 4
0011 = Last data transfer was by DMA Channel 3
0010 = Last data transfer was by DMA Channel 2
0001 = Last data transfer was by DMA Channel 1
0000 = Last data transfer was by DMA Channel 0
bit 7 PPST7: Channel 7 Ping-Pong Mode Status Flag bit
1 = DMA7STB register selected
0 = DMA7STA register selected
bit 6 PPST6: Channel 6 Ping-Pong Mode Status Flag bit
1 = DMA6STB register selected
0 = DMA6STA register selected
bit 5 PPST5: Channel 5 Ping-Pong Mode Status Flag bit
1 = DMA5STB register selected
0 = DMA5STA register selected
bit 4 PPST4: Channel 4 Ping-Pong Mode Status Flag bit
1 = DMA4STB register selected
0 = DMA4STA register selected
bit 3 PPST3: Channel 3 Ping-Pong Mode Status Flag bit
1 = DMA3STB register selected
0 = DMA3STA register selected
bit 2 PPST2: Channel 2 Ping-Pong Mode Status Flag bit
1 = DMA2STB register selected
0 = DMA2STA register selected
bit 1 PPST1: Channel 1 Ping-Pong Mode Status Flag bit
1 = DMA1STB register selected
0 = DMA1STA register selected
bit 0 PPST0: Channel 0 Ping-Pong Mode Status Flag bit
1 = DMA0STB register selected
0 = DMA0STA register selected
© 2007-2012 Microchip Technology Inc. DS70292G-page 139
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 8-9: DSADR: MOST RECENT DMA RAM ADDRESS
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
DSADR<15:8>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
DSADR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DSADR<15:0>: Most Recent DMA RAM Address Accessed by DMA Controller bits
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 140 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 141
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
9.0 OSCILLATOR CONFIGURATION
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 oscillator system
provides:
• External and internal oscillator options as clock
sources
• An on-chip Phase-Locked Loop (PLL) to scale the
internal operating frequency to the required
system clock frequency
• An internal FRC oscillator that can also be used
with the PLL, thereby allowing full-speed operation
without any external clock generation hardware
• Clock switching between various clock sources
• Programmable clock postscaler for system power
savings
• A Fail-Safe Clock Monitor (FSCM) that detects
clock failure and takes fail-safe measures
• An Oscillator Control register (OSCCON)
• Non-volatile Configuration bits for main oscillator
selection
• An auxiliary crystal oscillator for Audio DAC
A simplified diagram of the oscillator system is shown
in Figure 9-1.
FIGURE 9-1: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 OSCILLATOR SYSTEM DIAGRAM
Note 1: This data sheet summarizes the
features of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 39. “Oscillator
(Part III)” (DS70216) of the “dsPIC33F/
PIC24H Family Reference Manual”,
which is available from the Microchip
website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Secondary Oscillator
LPOSCEN
SOSCO
SOSCI
Timer1
XTPLL, HSPLL,
XT, HS, EC
FRCDIV<2:0>
WDT, PWRT,
FSCM
FRCDIVN
SOSC
FRCDIV16
ECPLL, FRCPLL
NOSC<2:0> FNOSC<2:0>
Reset
FRC
Oscillator
LPRC
Oscillator
DOZE<2:0>
S3
S1
S2
S1/S3
S7
S6
FRC
LPRC S0
S5
S4
÷16
Clock Switch
S7
Clock Fail
÷2
TUN<5:0>
PLL FCY(3)
FOSC
FRCDIV
DOZE
Note 1: See Figure 9-2 for PLL details.
2: If the Oscillator is used with XT or HS modes, an extended parallel resistor with the value of 1 MΩ must be connected.
3: The term FP refers to the clock source for all the peripherals, while FCY refers to the clock source for the CPU. Throughout
this document FCY and FP are used interchangeably, except in the case of Doze mode. FP and FCY will be different when
Doze mode is used in any ratio other than 1:1, which is the default.
÷N ACLK
POSCCLK
Auxiliary Oscillator
SELACK APSTSCLR<2:0>
DAC
FOSC(1)
AOSCCLK
AOSCMD<1:0>
ASRCSEL
FOSC(1)
POSCCLK
OSC2
OSC1 Primary Oscillator
R(2)
POSCMD<1:0>
FP(3)
3.5 MHz ≤ AUX_OSC_FIN ≤ 10 MHz
1
0
0
1
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 142 © 2007-2012 Microchip Technology Inc.
9.1 CPU Clocking System
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices provide
seven system clock options:
• Fast RC (FRC) Oscillator
• FRC Oscillator with Phase-Locked Loop (PLL)
• Primary (XT, HS or EC) Oscillator
• Primary Oscillator with PLL
• Secondary (LP) Oscillator
• Low-Power RC (LPRC) Oscillator
• FRC Oscillator with postscaler
9.1.1 SYSTEM CLOCK SOURCES
The Fast RC (FRC) internal oscillator runs at a nominal
frequency of 7.37 MHz. User software can tune the
FRC frequency. User software can optionally specify a
factor (ranging from 1:2 to 1:256) by which the FRC
clock frequency is divided. This factor is selected using
the FRCDIV<2:0> bits (CLKDIV<10:8>).
The primary oscillator can use one of the following as
its clock source:
• Crystal (XT): Crystals and ceramic resonators in
the range of 3 MHz to 10 MHz. The crystal is
connected to the OSC1 and OSC2 pins.
• High-Speed Crystal (HS): Crystals in the range of
10 MHz to 40 MHz. The crystal is connected to
the OSC1 and OSC2 pins.
• External Clock (EC): External clock signal is
directly applied to the OSC1 pin.
The secondary (LP) oscillator is designed for low power
and uses a 32.768 kHz crystal or ceramic resonator.
The LP oscillator uses the SOSCI and SOSCO pins.
The Low-Power RC (LPRC) internal oscIllator runs at a
nominal frequency of 32.768 kHz. It is also used as a
reference clock by the Watchdog Timer (WDT) and
Fail-Safe Clock Monitor (FSCM).
The clock signals generated by the FRC and primary
oscillators can be optionally applied to an on-chip PLL
to provide a wide range of output frequencies for device
operation. PLL configuration is described in
Section 9.1.4 “PLL Configuration”.
The FRC frequency depends on the FRC accuracy
(see Table 30-19) and the value of the FRC Oscillator
Tuning register (see Register 9-4).
9.1.2 SYSTEM CLOCK SELECTION
The oscillator source used at a device Power-on
Reset event is selected using Configuration bit
settings. The oscillator Configuration bit settings are
located in the Configuration registers in the program
memory. (Refer to Section 27.1 “Configuration
Bits” for further details.) The Initial Oscillator
Selection Configuration bits, FNOSC<2:0>
(FOSCSEL<2:0>), and the Primary Oscillator Mode
Select Configuration bits, POSCMD<1:0>
(FOSC<1:0>), select the oscillator source that is used
at a Power-on Reset. The FRC primary oscillator is
the default (unprogrammed) selection.
The Configuration bits allow users to choose among 12
different clock modes, shown in Ta b l e 9 - 1 .
The output of the oscillator (or the output of the PLL if
a PLL mode has been selected) FOSC is divided by 2 to
generate the device instruction clock (FCY) and
peripheral clock time base (FP). FCY defines the
operating speed of the device, and speeds up to 40
MHz are supported by the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 architecture.
Instruction execution speed or device operating
frequency, FCY, is given by:
EQUATION 9-1: DEVICE OPERATING
FREQUENCY
9.1.3 AUXILIARY OSCILLATOR
The Auxiliary Oscillator (AOSC) can be used for periph-
erals that need to operate at a frequency unrelated to
the system clock such as a Digital-to-Analog Converter
(DAC).
The Auxiliary Oscillator can use one of the following as
its clock source:
• Crystal (XT): Crystal and ceramic resonators in
the range of 3 MHz to 10 MHz. The crystal is
connected to the SOCI and SOSCO pins.
• High-Speed Crystal (HS): Crystals in the range of
10 to 40 MHz. The crystal is connected to the
SOSCI and SOSCO pins.
• External Clock (EC): External clock signal up to
64 MHz. The external clock signal is directly
applied to SOSCI pin.
FCY FOSC
2
-------------=
© 2007-2012 Microchip Technology Inc. DS70292G-page 143
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
9.1.4 PLL CONFIGURATION
The primary oscillator and internal FRC oscillator can
optionally use an on-chip PLL to obtain higher speeds
of operation. The PLL provides significant flexibility in
selecting the device operating speed. A block diagram
of the PLL is shown in Figure 9-2.
The output of the primary oscillator or FRC, denoted as
‘FIN’, is divided down by a prescale factor (N1) of 2, 3,
... or 33 before being provided to the PLL’s Voltage
Controlled Oscillator (VCO). The input to the VCO must
be selected in the range of 0.8 MHz to 8 MHz. The
prescale factor ‘N1’ is selected using the
PLLPRE<4:0> bits (CLKDIV<4:0>).
The PLL Feedback Divisor, selected using the
PLLDIV<8:0> bits (PLLFBD<8:0>), provides a factor ‘M,’
by which the input to the VCO is multiplied. This factor
must be selected such that the resulting VCO output
frequency is in the range of 100 MHz to 200 MHz.
The VCO output is further divided by a postscale factor
‘N2.’ This factor is selected using the PLLPOST<1:0>
bits (CLKDIV<7:6>). ‘N2’ can be either 2, 4 or 8, and
must be selected such that the PLL output frequency
(FOSC) is in the range of 12.5 MHz to 80 MHz, which
generates device operating speeds of 6.25-40 MIPS.
For a primary oscillator or FRC oscillator, output ‘FIN’,
the PLL output ‘FOSC’ is given by:
EQUATION 9-2: FOSC CALCULATION
For example, suppose a 10 MHz crystal is being used
with the selected oscillator mode of XT with PLL.
• If PLLPRE<4:0> = 0, then N1 = 2. This yields a
VCO input of 10/2 = 5 MHz, which is within the
acceptable range of 0.8-8 MHz.
• If PLLDIV<8:0> = 0x1E, then M = 32. This yields a
VCO output of 5 x 32 = 160 MHz, which is within
the 100-200 MHz ranged needed.
• If PLLPOST<1:0> = 0, then N2 = 2. This provides
a Fosc of 160/2 = 80 MHz. The resultant device
operating speed is 80/2 = 40 MIPS.
EQUATION 9-3: XT WITH PLL MODE
EXAMPLE
FIGURE 9-2: dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 PLL BLOCK DIAGRAM
FOSC FIN M
N1N2•
---------------------
⎝⎠
⎛⎞
•=
FCY FOSC
2
------------- 1
2
---10000000 32•
22•
------------------------------------
⎝⎠
⎛⎞
40MIPS===
0.8-8.0 MHz(1) 100-200 MHz(1)
Divide by
2, 4, 8
Divide by
2-513
Divide by
2-33
Source (Crystal, External Clock PLLPRE XVCO
PLLDIV
PLLPOST
or Internal RC)
12.5-80 MHz
(1)
FOSC
Note 1: This frequency range must be satisfied at all times.
N1
M
N2
FVCO
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 144 © 2007-2012 Microchip Technology Inc.
TABLE 9-1: CONFIGURATION BIT VALUES FOR CLOCK SELECTION
9.2 Oscillator Resources
Many useful resources related to the Oscillator are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
9.2.1 KEY RESOURCES
•Section 39. “Oscillator (Part III)” (DS70216)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Oscillator Mode Oscillator Source POSCMD<1:0> FNOSC<2:0> See
Note
Fast RC Oscillator with Divide-by-N
(FRCDIVN)
Internal xx 111 1, 2
Fast RC Oscillator with Divide-by-16
(FRCDIV16)
Internal xx 110 1
Low-Power RC Oscillator (LPRC) Internal xx 101 1
Secondary (Timer1) Oscillator (SOSC) Secondary xx 100 1
Primary Oscillator (HS) with PLL
(HSPLL)
Primary 10 011 —
Primary Oscillator (XT) with PLL
(XTPLL)
Primary 01 011 —
Primary Oscillator (EC) with PLL
(ECPLL)
Primary 00 011 1
Primary Oscillator (HS) Primary 10 010 —
Primary Oscillator (XT) Primary 01 010 —
Primary Oscillator (EC) Primary 00 010 1
Fast RC Oscillator with PLL (FRCPLL) Internal xx 001 1
Fast RC Oscillator (FRC) Internal xx 000 1
Note 1: OSC2 pin function is determined by the OSCIOFNC Configuration bit.
2: This is the default oscillator mode for an unprogrammed (erased) device.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 145
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
9.3 Oscillator Control Registers
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER(1,3)
U-0 R-0 R-0 R-0 U-0 R/W-y R/W-y R/W-y
— COSC<2:0> — NOSC<2:0>(2)
bit 15 bit 8
R/W-0 R/W-0 R-0 U-0 R/C-0 U-0 R/W-0 R/W-0
CLKLOCK IOLOCK LOCK —CF — LPOSCEN OSWEN
bit 7 bit 0
Legend: y = Value set from Configuration bits on POR C = Clear only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 COSC<2:0>: Current Oscillator Selection bits (read-only)
111 = Fast RC oscillator (FRC) with Divide-by-n
110 = Fast RC oscillator (FRC) with Divide-by-16
101 = Low-Power RC oscillator (LPRC)
100 = Secondary oscillator (SOSC)
011 = Primary oscillator (XT, HS, EC) with PLL
010 = Primary oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with divide-by-N and PLL (FRCDIVN + PLL)
000 = Fast RC oscillator (FRC)
bit 11 Unimplemented: Read as ‘0’
bit 10-8 NOSC<2:0>: New Oscillator Selection bits(2)
111 = Fast RC oscillator (FRC) with Divide-by-n
110 = Fast RC oscillator (FRC) with Divide-by-16
101 = Low-Power RC oscillator (LPRC)
100 = Secondary oscillator (SOSC)
011 = Primary oscillator (XT, HS, EC) with PLL
010 = Primary oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with divide-by-N and PLL (FRCDIVN + PLL)
000 = Fast RC oscillator (FRC)
bit 7 CLKLOCK: Clock Lock Enable bit
If clock switching is enabled and FSCM is disabled, FCKSM<1:0>(FOSC<7:6>) = 0b01
1 = Clock switching is disabled, system clock source is locked
0 = Clock switching is enabled, system clock source can be modified by clock switching
bit 6 IOLOCK: Peripheral Pin Select Lock bit
1 = Peripherial pin select is locked, write to peripheral pin select registers not allowed
0 = Peripherial pin select is not locked, write to peripheral pin select registers allowed
bit 5 LOCK: PLL Lock Status bit (read-only)
1 = Indicates that PLL is in lock, or PLL start-up timer is satisfied
0 = Indicates that PLL is out of lock, start-up timer is in progress or PLL is disabled
bit 4 Unimplemented: Read as ‘0’
Note 1: Writes to this register require an unlock sequence. Refer to Section 39. “Oscillator (Part III)” (DS70216)
in the “dsPIC33F/PIC24H Family Reference Manual” (available from the Microchip website) for details.
2: Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.
This applies to clock switches in either direction. In these instances, the application must switch to FRC
mode as a transition clock source between the two PLL modes.
3: This register is reset only on a Power-on Reset (POR).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 146 © 2007-2012 Microchip Technology Inc.
bit 3 CF: Clock Fail Detect bit (read/clear by application)
1 = FSCM has detected clock failure
0 = FSCM has not detected clock failure
bit 2 Unimplemented: Read as ‘0’
bit 1 LPOSCEN: Secondary (LP) Oscillator Enable bit
1 = Enable secondary oscillator
0 = Disable secondary oscillator
bit 0 OSWEN: Oscillator Switch Enable bit
1 = Request oscillator switch to selection specified by NOSC<2:0> bits
0 = Oscillator switch is complete
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER(1,3) (CONTINUED)
Note 1: Writes to this register require an unlock sequence. Refer to Section 39. “Oscillator (Part III)” (DS70216)
in the “dsPIC33F/PIC24H Family Reference Manual” (available from the Microchip website) for details.
2: Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.
This applies to clock switches in either direction. In these instances, the application must switch to FRC
mode as a transition clock source between the two PLL modes.
3: This register is reset only on a Power-on Reset (POR).
© 2007-2012 Microchip Technology Inc. DS70292G-page 147
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 9-2: CLKDIV: CLOCK DIVISOR REGISTER(2)
R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0
ROI DOZE<2:0> DOZEN(1) FRCDIV<2:0>
bit 15 bit 8
R/W-0 R/W-1 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PLLPOST<1:0> — PLLPRE<4:0>
bit 7 bit 0
Legend: y = Value set from Configuration bits on POR
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ROI: Recover on Interrupt bit
1 = Interrupts clears the DOZEN bit and the processor clock/peripheral clock ratio is set to 1:1
0 = Interrupts have no effect on the DOZEN bit
bit 14-12 DOZE<2:0>: Processor Clock Reduction Select bits
111 = FCY/128
110 = FCY/64
101 = FCY/32
100 = FCY/16
011 = FCY/8 (default)
010 = FCY/4
001 = FCY/2
000 = FCY/1
bit 11 DOZEN: Doze Mode Enable bit(1)
1 = DOZE<2:0> field specifies the ratio between the peripheral clocks and the processor clocks
0 = Processor clock/peripheral clock ratio forced to 1:1
bit 10-8 FRCDIV<2:0>: Internal Fast RC Oscillator Postscaler bits
111 = FRC divide by 256
110 = FRC divide by 64
101 = FRC divide by 32
100 = FRC divide by 16
011 = FRC divide by 8
010 = FRC divide by 4
001 = FRC divide by 2
000 = FRC divide by 1 (default)
bit 7-6 PLLPOST<1:0>: PLL VCO Output Divider Select bits (also denoted as ‘N2’, PLL postscaler)
11 = Output/8
10 = Reserved
01 = Output/4 (default)
00 = Output/2
bit 5 Unimplemented: Read as ‘0’
bit 4-0 PLLPRE<4:0>: PLL Phase Detector Input Divider bits (also denoted as ‘N1’, PLL prescaler)
11111 = Input/33
•
•
•
00000 = Input/2 (default)
00001 = Input/3
Note 1: This bit is cleared when the ROI bit is set and an interrupt occurs.
2: This register is reset only on a Power-on Reset (POR).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 148 © 2007-2012 Microchip Technology Inc.
REGISTER 9-3: PLLFBD: PLL FEEDBACK DIVISOR REGISTER(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0
— — — — — — —PLLDIV<8>
bit 15 bit 8
R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0
PLLDIV<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-9 Unimplemented: Read as ‘0’
bit 8-0 PLLDIV<8:0>: PLL Feedback Divisor bits (also denoted as ‘M’, PLL multiplier)
111111111 = 513
•
•
•
000110000 = 50 (default)
•
•
•
000000010 = 4
000000001 = 3
000000000 = 2
Note 1: This register is reset only on a Power-on Reset (POR).
© 2007-2012 Microchip Technology Inc. DS70292G-page 149
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 9-4: OSCTUN: FRC OSCILLATOR TUNING REGISTER(2)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— TUN<5:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5-0 TUN<5:0>: FRC Oscillator Tuning bits(1)
111111 = Center frequency -0.375% (7.345 MHz)
•
•
•
100001 = Center frequency -11.625% (6.52 MHz)
100000 = Center frequency -12% (6.49 MHz)
011111 = Center frequency +11.625% (8.23 MHz)
011110 = Center frequency +11.25% (8.20 MHz)
•
•
•
000001 = Center frequency +0.375% (7.40 MHz)
000000 = Center frequency (7.37 MHz nominal)
Note 1: OSCTUN functionality has been provided to help customers compensate for temperature effects on the
FRC frequency over a wide range of temperatures. The tuning step size is an approximation and is neither
characterized nor tested.
2: This register is reset only on a Power-on Reset (POR).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 150 © 2007-2012 Microchip Technology Inc.
REGISTER 9-5: ACLKCON: AUXILIARY CONTROL REGISTER(1)
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
—— SELACLK AOSCMD<1:0> APSTSCLR<2:0>
bit 15 bit 8
R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
ASRCSEL — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 SELACLK: Select Auxiliary Clock Source for Auxiliary Clock Divider
1 = Auxiliary Oscillators provides the source clock for Auxiliary Clock Divider
0 = PLL output (Fosc) provides the source clock for the Auxiliary Clock Divider
bit 12-11 AOSCMD<1:0>: Auxiliary Oscillator Mode
11 = EC External Clock Mode Select
10 = XT Oscillator Mode Select
01 = HS Oscillator Mode Select
00 = Auxiliary Oscillator Disabled
bit 10-8 APSTSCLR<2:0>: Auxiliary Clock Output Divider
111 = divided by 1
110 = divided by 2
101 = divided by 4
100 = divided by 8
011 = divided by 16
010 = divided by 32
001 = divided by 64
000 = divided by 256 (default)
bit 7 ASRCSEL: Select Reference Clock Source for Auxiliary Clock
1 = Primary Oscillator is the Clock Source
0 = Auxiliary Oscillator is the Clock Source
bit 6-0 Unimplemented: Read as ‘0’
Note 1: This register is reset only on a Power-on Reset (POR).
© 2007-2012 Microchip Technology Inc. DS70292G-page 151
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
9.4 Clock Switching Operation
Applications are free to switch among any of the four
clock sources (Primary, LP, FRC and LPRC) under
software control at any time. To limit the possible side
effects of this flexibility, dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices have a safeguard lock built into the switch
process.
9.4.1 ENABLING CLOCK SWITCHING
To enable clock switching, the FCKSM1 Configuration
bit in the Configuration register must be programmed to
‘0’. (Refer to Section 27.1 “Configuration Bits” for
further details.) If the FCKSM1 Configuration bit is
unprogrammed (‘1’), the clock switching function and
Fail-Safe Clock Monitor function are disabled. This is
the default setting.
The NOSC control bits (OSCCON<10:8>) do not
control the clock selection when clock switching is
disabled. However, the COSC bits (OSCCON<14:12>)
reflect the clock source selected by the FNOSC
Configuration bits.
The OSWEN control bit (OSCCON<0>) has no effect
when clock switching is disabled. It is held at ‘0’ at all
times.
9.4.2 OSCILLATOR SWITCHING SEQUENCE
Performing a clock switch requires this basic
sequence:
1. If desired, read the COSC bits
(OSCCON<14:12>) to determine the current
oscillator source.
2. Perform the unlock sequence to allow a write to
the OSCCON register high byte.
3. Write the appropriate value to the NOSC control
bits (OSCCON<10:8>) for the new oscillator
source.
4. Perform the unlock sequence to allow a write to
the OSCCON register low byte.
5. Set the OSWEN bit (OSCCON<0>) to initiate
the oscillator switch.
Once the basic sequence is completed, the system
clock hardware responds automatically as follows:
1. The clock switching hardware compares the
COSC status bits with the new value of the
NOSC control bits. If they are the same, the
clock switch is a redundant operation. In this
case, the OSWEN bit is cleared automatically
and the clock switch is aborted.
2. If a valid clock switch has been initiated, the
status bits, LOCK (OSCCON<5>) and the CF
(OSCCON<3>) are cleared.
3. The new oscillator is turned on by the hardware
if it is not currently running. If a crystal oscillator
must be turned on, the hardware waits until the
Oscillator Start-up Timer (OST) expires. If the
new source is using the PLL, the hardware waits
until a PLL lock is detected (LOCK = 1).
4. The hardware waits for 10 clock cycles from the
new clock source and then performs the clock
switch.
5. The hardware clears the OSWEN bit to indicate a
successful clock transition. In addition, the NOSC
bit values are transferred to the COSC status bits.
6. The old clock source is turned off at this time,
with the exception of LPRC (if WDT or FSCM
are enabled) or LP (if LPOSCEN remains set).
9.5 Fail-Safe Clock Monitor (FSCM)
The Fail-Safe Clock Monitor (FSCM) allows the device
to continue to operate even in the event of an oscillator
failure. The FSCM function is enabled by programming.
If the FSCM function is enabled, the LPRC internal
oscillator runs at all times (except during Sleep mode)
and is not subject to control by the Watchdog Timer.
In the event of an oscillator failure, the FSCM
generates a clock failure trap event and switches the
system clock over to the FRC oscillator. Then the
application program can either attempt to restart the
oscillator or execute a controlled shutdown. The trap
can be treated as a warm Reset by simply loading the
Reset address into the oscillator fail trap vector.
If the PLL multiplier is used to scale the system clock,
the internal FRC is also multiplied by the same factor
on clock failure. Essentially, the device switches to
FRC with PLL on a clock failure.
Note: Primary Oscillator mode has three different
submodes (XT, HS and EC), which are
determined by the POSCMD<1:0> Config-
uration bits. While an application can
switch to and from Primary Oscillator
mode in software, it cannot switch among
the different primary submodes without
reprogramming the device.
Note 1: The processor continues to execute code
throughout the clock switching sequence.
Timing-sensitive code should not be
executed during this time.
2: Direct clock switches between any primary
oscillator mode with PLL and FRCPLL
mode are not permitted. This applies to
clock switches in either direction. In these
instances, the application must switch to
FRC mode as a transition clock source
between the two PLL modes.
3: Refer to Section 39. “Oscillator
(Part III)” (DS70216) in the
“dsPIC33F/PIC24H Family Reference
Manual” for details.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 152 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 153
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
10.0 POWER-SAVING FEATURES
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices provide
the ability to manage power consumption by selectively
managing clocking to the CPU and the peripherals. In
general, a lower clock frequency and a reduction in the
number of circuits being clocked constitutes lower
consumed power. dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices can manage power consumption in four
ways:
• Clock frequency
• Instruction-based Sleep and Idle modes
• Software-controlled Doze mode
• Selective peripheral control in software
Combinations of these methods can be used to selec-
tively tailor an application’s power consumption while
still maintaining critical application features, such as
timing-sensitive communications.
10.1 Clock Frequency and Clock
Switching
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices allow a wide
range of clock frequencies to be selected under
application control. If the system clock configuration is
not locked, users can choose low-power or high-
precision oscillators by simply changing the NOSC bits
(OSCCON<10:8>). The process of changing a system
clock during operation, as well as limitations to the
process, are discussed in more detail in Section 9.0
“Oscillator Configuration”.
10.2 Instruction-Based Power-Saving
Modes
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices have two
special power-saving modes that are entered through
the execution of a special PWRSAV instruction. Sleep
mode stops clock operation and halts all code
execution. Idle mode halts the CPU and code
execution, but allows peripheral modules to continue
operation. The assembler syntax of the PWRSAV
instruction is shown in Example 10-1.
Sleep and Idle modes can be exited as a result of an
enabled interrupt, WDT time-out or a device Reset. When
the device exits these modes, it is said to wake up.
10.2.1 SLEEP MODE
The following occur in Sleep mode:
• The system clock source is shut down. If an
on-chip oscillator is used, it is turned off.
• The device current consumption is reduced to a
minimum, provided that no I/O pin is sourcing
current.
• The Fail-Safe Clock Monitor does not operate,
since the system clock source is disabled.
• The LPRC clock continues to run in Sleep mode if
the WDT is enabled.
• The WDT, if enabled, is automatically cleared
prior to entering Sleep mode.
• Some device features or peripherals can continue
to operate. This includes items such as the input
change notification on the I/O ports, or peripherals
that use an external clock input.
• Any peripheral that requires the system clock
source for its operation is disabled.
The device wakes up from Sleep mode on any of these
events:
• Any interrupt source that is individually enabled
• Any form of device Reset
• A WDT time-out
On wake-up from Sleep mode, the processor restarts
with the same clock source that was active when Sleep
mode was entered.
EXAMPLE 10-1: PWRSAV INSTRUCTION SYNTAX
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 9. “Watchdog Timer
and Power-Saving Modes” (DS70196)
of the “dsPIC33F/PIC24H Family Refer-
ence Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: SLEEP_MODE and IDLE_MODE are con-
stants defined in the assembler include
file for the selected device.
PWRSAV #SLEEP_MODE ; Put the device into SLEEP mode
PWRSAV #IDLE_MODE ; Put the device into IDLE mode
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 154 © 2007-2012 Microchip Technology Inc.
10.2.2 IDLE MODE
The following occur in Idle mode:
• The CPU stops executing instructions.
• The WDT is automatically cleared.
• The system clock source remains active. By
default, all peripheral modules continue to operate
normally from the system clock source, but can
also be selectively disabled (see Section 10.4
“Peripheral Module Disable”).
• If the WDT or FSCM is enabled, the LPRC also
remains active.
The device wakes from Idle mode on any of these
events:
• Any interrupt that is individually enabled
• Any form of device Reset
• A WDT time-out
On wake-up from Idle mode, the clock is reapplied to
the CPU and instruction execution will begin (2-4 clock
cycles later), starting with the instruction following the
PWRSAV instruction, or the first instruction in the ISR.
10.2.3 INTERRUPTS COINCIDENT WITH
POWER SAVE INSTRUCTIONS
Any interrupt that coincides with the execution of a
PWRSAV instruction is held off until entry into Sleep or
Idle mode has completed. The device then wakes up
from Sleep or Idle mode.
10.3 Doze Mode
The preferred strategies for reducing power
consumption are changing clock speed and invoking
one of the power-saving modes. In some
circumstances, this cannot be practical. For example, it
may be necessary for an application to maintain
uninterrupted synchronous communication, even while
it is doing nothing else. Reducing system clock speed
can introduce communication errors, while using a
power-saving mode can stop communications
completely.
Doze mode is a simple and effective alternative method
to reduce power consumption while the device is still
executing code. In this mode, the system clock
continues to operate from the same source and at the
same speed. Peripheral modules continue to be
clocked at the same speed, while the CPU clock speed
is reduced. Synchronization between the two clock
domains is maintained, allowing the peripherals to
access the SFRs while the CPU executes code at a
slower rate.
Doze mode is enabled by setting the DOZEN bit
(CLKDIV<11>). The ratio between peripheral and core
clock speed is determined by the DOZE<2:0> bits
(CLKDIV<14:12>). There are eight possible
configurations, from 1:1 to 1:128, with 1:1 being the
default setting.
Programs can use Doze mode to selectively reduce
power consumption in event-driven applications. This
allows clock-sensitive functions, such as synchronous
communications, to continue without interruption while
the CPU idles, waiting for something to invoke an
interrupt routine. An automatic return to full-speed CPU
operation on interrupts can be enabled by setting the
ROI bit (CLKDIV<15>). By default, interrupt events
have no effect on Doze mode operation.
For example, suppose the device is operating at
20 MIPS and the ECAN module has been configured
for 500 kbps based on this device operating speed. If
the device is placed in Doze mode with a clock
frequency ratio of 1:4, the ECAN module continues to
communicate at the required bit rate of 500 kbps, but
the CPU now starts executing instructions at a
frequency of 5 MIPS.
10.4 Peripheral Module Disable
The Peripheral Module Disable (PMD) registers
provide a method to disable a peripheral module by
stopping all clock sources supplied to that module.
When a peripheral is disabled using the appropriate
PMD control bit, the peripheral is in a minimum power
consumption state. The control and status registers
associated with the peripheral are also disabled, so
writes to those registers do not have effect and read
values are invalid.
A peripheral module is enabled only if both the
associated bit in the PMD register is cleared and the
peripheral is supported by the specific dsPIC® DSC
variant. If the peripheral is present in the device, it is
enabled in the PMD register by default.
Note: If a PMD bit is set, the corresponding mod-
ule is disabled after a delay of one instruc-
tion cycle. Similarly, if a PMD bit is cleared,
the corresponding module is enabled after
a delay of one instruction cycle (assuming
the module control registers are already
configured to enable module operation).
© 2007-2012 Microchip Technology Inc. DS70292G-page 155
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
10.5 Power-Saving Resources
Many useful resources related to Power-Saving are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
10.5.1 KEY RESOURCES
•Section 9. “Watchdog Timer and Power-Saving
Modes” (DS70196)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 156 © 2007-2012 Microchip Technology Inc.
10.6 Power-Saving Control Registers
REGISTER 10-1: PMD1: PERIPHERAL MODULE DISABLE CONTROL REGISTER 1
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0
T5MD T4MD T3MD T2MD T1MD —— DCIMD
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
I2C1MD U2MD U1MD SPI2MD SPI1MD —C1MDAD1MD
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 T5MD: Timer5 Module Disable bit
1 = Timer5 module is disabled
0 = Timer5 module is enabled
bit 14 T4MD: Timer4 Module Disable bit
1 = Timer4 module is disabled
0 = Timer4 module is enabled
bit 13 T3MD: Timer3 Module Disable bit
1 = Timer3 module is disabled
0 = Timer3 module is enabled
bit 12 T2MD: Timer2 Module Disable bit
1 = Timer2 module is disabled
0 = Timer2 module is enabled
bit 11 T1MD: Timer1 Module Disable bit
1 = Timer1 module is disabled
0 = Timer1 module is enabled
bit 10-9 Unimplemented: Read as ‘0’
bit 8 DCIMD: DCI Module Disable bit
1 = DCI module is disabled
0 = DCI module is enabled
bit 7 I2C1MD: I2C1 Module Disable bit
1 = I2C1 module is disabled
0 = I2C1 module is enabled
bit 6 U2MD: UART2 Module Disable bit
1 = UART2 module is disabled
0 = UART2 module is enabled
bit 5 U1MD: UART1 Module Disable bit
1 = UART1 module is disabled
0 = UART1 module is enabled
bit 4 SPI2MD: SPI2 Module Disable bit
1 = SPI2 module is disabled
0 = SPI2 module is enabled
bit 3 SPI1MD: SPI1 Module Disable bit
1 = SPI1 module is disabled
0 = SPI1 module is enabled
bit 2 Unimplemented: Read as ‘0’
bit 1 C1MD: ECAN1 Module Disable bit
1 = ECAN1 module is disabled
0 = ECAN1 module is enabled
bit 0 AD1MD: ADC1 Module Disable bit
1 = ADC1 module is disabled
0 = ADC1 module is enabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 157
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 10-2: PMD2: PERIPHERAL MODULE DISABLE CONTROL REGISTER 2
R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
IC8MD IC7MD ————IC2MDIC1MD
bit 15 bit 8
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
———— OC4MD OC3MD OC2MD OC1MD
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IC8MD: Input Capture 8 Module Disable bit
1 = Input Capture 8 module is disabled
0 = Input Capture 8 module is enabled
bit 14 IC7MD: Input Capture 2 Module Disable bit
1 = Input Capture 7 module is disabled
0 = Input Capture 7 module is enabled
bit 13-10 Unimplemented: Read as ‘0’
bit 9 IC2MD: Input Capture 2 Module Disable bit
1 = Input Capture 2 module is disabled
0 = Input Capture 2 module is enabled
bit 8 IC1MD: Input Capture 1 Module Disable bit
1 = Input Capture 1 module is disabled
0 = Input Capture 1 module is enabled
bit 7-4 Unimplemented: Read as ‘0’
bit 3 OC4MD: Output Compare 4 Module Disable bit
1 = Output Compare 4 module is disabled
0 = Output Compare 4 module is enabled
bit 2 OC3MD: Output Compare 3 Module Disable bit
1 = Output Compare 3 module is disabled
0 = Output Compare 3 module is enabled
bit 1 OC2MD: Output Compare 2 Module Disable bit
1 = Output Compare 2 module is disabled
0 = Output Compare 2 module is enabled
bit 0 OC1MD: Output Compare 1 Module Disable bit
1 = Output Compare 1 module is disabled
0 = Output Compare 1 module is enabled
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 158 © 2007-2012 Microchip Technology Inc.
REGISTER 10-3: PMD3: PERIPHERAL MODULE DISABLE CONTROL REGISTER 3
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
————— CMPMD RTCCMD PMPMD
bit 15 bit 8
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 U-0
CRCMD DAC1MD ——————
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10 CMPMD: Comparator Module Disable bit
1 = Comparator module is disabled
0 = Comparator module is enabled
bit 9 RTCCMD: RTCC Module Disable bit
1 = RTCC module is disabled
0 = RTCC module is enabled
bit 8 PMPMD: PMP Module Disable bit
1 = PMP module is disabled
0 = PMP module is enabled
bit 7 CRCMD: CRC Module Disable bit
1 = CRC module is disabled
0 = CRC module is enabled
bit 6 DAC1MD: DAC1 Module Disable bit
1 = DAC1 module is disabled
0 = DAC1 module is enabled
bit 5-0 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 159
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
11.0 I/O PORTS
All of the device pins (except VDD, VSS, MCLR and
OSC1/CLKI) are shared among the peripherals and the
parallel I/O ports. All I/O input ports feature Schmitt
Trigger inputs for improved noise immunity.
11.1 Parallel I/O (PIO) Ports
Generally a parallel I/O port that shares a pin with a
peripheral is subservient to the peripheral. The
peripheral’s output buffer data and control signals are
provided to a pair of multiplexers. The multiplexers
select whether the peripheral or the associated port
has ownership of the output data and control signals of
the I/O pin. The logic also prevents “loop through,” in
which a port’s digital output can drive the input of a
peripheral that shares the same pin. Figure 11-1 shows
how ports are shared with other peripherals and the
associated I/O pin to which they are connected.
When a peripheral is enabled and the peripheral is
actively driving an associated pin, the use of the pin as
a general purpose output pin is disabled. The I/O pin
can be read, but the output driver for the parallel port bit
is disabled. If a peripheral is enabled, but the peripheral
is not actively driving a pin, that pin can be driven by a
port.
All port pins have three registers directly associated
with their operation as digital I/O. The data direction
register (TRISx) determines whether the pin is an input
or an output. If the data direction bit is a ‘1’, then the pin
is an input. All port pins are defined as inputs after a
Reset. Reads from the latch (LATx) read the latch.
Writes to the latch write the latch. Reads from the port
(PORTx) read the port pins, while writes to the port pins
write the latch.
Any bit and its associated data and control registers
that are not valid for a particular device is disabled.
This means the corresponding LATx and TRISx
registers and the port pin are read as zeros.
When a pin is shared with another peripheral or
function that is defined as an input only, it is
nevertheless regarded as a dedicated port because
there is no other competing source of outputs.
FIGURE 11-1: BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section “30. I/O Ports with
Peripheral Pin Select” (DS70190) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
QD
CK
WR LAT +
TRIS Latch
I/O Pin
WR Port
Data Bus
QD
CK
Data Latch
Read Port
Read TRIS
1
0
1
0
WR TRIS
Peripheral Output Data
Output Enable
Peripheral Input Data
I/O
Peripheral Module
Peripheral Output Enable
PIO Module
Output Multiplexers
Output Data
Input Data
Peripheral Module Enable
Read LAT
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 160 © 2007-2012 Microchip Technology Inc.
11.2 Open-Drain Configuration
In addition to the PORT, LAT and TRIS registers for
data control, some port pins can also be individually
configured for either digital or open-drain output. This
is controlled by the Open-Drain Control register,
ODCx, associated with each port. Setting any of the
bits configures the corresponding pin to act as an
open-drain output.
The open-drain feature allows the generation of
outputs higher than VDD (e.g., 5V) on any desired 5V
tolerant pins by using external pull-up resistors. The
maximum open-drain voltage allowed is the same as
the maximum VIH specification.
Refer to “Pin Diagrams” for the available pins and
their functionality.
11.3 Configuring Analog Port Pins
The AD1PCFGL and TRIS registers control the opera-
tion of the Analog-to-Digital (ADC) port pins. The port
pins that are to function as analog inputs must have
their corresponding TRIS bit set (input). If the TRIS bit
is cleared (output), the digital output level (VOH or VOL)
is converted.
The AD1PCFGL register has a default value of 0x0000;
therefore, all pins that share ANx functions are analog
(not digital) by default.
When the PORT register is read, all pins configured as
analog input channels are read as cleared (a low level).
Pins configured as digital inputs do not convert an
analog input. Analog levels on any pin defined as a
digital input (including the ANx pins) can cause the
input buffer to consume current that exceeds the
device specifications.
11.4 I/O Port Write/Read Timing
One instruction cycle is required between a port
direction change or port write operation and a read
operation of the same port. Typically this instruction
would be an NOP, as shown in Example 11-1.
11.5 Input Change Notification
The input change notification function of the I/O ports
allows the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices to generate interrupt requests to the
processor in response to a change-of-state on selected
input pins. This feature can detect input change-of-
states even in Sleep mode, when the clocks are
disabled. Depending on the device pin count, up to 21
external signals (CNx pin) can be selected (enabled)
for generating an interrupt request on a change-of-
state.
Four control registers are associated with the CN mod-
ule. The CNEN1 and CNEN2 registers contain the
interrupt enable control bits for each of the CN input
pins. Setting any of these bits enables a CN interrupt
for the corresponding pins.
Each CN pin also has a weak pull-up connected to it.
The pull-ups act as a current source connected to the
pin, and eliminate the need for external resistors when
push-button or keypad devices are connected. The
pull-ups are enabled separately using the CNPU1 and
CNPU2 registers, which contain the control bits for
each of the CN pins. Setting any of the control bits
enables the weak pull-ups for the corresponding pins.
EXAMPLE 11-1: PORT WRITE/READ EXAMPLE
Note: Pull-ups on change notification pins
should always be disabled when the port
pin is configured as a digital output.
MOV 0xFF00, W0 ; Configure PORTB<15:8> as inputs
MOV W0, TRISBB ; and PORTB<7:0> as outputs
NOP ; Delay 1 cycle
btss PORTB, #13 ; Next Instruction
© 2007-2012 Microchip Technology Inc. DS70292G-page 161
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
11.6 Peripheral Pin Select
Peripheral pin select configuration enables peripheral
set selection and placement on a wide range of I/O
pins. By increasing the pinout options available on a
particular device, programmers can better tailor the
microcontroller to their entire application, rather than
trimming the application to fit the device.
The peripheral pin select configuration feature
operates over a fixed subset of digital I/O pins.
Programmers can independently map the input and/or
output of most digital peripherals to any one of these
I/O pins. Peripheral pin select is performed in
software, and generally does not require the device to
be reprogrammed. Hardware safeguards are included
that prevent accidental or spurious changes to the
peripheral mapping, once it has been established.
11.6.1 AVAILABLE PINS
The peripheral pin select feature is used with a range
of up to 26 pins. The number of available pins depends
on the particular device and its pin count. Pins that
support the peripheral pin select feature include the
designation “RPn” in their full pin designation, where
“RP” designates a remappable peripheral and “n” is the
remappable pin number.
11.6.2 CONTROLLING PERIPHERAL PIN
SELECT
Peripheral pin select features are controlled through
two sets of special function registers: one to map
peripheral inputs, and one to map outputs. Because
they are separately controlled, a particular peripheral’s
input and output (if the peripheral has both) can be
placed on any selectable function pin without
constraint.
The association of a peripheral to a peripheral select-
able pin is handled in two different ways, depending on
whether an input or output is being mapped.
11.6.2.1 Input Mapping
The inputs of the peripheral pin select options are
mapped on the basis of the peripheral. A control
register associated with a peripheral dictates the pin it
is mapped to. The RPINRx registers are used to
configure peripheral input mapping (see Register 11-1
through Register 11-16). Each register contains sets of
5-bit fields, with each set associated with one of the
remappable peripherals. Programming a given
peripheral’s bit field with an appropriate 5-bit value
maps the RPn pin with that value to that peripheral.
For any given device, the valid range of values for any
bit field corresponds to the maximum number of
peripheral pin selections supported by the device.
Figure 11-2 illustrates remappable pin selection for
U1RX input.
FIGURE 11-2: REMAPPABLE MUX
INPUT FOR U1RX
Note: For input mapping only, the Peripheral Pin
Select (PPS) functionality does not have
priority over the TRISx settings. Therefore,
when configuring the RPx pin for input, the
corresponding bit in the TRISx register
must also be configured for input (i.e., set
to ‘1’).
RP0
RP1
RP2
RP 25
0
25
1
2
U1RX input
U1RXR<4:0>
to peripheral
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 162 © 2007-2012 Microchip Technology Inc.
TABLE 11-1: SELECTABLE INPUT SOURCES (MAPS INPUT TO FUNCTION)(1)
Input Name Function Name Register Configuration
Bits
External Interrupt 1 INT1 RPINR0 INT1R<4:0>
External Interrupt 2 INT2 RPINR1 INT2R<4:0>
Timer2 External Clock T2CK RPINR3 T2CKR<4:0>
Timer3 External Clock T3CK RPINR3 T3CKR<4:0>
Timer4 External Clock T4CK RPINR4 T4CKR<4:0>
Timer5 External Clock T5CK RPINR4 T5CKR<4:0>
Input Capture 1 IC1 RPINR7 IC1R<4:0>
Input Capture 2 IC2 RPINR7 IC2R<4:0>
Input Capture 7 IC7 RPINR10 IC7R<4:0>
Input Capture 8 IC8 RPINR10 IC8R<4:0>
Output Compare Fault A OCFA RPINR11 OCFAR<4:0>
UART1 Receive U1RX RPINR18 U1RXR<4:0>
UART1 Clear To Send U1CTS RPINR18 U1CTSR<4:0>
UART2 Receive U2RX RPINR19 U2RXR<4:0>
UART2 Clear To Send U2CTS RPINR19 U2CTSR<4:0>
SPI1 Data Input SDI1 RPINR20 SDI1R<4:0>
SPI1 Clock Input SCK1 RPINR20 SCK1R<4:0>
SPI1 Slave Select Input SS1 RPINR21 SS1R<4:0>
SPI2 Data Input SDI2 RPINR22 SDI2R<4:0>
SPI2 Clock Input SCK2 RPINR22 SCK2R<4:0>
SPI2 Slave Select Input SS2 RPINR23 SS2R<4:0>
DCI Serial Data Input CSDI RPINR24 CSDIR<4:0>
DCI Serial Clock Input CSCK RPINR24 CSCKR<4:0>
DCI Frame Sync Input COFS RPINR25 COFSR<4:0>
ECAN1 Receive CIRX RPINR26 CIRXR<4:0>
Note 1: Unless otherwise noted, all inputs use Schmitt input buffers.
© 2007-2012 Microchip Technology Inc. DS70292G-page 163
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
11.6.2.2 Output Mapping
In contrast to inputs, the outputs of the peripheral pin
select options are mapped on the basis of the pin. In
this case, a control register associated with a particular
pin dictates the peripheral output to be mapped. The
RPORx registers are used to control output mapping.
Like the RPINRx registers, each register contains sets
of 5-bit fields, with each set associated with one RPn
pin (see Register 11-17 through Register 11-29). The
value of the bit field corresponds to one of the
peripherals, and that peripheral’s output is mapped to
the pin (see Ta bl e 11 -2 and Figure 11-3).
The list of peripherals for output mapping also includes
a null value of ‘00000’ because of the mapping
technique. This permits any given pin to remain
unconnected from the output of any of the pin
selectable peripherals.
FIGURE 11-3: MULTIPLEXING OF
REMAPPABLE OUTPUT
FOR RPn
TABLE 11-2: OUTPUT SELECTION FOR REMAPPABLE PIN (RPn)
0
21
3
RPnR<4:0>
default
U1TX Output enable
U1RTS Output enable 4
OC4 Output
0
21
3
default
U1TX Output
U1RTS Output 4
OC4 Output
Output Enable
Output Data
RPn
Function RPnR<4:0> Output Name
NULL 00000 RPn tied to default port pin
C1OUT 00001 RPn tied to Comparator1 Output
C2OUT 00010 RPn tied to Comparator2 Output
U1TX 00011 RPn tied to UART1 Transmit
U1RTS 00100 RPn tied to UART1 Ready To Send
U2TX 00101 RPn tied to UART2 Transmit
U2RTS 00110 RPn tied to UART2 Ready To Send
SDO1 00111 RPn tied to SPI1 Data Output
SCK1 01000 RPn tied to SPI1 Clock Output
SS1 01001 RPn tied to SPI1 Slave Select Output
SDO2 01010 RPn tied to SPI2 Data Output
SCK2 01011 RPn tied to SPI2 Clock Output
SS2 01100 RPn tied to SPI2 Slave Select Output
CSDO 01101 RPn tied to DCI Serial Data Output
CSCK 01110 RPn tied to DCI Serial Clock Output
COFS 01111 RPn tied to DCI Frame Sync Output
C1TX 10000 RPn tied to ECAN1 Transmit
OC1 10010 RPn tied to Output Compare 1
OC2 10011 RPn tied to Output Compare 2
OC3 10100 RPn tied to Output Compare 3
OC4 10101 RPn tied to Output Compare 4
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 164 © 2007-2012 Microchip Technology Inc.
11.6.3 CONTROLLING CONFIGURATION
CHANGES
Because peripheral remapping can be changed during
run time, some restrictions on peripheral remapping
are needed to prevent accidental configuration
changes. dsPIC33F devices include three features to
prevent alterations to the peripheral map:
• Control register lock sequence
• Continuous state monitoring
• Configuration bit pin select lock
11.6.3.1 Control Register Lock
Under normal operation, writes to the RPINRx and
RPORx registers are not allowed. Attempted writes
appear to execute normally, but the contents of the reg-
isters remain unchanged. To change these registers,
they must be unlocked in hardware. The register lock is
controlled by the IOLOCK bit (OSCCON<6>). Setting
IOLOCK prevents writes to the control registers;
clearing IOLOCK allows writes.
To set or clear IOLOCK, a specific command sequence
must be executed:
1. Write 0x46 to OSCCON<7:0>.
2. Write 0x57 to OSCCON<7:0>.
3. Clear (or set) IOLOCK as a single operation.
Unlike the similar sequence with the oscillator’s LOCK
bit, IOLOCK remains in one state until changed. This
allows all of the peripheral pin selects to be configured
with a single unlock sequence followed by an update to
all control registers, then locked with a second lock
sequence.
11.6.3.2 Continuous State Monitoring
In addition to being protected from direct writes, the
contents of the RPINRx and RPORx registers are
constantly monitored in hardware by shadow registers.
If an unexpected change in any of the registers occurs
(such as cell disturbances caused by ESD or other
external events), a configuration mismatch Reset is
triggered.
11.6.3.3 Configuration Bit Pin Select Lock
As an additional level of safety, the device can be
configured to prevent more than one write session to
the RPINRx and RPORx registers. The IOL1WAY con-
figuration bit (FOSC<5>) blocks the IOLOCK bit from
being cleared after it has been set once. If IOLOCK
remains set, the register unlock procedure does not
execute, and the peripheral pin select control registers
cannot be written to. The only way to clear the bit and
re-enable peripheral remapping is to perform a device
Reset.
In the default (unprogrammed) state, IOL1WAY is set,
restricting users to one write session. Programming
IOL1WAY allows user applications unlimited access
(with the proper use of the unlock sequence) to the
peripheral pin select registers.
Note: MPLAB® C30 provides built-in C language
functions for unlocking the OSCCON
register:
__builtin_write_OSCCONL(value)
__builtin_write_OSCCONH(value)
See MPLAB Help for more information.
© 2007-2012 Microchip Technology Inc. DS70292G-page 165
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
11.7 I/O Helpful Tips
1. In some cases, certain pins as defined in TABLE
30-9: “DC Characteristics: I/O Pin Input Speci-
fications” under “Injection Current”, have internal
protection diodes to VDD and VSS. The term
“Injection Current” is also referred to as “Clamp
Current”. On designated pins, with sufficient exter-
nal current limiting precautions by the user, I/O pin
input voltages are allowed to be greater or less
than the data sheet absolute maximum ratings
with nominal VDD with respect to the VSS and VDD
supplies. Note that when the user application for-
ward biases either of the high or low side internal
input clamp diodes, that the resulting current being
injected into the device that is clamped internally
by the VDD and VSS power rails, may affect the
ADC accuracy by four to six counts.
2. I/O pins that are shared with any analog input pin,
(i.e., ANx), are always analog pins by default after
any reset. Consequently, any pin(s) configured as
an analog input pin, automatically disables the dig-
ital input pin buffer. As such, any attempt to read a
digital input pin will always return a ‘0’ regardless
of the digital logic level on the pin if the analog pin
is configured. To use a pin as a digital I/O pin on a
shared ANx pin, the user application needs to con-
figure the analog pin configuration registers in the
ADC module, (i.e., ADxPCFGL, AD1PCFGH), by
setting the appropriate bit that corresponds to that
I/O port pin to a ‘1’. On devices with more than one
ADC, both analog pin configurations for both ADC
modules must be configured as a digital I/O pin for
that pin to function as a digital I/O pin.
3. Most I/O pins have multiple functions. Referring to
the device pin diagrams in the data sheet, the pri-
orities of the functions allocated to any pins are
indicated by reading the pin name from left-to-
right. The left most function name takes prece-
dence over any function to its right in the naming
convention. For example: AN16/T2CK/T7CK/RC1.
This indicates that AN16 is the highest priority in
this example and will supersede all other functions
to its right in the list. Those other functions to its
right, even if enabled, would not work as long as
any other function to its left was enabled. This rule
applies to all of the functions listed for a given pin.
4. Each CN pin has a configurable internal weak
pull-up resistor. The pull-ups act as a current
source connected to the pin, and eliminates the
need for external resistors in certain applica-
tions. The internal pull-up is to ~(VDD-0.8) not
VDD. This is still above the minimum VIH of
CMOS and TTL devices.
5. When driving LEDs directly, the I/O pin can source
or sink more current than what is specified in the
VOH/IOH and VOL/IOL DC characteristic specifica-
tion. The respective IOH and IOL current rating only
applies to maintaining the corresponding output at
or above the VOH and at or below the VOL levels.
However, for LEDs unlike digital inputs of an exter-
nally connected device, they are not governed by
the same minimum VIH/VIL levels. An I/O pin out-
put can safely sink or source any current less than
that listed in the absolute maximum rating section
of the data sheet. For example:
VOH = 2.4v @ IOH = -8 mA and VDD = 3.3V
The maximum output current sourced by any 8 mA
I/O pin = 12 mA.
LED source current < 12 mA is technically
permitted. Refer to the VOH/IOH graphs in
Section 30.0 “Electrical Characteristics” for
additional information.
11.8 I/O Resources
Many useful resources related to I/O are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
11.8.1 KEY RESOURCES
•Section 10. “I/O Ports” (DS70193)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: Although it is not possible to use a digital
input pin when its analog function is
enabled, it is possible to use the digital I/O
output function, TRISx = 0x0, while the
analog function is also enabled. However,
this is not recommended, particularly if the
analog input is connected to an external
analog voltage source, which would cre-
ate signal contention between the analog
signal and the output pin driver.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 166 © 2007-2012 Microchip Technology Inc.
11.9 Peripheral Pin Select Registers
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 family of devices
implement 33 registers for remappable peripheral
configuration:
• 16 Input Remappable Peripheral Registers:
- RPINR0-RPINR1, RPINR3-RPINR4,
RPINR7, RPINR10-RPINR11 and
PRINR18-RPINR26
• 13 Output Remappable Peripheral Registers:
- RPOR0-RPOR12
Note: Input and Output Register values can only
be changed if the IOLOCK bit
(OSCCON<6>) is set to ‘0’. See
Section 11.6.3.1 “Control Register
Lock” for a specific command sequence.
REGISTER 11-1: RPINR0: PERIPHERAL PIN SELECT INPUT REGISTER 0
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —INT1R<4:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 INT1R<4:0>: Assign External Interrupt 1 (INTR1) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-0 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 167
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-2: RPINR1: PERIPHERAL PIN SELECT INPUT REGISTER 1
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —INT2R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 INT2R<4:0>: Assign External Interrupt 2 (INTR2) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 168 © 2007-2012 Microchip Technology Inc.
REGISTER 11-3: RPINR3: PERIPHERAL PIN SELECT INPUT REGISTER 3
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —T3CKR<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —T2CKR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 T3CKR<4:0>: Assign Timer3 External Clock (T3CK) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 T2CKR<4:0>: Assign Timer2 External Clock (T2CK) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 169
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-4: RPINR4: PERIPHERAL PIN SELECT INPUT REGISTER 4
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —T5CKR<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —T4CKR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 T5CKR<4:0>: Assign Timer5 External Clock (T5CK) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 T4CKR<4:0>: Assign Timer4 External Clock (T4CK) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 170 © 2007-2012 Microchip Technology Inc.
REGISTER 11-5: RPINR7: PERIPHERAL PIN SELECT INPUT REGISTER 7
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — IC2R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — IC1R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 IC2R<4:0>: Assign Input Capture 2 (IC2) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 IC1R<4:0>: Assign Input Capture 1 (IC1) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25.
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 171
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-6: RPINR10: PERIPHERAL PIN SELECT INPUT REGISTER 10
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — IC8R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — IC7R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 IC8R<4:0>: Assign Input Capture 8 (IC8) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 IC7R<4:0>: Assign Input Capture 7 (IC7) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 172 © 2007-2012 Microchip Technology Inc.
REGISTER 11-7: RPINR11: PERIPHERAL PIN SELECT INPUT REGISTER 11
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —OCFAR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 OCFAR<4:0>: Assign Output Compare A (OCFA) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 173
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-8: RPINR18: PERIPHERAL PIN SELECT INPUT REGISTER 18
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — U1CTSR<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —U1RXR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 U1CTSR<4:0>: Assign UART1 Clear to Send (U1CTS) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 U1RXR<4:0>: Assign UART1 Receive (U1RX) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 174 © 2007-2012 Microchip Technology Inc.
REGISTER 11-9: RPINR19: PERIPHERAL PIN SELECT INPUT REGISTER 19
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — U2CTSR<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —U2RXR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 U2CTSR<4:0>: Assign UART2 Clear to Send (U2CTS) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 U2RXR<4:0>: Assign UART2 Receive (U2RX) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 175
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-10: RPINR20: PERIPHERAL PIN SELECT INPUT REGISTER 20
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —SCK1R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —SDI1R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 SCK1R<4:0>: Assign SPI1 Clock Input (SCK1) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 SDI1R<4:0>: Assign SPI1 Data Input (SDI1) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 176 © 2007-2012 Microchip Technology Inc.
REGISTER 11-11: RPINR21: PERIPHERAL PIN SELECT INPUT REGISTER 21
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — SS1R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 SS1R<4:0>: Assign SPI1 Slave Select Input (SS1) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 177
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-12: RPINR22: PERIPHERAL PIN SELECT INPUT REGISTER 22
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —SCK2R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —SDI2R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 SCK2R<4:0>: Assign SPI2 Clock Input (SCK2) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 SDI2R<4:0>: Assign SPI2 Data Input (SDI2) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 178 © 2007-2012 Microchip Technology Inc.
REGISTER 11-13: RPINR23: PERIPHERAL PIN SELECT INPUT REGISTER 23
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — SS2R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 SS2R<4:0>: Assign SPI2 Slave Select Input (SS2) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
© 2007-2012 Microchip Technology Inc. DS70292G-page 179
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-14: RPINR24: PERIPHERAL PIN SELECT INPUT REGISTER 24
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — CSCKR<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —CSDIR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 CSCKR<4:0>: Assign DCI Serial Clock Input (CSCK) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
bit 4-0 CSDIR<4:0>: Assign DCI Serial Data Input (CSDI) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 180 © 2007-2012 Microchip Technology Inc.
REGISTER 11-15: RPINR25: PERIPHERAL PIN SELECT INPUT REGISTER 25
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — — COFSR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 COFSR<4:0>: Assign DCI Frame Sync Input (COFS) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
REGISTER 11-16: RPINR26: PERIPHERAL PIN SELECT INPUT REGISTER 26(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — —C1RXR<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 C1RXR<4:0>: Assign ECAN1Receive (C1RX) to the corresponding RPn pin
11111 = Input tied to VSS
11001 = Input tied to RP25
•
•
•
00001 = Input tied to RP1
00000 = Input tied to RP0
Note 1: This register is disabled on devices without an ECAN™ module.
© 2007-2012 Microchip Technology Inc. DS70292G-page 181
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-17: RPOR0: PERIPHERAL PIN SELECT OUTPUT REGISTER 0
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP1R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP0R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP1R<4:0>: Peripheral Output Function is Assigned to RP1 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP0R<4:0>: Peripheral Output Function is Assigned to RP0 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
REGISTER 11-18: RPOR1: PERIPHERAL PIN SELECT OUTPUT REGISTER 1
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP3R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP2R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP3R<4:0>: Peripheral Output Function is Assigned to RP3 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP2R<4:0>: Peripheral Output Function is Assigned to RP2 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 182 © 2007-2012 Microchip Technology Inc.
REGISTER 11-19: RPOR2: PERIPHERAL PIN SELECT OUTPUT REGISTER 2
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP5R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP4R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP5R<4:0>: Peripheral Output Function is Assigned to RP5 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP4R<4:0>: Peripheral Output Function is Assigned to RP4 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
REGISTER 11-20: RPOR3: PERIPHERAL PIN SELECT OUTPUT REGISTER 3
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP7R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP6R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP7R<4:0>: Peripheral Output Function is Assigned to RP7 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP6R<4:0>: Peripheral Output Function is Assigned to RP6 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
© 2007-2012 Microchip Technology Inc. DS70292G-page 183
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-21: RPOR4: PERIPHERAL PIN SELECT OUTPUT REGISTER 4
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP9R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP8R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP9R<4:0>: Peripheral Output Function is Assigned to RP9 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP8R<4:0>: Peripheral Output Function is Assigned to RP8 Output Pin bits (see Ta b l e 11 - 2 for
peripheral function numbers)
REGISTER 11-22: RPOR5: PERIPHERAL PIN SELECT OUTPUT REGISTER 5
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — —RP11R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP10R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP11R<4:0>: Peripheral Output Function is Assigned to RP11 Output Pin bits (see Table 11-2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP10R<4:0>: Peripheral Output Function is Assigned to RP10 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 184 © 2007-2012 Microchip Technology Inc.
REGISTER 11-23: RPOR6: PERIPHERAL PIN SELECT OUTPUT REGISTER 6
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP13R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP12R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP13R<4:0>: Peripheral Output Function is Assigned to RP13 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP12R<4:0>: Peripheral Output Function is Assigned to RP12 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
REGISTER 11-24: RPOR7: PERIPHERAL PIN SELECT OUTPUT REGISTER 7
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP15R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP14R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP15R<4:0>: Peripheral Output Function is Assigned to RP15 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP14R<4:0>: Peripheral Output Function is Assigned to RP14 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
© 2007-2012 Microchip Technology Inc. DS70292G-page 185
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-25: RPOR8: PERIPHERAL PIN SELECT OUTPUT REGISTER 8(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP17R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP16R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP17R<4:0>: Peripheral Output Function is Assigned to RP17 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP16R<4:0>: Peripheral Output Function is Assigned to RP16 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
Note 1: This register is implemented in 44-pin devices only.
REGISTER 11-26: RPOR9: PERIPHERAL PIN SELECT OUTPUT REGISTER 9(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP19R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP18R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP19R<4:0>: Peripheral Output Function is Assigned to RP19 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP18R<4:0>: Peripheral Output Function is Assigned to RP18 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
Note 1: This register is implemented in 44-pin devices only.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 186 © 2007-2012 Microchip Technology Inc.
REGISTER 11-27: RPOR10: PERIPHERAL PIN SELECT OUTPUT REGISTER 10(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP21R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP20R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP21R<4:0>: Peripheral Output Function is Assigned to RP21 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP20R<4:0>: Peripheral Output Function is Assigned to RP20 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
Note 1: This register is implemented in 44-pin devices only.
REGISTER 11-28: RPOR11: PERIPHERAL PIN SELECT OUTPUT REGISTER 11(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP23R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP22R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP23R<4:0>: Peripheral Output Function is Assigned to RP23 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP22R<4:0>: Peripheral Output Function is Assigned to RP22 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
Note 1: This register is implemented in 44-pin devices only.
© 2007-2012 Microchip Technology Inc. DS70292G-page 187
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 11-29: RPOR12: PERIPHERAL PIN SELECT OUTPUT REGISTER 12(1)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP25R<4:0>
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — RP24R<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 RP25R<4:0>: Peripheral Output Function is Assigned to RP25 Output Pin bits (see Tab le 11- 2 for
peripheral function numbers)
bit 7-5 Unimplemented: Read as ‘0’
bit 4-0 RP24R<4:0>: Peripheral Output Function is Assigned to RP24 Output Pin bits (see Ta bl e 11- 2 for
peripheral function numbers)
Note 1: This register is implemented in 44-pin devices only.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 188 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 189
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
12.0 TIMER1
The Timer1 module is a 16-bit timer, which can serve
as the time counter for the real-time clock, or operate
as a free-running interval timer/counter.
The Timer1 module has the following unique features
over other timers:
• Can be operated from the low power 32 kHz
crystal oscillator available on the device
• Can be operated in Asynchronous Counter mode
from an external clock source.
• The external clock input (T1CK) can optionally be
synchronized to the internal device clock and the
clock synchronization is performed after the
prescaler.
The unique features of Timer1 allow it to be used for
Real-Time Clock (RTC) applications. A block diagram
of Timer1 is shown in Figure 12-1.
The Timer1 module can operate in one of the following
modes:
• Timer mode
• Gated Timer mode
• Synchronous Counter mode
• Asynchronous Counter mode
In Timer and Gated Timer modes, the input clock is
derived from the internal instruction cycle clock (FCY).
In Synchronous and Asynchronous Counter modes,
the input clock is derived from the external clock input
at the T1CK pin.
The Timer modes are determined by the following bits:
• Timer Clock Source Control bit (TCS): T1CON<1>
• Timer Synchronization Control bit (TSYNC):
T1CON<2>
• Timer Gate Control bit (TGATE): T1CON<6>
Timer control bit setting for different operating modes
are given in the Table 12-1.
TABLE 12-1: TIMER MODE SETTINGS
FIGURE 12-1: 16-BIT TIMER1 MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 11. “Timers” (DS70205)
of the “dsPIC33F/PIC24H Family Refer-
ence Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Mode TCS TGATE TSYNC
Timer 00x
Gated timer 01x
Synchronous
counter
1x1
Asynchronous
counter
1x0
TGATE
TCS
00
10
x1
TMR1
Comparator
PR1
TGATE
Set T1IF flag
0
1
TSYNC
1
0
Sync
Equal
Reset
SOSCI
SOSCO/
T1CK
Prescaler
(/n)
TCKPS<1:0>
Gate
Sync
FCY
Falling Edge
Detect
Prescaler
(/n)
TCKPS<1:0>
LPOSCEN(1)
Note 1: Refer to Section 9.0 “Oscillator Configuration” for information on enabling the secondary oscillator.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 190 © 2007-2012 Microchip Technology Inc.
12.1 Timer Resources
Many useful resources related to Timers are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
12.1.1 KEY RESOURCES
•Section 11. “Timers” (DS70205)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 191
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
12.2 Timer1 Control Register
REGISTER 12-1: T1CON: TIMER1 CONTROL REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON —TSIDL— — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 U-0
— TGATE TCKPS<1:0> — TSYNC TCS —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TON: Timer1 On bit
1 = Starts 16-bit Timer1
0 = Stops 16-bit Timer1
bit 14 Unimplemented: Read as ‘0’
bit 13 TSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 TGATE: Timer1 Gated Time Accumulation Enable bit
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation enabled
0 = Gated time accumulation disabled
bit 5-4 TCKPS<1:0>: Timer1 Input Clock Prescale Select bits
11 = 1:256
10 = 1:64
01 = 1:8
00 = 1:1
bit 3 Unimplemented: Read as ‘0’
bit 2 TSYNC: Timer1 External Clock Input Synchronization Select bit
When TCS = 1:
1 = Synchronize external clock input
0 = Do not synchronize external clock input
When TCS = 0:
This bit is ignored.
bit 1 TCS: Timer1 Clock Source Select bit
1 = External clock from pin T1CK (on the rising edge)
0 = Internal clock (FCY)
bit 0 Unimplemented: Read as ‘0’
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 192 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 193
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
13.0 TIMER2/3 AND TIMER4/5
FEATURE
Timer2 and Timer4 are Type B timers with the following
specific features:
• A Type B timer can be concatenated with a Type
C timer to form a 32-bit timer
• The external clock input (TxCK) is always
synchronized to the internal device clock and the
clock synchronization is performed after the
prescaler.
A block diagram of the Type B timer is shown in
Figure 13-1.
Timer3 and Timer5 are Type C timers with the following
specific features:
• A Type C timer can be concatenated with a Type
B timer to form a 32-bit timer
• At least one Type C timer has the ability to trigger
an analog-to-digital conversion.
• The external clock input (TxCK) is always syn-
chronized to the internal device clock and the
clock synchronization is performed before the
prescaler
A block diagram of the Type C timer is shown in
Figure 13-2.
FIGURE 13-1: TYPE B TIMER BLOCK DIAGRAM (x = 2 or 4)
FIGURE 13-2: TYPE C TIMER BLOCK DIAGRAM (x = 3 or 5)
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 11. “Timers” (DS70205)
of the “dsPIC33F/PIC24H Family Refer-
ence Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Prescaler
(/n)
TGATE
TCS
00
10
x1
TMRx
Comparator
PRx
TGATE
Set TxIF flag
0
1
Sync
TCKPS<1:0>
Equal
Reset
TxCK
Gate
Sync
FCY
Falling Edge
Detect
Prescaler
(/n)
TCKPS<1:0>
Prescaler
(/n)
Gate
Sync
TGATE
TCS
00
10
x1
TMRx
Comparator
PRx
FCY
TGATE
Falling Edge
Detect Set TxIF flag
0
1
Sync
TCKPS<1:0>
Equal
Reset
TxCK
ADC SOC Trigger
Prescaler
(/n)
TCKPS<1:0>
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 194 © 2007-2012 Microchip Technology Inc.
The Timer2/3 and Timer4/5 modules can operate in
one of the following modes:
• Timer mode
• Gated Timer mode
• Synchronous Counter mode
In Timer and Gated Timer modes, the input clock is
derived from the internal instruction cycle clock (FCY).
In Synchronous Counter mode, the input clock is
derived from the external clock input at TxCK pin.
The timer modes are determined by the following bits:
• TCS (TxCON<1>): Timer Clock Source Control bit
• TGATE (TxCON<6>): Timer Gate Control bit
Timer control bit settings for different operating modes
are given in the Table 13-1.
TABLE 13-1: TIMER MODE SETTINGS
13.1 16-bit Operation
To configure any of the timers for individual 16-bit
operation:
1. Clear the T32 bit corresponding to that timer.
2. Select the timer prescaler ratio using the
TCKPS<1:0> bits.
3. Set the Clock and Gating modes using the TCS
and TGATE bits.
4. Load the timer period value into the PRx
register.
5. If interrupts are required, set the interrupt enable
bit, TxIE. Use the priority bits, TxIP<2:0>, to set
the interrupt priority.
6. Set the TON bit.
13.2 32-bit Operation
A 32-bit timer module can be formed by combining a
Type B and a Type C 16-bit timer module. For 32-bit
timer operation, the T32 control bit in the Type B Timer
Control register (TxCON<3>) must be set. The Type C
timer holds the most significant word (msw) and the
Type B timer holds the least significant word (lsw) for
32-bit operation.
When configured for 32-bit operation, only the Type B
Timer Control register (TxCON) bits are required for
setup and control. Type C timer control register bits are
ignored (except TSIDL bit).
For interrupt control, the combined 32-bit timer uses
the interrupt enable, interrupt flag and interrupt priority
control bits of the Type C timer. The interrupt control
and status bits for the Type B timer are ignored during
32-bit timer operation.
The Type B and Type C timers that can be combined to
form a 32-bit timer are listed in Table 13-2.
TABLE 13-2: 32-BIT TIMER
A block diagram representation of the 32-bit timer mod-
ule is shown in Figure 13-3. The 32-bit timer module
can operate in one of the following modes:
• Timer mode
• Gated Timer mode
• Synchronous Counter mode
To configure the features of Timer2/3 or Timer4/5 for
32-bit operation:
1. Set the T32 control bit.
2. Select the prescaler ratio for Timer2 or Timer4
using the TCKPS<1:0> bits.
3. Set the Clock and Gating modes using the
corresponding TCS and TGATE bits.
4. Load the timer period value. PR3 or PR5 con-
tains the most significant word of the value,
while PR2 or PR4 contains the least significant
word.
5. If interrupts are required, set the interrupt enable
bits, T3IE or T5IE. Use the priority bits,
T3IP<2:0> or T5IP<2:0> to set the interrupt pri-
ority. While Timer2 or Timer4 controls the timer,
the interrupt appears as a Timer3 or Timer5
interrupt.
6. Set the corresponding TON bit.
The timer value at any point is stored in the register
pair, TMR3:TMR2 or TMR5:TMR4, which always
contains the most significant word of the count, while
TMR2 or TMR4 contains the least significant word.
Mode TCS TGATE
Timer 00
Gated timer 01
Synchronous
counter
1x
Note: Only Timer2 and Timer3 can trigger a
DMA data transfer.
TYPE B Timer (lsw) TYPE C Timer (msw)
Timer2 Timer3
Timer4 Timer5
© 2007-2012 Microchip Technology Inc. DS70292G-page 195
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 13-3: 32-BIT TIMER BLOCK DIAGRAM
13.3 Timer Resources
Many useful resources related to Timers are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
13.3.1 KEY RESOURCES
•Section 11. “Timers” (DS70205)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Prescaler
(/n)
TGATE
TCS
00
10
x1
TMRx
PRx
TGATE
Set TyIF
0
1
Sync
TCKPS<1:0>
Equal
TxCK
Gate
Sync
FCY
Falling Edge
Detect
Prescaler
(/n)
TCKPS<1:0> TMRy
Comparator
PRy
Reset
msw
lsw
TMRyHLD
Data Bus <15:0>
Flag
ADC SOC trigger
Note 1: ADC trigger is available only on TMR3:TMR2 and TMR5:TMR2 32-bit timers.
2: Timer x is a Type B Timer (x = 2 and 4).
3: Timer y is a Type C Timer (y = 3 and 5).
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 196 © 2007-2012 Microchip Technology Inc.
13.4 Timerx/y Control Registers
REGISTER 13-1: TxCON: TIMER CONTROL REGISTER (x = 2 or 4, y = 3 or 5)
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON —TSIDL— — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 U-0
— TGATE TCKPS<1:0> T32 —TCS—
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TON: Timerx On bit
When T32 = 1 (in 32-bit Timer mode):
1 = Starts 32-bit TMRx:TMRy timer pair
0 = Stops 32-bit TMRx:TMRy timer pair
When T32 = 0 (in 16-bit Timer mode):
1 = Starts 16-bit timer
0 = Stops 16-bit timer
bit 14 Unimplemented: Read as ‘0’
bit 13 TSIDL: Stop in Idle Mode bit
1 = Discontinue timer operation when device enters Idle mode
0 = Continue timer operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 TGATE: Timerx Gated Time Accumulation Enable bit
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation enabled
0 = Gated time accumulation disabled
bit 5-4 TCKPS<1:0>: Timerx Input Clock Prescale Select bits
11 = 1:256 prescale value
10 = 1:64 prescale value
01 = 1:8 prescale value
00 = 1:1 prescale value
bit 3 T32: 32-bit Timerx Mode Select bit
1 = TMRx and TMRy form a 32-bit timer
0 = TMRx and TMRy form separate 16-bit timer
bit 2 Unimplemented: Read as ‘0’
bit 1 TCS: Timerx Clock Source Select bit
1 = External clock from TxCK pin
0 = Internal clock (FOSC/2)
bit 0 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 197
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 13-2: TxCON: TIMER CONTROL REGISTER (x = 3 OR 5)
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON(2) —TSIDL
(1) — — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 U-0
— TGATE
(2) TCKPS<1:0>(2) ——TCS
(2) —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 TON: Timery On bit(2)
1 = Starts 16-bit Timerx
0 = Stops 16-bit Timerx
bit 14 Unimplemented: Read as ‘0’
bit 13 TSIDL: Stop in Idle Mode bit(1)
1 = Discontinue timer operation when device enters Idle mode
0 = Continue timer operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 TGATE: Timerx Gated Time Accumulation Enable bit(2)
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation enabled
0 = Gated time accumulation disabled
bit 5-4 TCKPS<1:0>: Timerx Input Clock Prescale Select bits(2)
11 = 1:256 prescale value
10 = 1:64 prescale value
01 = 1:8 prescale value
00 = 1:1 prescale value
bit 3-2 Unimplemented: Read as ‘0’
bit 1 TCS: Timerx Clock Source Select bit(2)
1 = External clock from TxCK pin
0 = Internal clock (FOSC/2)
bit 0 Unimplemented: Read as ‘0’
Note 1: When 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), the TSIDL bit
must be cleared to operate the 32-bit timer in Idle mode.
2: When the 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), these bits
have no effect.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 198 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 199
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
14.0 INPUT CAPTURE
The input capture module is useful in applications
requiring frequency (period) and pulse measurement.
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices support
up to four input capture channels.
The input capture module captures the 16-bit value of
the selected Time Base register when an event occurs
at the ICx pin. The events that cause a capture event
are listed below in three categories:
1. Simple Capture Event modes:
- Capture timer value on every falling edge of
input at ICx pin
- Capture timer value on every rising edge of
input at ICx pin
2. Capture timer value on every edge (rising and
falling)
3. Prescaler Capture Event modes:
- Capture timer value on every 4th rising
edge of input at ICx pin
- Capture timer value on every 16th rising
edge of input at ICx pin
Each input capture channel can select one of two 16-
bit timers (Timer2 or Timer3) for the time base. The
selected timer can use either an internal or external
clock.
Other operational features include:
• Device wake-up from capture pin during CPU
Sleep and Idle modes
• Interrupt on input capture event
• 4-word FIFO buffer for capture values
- Interrupt optionally generated after 1, 2, 3 or
4 buffer locations are filled
• Use of input capture to provide additional sources
of external interrupts
FIGURE 14-1: INPUT CAPTURE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 12. “Input Capture”
(DS70198) of the “dsPIC33F/PIC24H
Family Reference Manual”, which is avail-
able from the Microchip website
(www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: Only IC1 and IC2 can trigger a DMA data
transfer. If DMA data transfers are
required, the FIFO buffer size must be set
to ‘1’ (ICI<1:0> = 00)
Note: An ‘x’ in a signal, register or bit name denotes the number of the capture channel.
FIFO CONTROL
ICxBUF
TMR2 TMR3
CaptureEvent
/N
FIFO
ICI<1:0>
ICM<2:0>
ICM<2:0>
101
100
011
010
001
001
111
To CPU
Set Flag ICxIF
(In IFSx Register)
Rising Edge Mode
Prescaler Mode
(4th Rising Edge)
Falling Edge Mode
Edge Detection
Prescaler Mode
(16th Rising Edge)
Sleep/Idle
Wake-up Mode
ICTMR
ICx pin
Mode
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 200 © 2007-2012 Microchip Technology Inc.
14.1 Input Capture Resources
Many useful resources related to Input Capture are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
14.1.1 KEY RESOURCES
•Section 12. “Input Capture” (DS70198)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 201
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
14.2 Input Capture Registers
REGISTER 14-1: ICxCON: INPUT CAPTURE x CONTROL REGISTER (x = 1, 2, 7 OR 8)
U-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
——ICSIDL— — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R-0, HC R-0, HC R/W-0 R/W-0 R/W-0
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 ICSIDL: Input Capture Module Stop in Idle Control bit
1 = Input capture module halts in CPU Idle mode
0 = Input capture module continues to operate in CPU Idle mode
bit 12-8 Unimplemented: Read as ‘0’
bit 7 ICTMR: Input Capture Timer Select bits
1 = TMR2 contents are captured on capture event
0 = TMR3 contents are captured on capture event
bit 6-5 ICI<1:0>: Select Number of Captures per Interrupt bits
11 = Interrupt on every fourth capture event
10 = Interrupt on every third capture event
01 = Interrupt on every second capture event
00 = Interrupt on every capture event
bit 4 ICOV: Input Capture Overflow Status Flag bit (read-only)
1 = Input capture overflow occurred
0 = No input capture overflow occurred
bit 3 ICBNE: Input Capture Buffer Empty Status bit (read-only)
1 = Input capture buffer is not empty, at least one more capture value can be read
0 = Input capture buffer is empty
bit 2-0 ICM<2:0>: Input Capture Mode Select bits
111 = Input capture functions as interrupt pin only when device is in Sleep or Idle mode
(Rising edge detect only, all other control bits are not applicable.)
110 = Unused (module disabled)
101 = Capture mode, every 16th rising edge
100 = Capture mode, every 4th rising edge
011 = Capture mode, every rising edge
010 = Capture mode, every falling edge
001 = Capture mode, every edge (rising and falling)
(ICI<1:0> bits do not control interrupt generation for this mode.)
000 = Input capture module turned off
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 202 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 203
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
15.0 OUTPUT COMPARE The Output Compare module can select either Timer2
or Timer3 for its time base. The module compares the
value of the timer with the value of one or two compare
registers depending on the operating mode selected.
The state of the output pin changes when the timer
value matches the compare register value. The Output
Compare module generates either a single output
pulse or a sequence of output pulses, by changing the
state of the output pin on the compare match events.
The Output Compare module can also generate
interrupts on compare match events.
The Output Compare module has multiple operating
modes:
• Active-Low One-Shot mode
• Active-High One-Shot mode
• Toggle mode
• Delayed One-Shot mode
• Continuous Pulse mode
• PWM mode without Fault protection
• PWM mode with Fault protection
FIGURE 15-1: OUTPUT COMPARE MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 13. “Output
Compare” (DS70209) of the “dsPIC33F/
PIC24H Family Reference Manual”,
which is available from the Microchip
website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
OCxR
Comparator
Output
Logic
OCM<2:0>
OCx
Set Flag bit
OCxIF
OCxRS
Mode Select
3
01
OCTSEL 01
16
16
OCFA
TMR2 TMR2
QS
R
TMR3 TMR3
Rollover Rollover
Output
Logic
Output
Enable Enable
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 204 © 2007-2012 Microchip Technology Inc.
15.1 Output Compare Modes
Configure the Output Compare modes by setting the
appropriate Output Compare Mode bits (OCM<2:0>) in
the Output Compare Control register (OCxCON<2:0>).
Table 15-1 lists the different bit settings for the Output
Compare modes. Figure 15-2 illustrates the output
compare operation for various modes. The user appli-
cation must disable the associated timer when writing
to the output compare control registers to avoid
malfunctions.
TABLE 15-1: OUTPUT COMPARE MODES
FIGURE 15-2: OUTPUT COMPARE OPERATION
Note 1: Only OC1 and OC2 can trigger a DMA
data transfer.
2: See Section 13. “Output Compare”
(DS70209) in the “dsPIC33F/PIC24H
Family Reference Manual” for OCxR and
OCxRS register restrictions.
OCM<2:0> Mode OCx Pin Initial State OCx Interrupt Generation
000 Module Disabled Controlled by GPIO register —
001 Active-Low One-Shot 0OCx Rising edge
010 Active-High One-Shot 1OCx Falling edge
011 Toggle Mode Current output is maintained OCx Rising and Falling edge
100 Delayed One-Shot 0OCx Falling edge
101 Continuous Pulse mode 0OCx Falling edge
110 PWM mode without fault
protection
0, if OCxR is zero
1, if OCxR is non-zero
No interrupt
111 PWM mode with fault protection 0, if OCxR is zero
1, if OCxR is non-zero
OCFA Falling edge for OC1 to OC4
OCxRS
TMRy
OCxR
Timer is reset on
period match
Continuous Pulse Mode
(OCM = 101)
PWM Mode
(OCM = 110 or 111)
Active-Low One-Shot
(OCM = 001)
Active-High One-Shot
(OCM = 010)
Toggle Mode
(OCM = 011)
Delayed One-Shot
(OCM = 100)
Output Compare
Mode enabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 205
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
15.2 Output Compare Resources
Many useful resources related to Output Compare are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
15.2.1 KEY RESOURCES
•Section 13. “Output Compare” (DS70209)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 206 © 2007-2012 Microchip Technology Inc.
15.3 Output Compare Control Register
REGISTER 15-1: OCxCON: OUTPUT COMPARE x CONTROL REGISTER (x = 1, 2, 3 OR 4)
U-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
——OCSIDL — — — — —
bit 15 bit 8
U-0 U-0 U-0 R-0 HC R/W-0 R/W-0 R/W-0 R/W-0
— — — OCFLT OCTSEL OCM<2:0>
bit 7 bit 0
Legend: HC = Cleared in Hardware HS = Set in Hardware
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 OCSIDL: Stop Output Compare in Idle Mode Control bit
1 = Output Compare x halts in CPU Idle mode
0 = Output Compare x continues to operate in CPU Idle mode
bit 12-5 Unimplemented: Read as ‘0’
bit 4 OCFLT: PWM Fault Condition Status bit
1 = PWM Fault condition has occurred (cleared in hardware only)
0 = No PWM Fault condition has occurred
(This bit is only used when OCM<2:0> = 111.)
bit 3 OCTSEL: Output Compare Timer Select bit
1 = Timer3 is the clock source for Compare x
0 = Timer2 is the clock source for Compare x
bit 2-0 OCM<2:0>: Output Compare Mode Select bits
111 = PWM mode on OCx, Fault pin enabled
110 = PWM mode on OCx, Fault pin disabled
101 = Initialize OCx pin low, generate continuous output pulses on OCx pin
100 = Initialize OCx pin low, generate single output pulse on OCx pin
011 = Compare event toggles OCx pin
010 = Initialize OCx pin high, compare event forces OCx pin low
001 = Initialize OCx pin low, compare event forces OCx pin high
000 = Output compare channel is disabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 207
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
16.0 SERIAL PERIPHERAL
INTERFACE (SPI)
The Serial Peripheral Interface (SPI) module is a syn-
chronous serial interface useful for communicating with
other peripheral or microcontroller devices. These
peripheral devices can be serial EEPROMs, shift regis-
ters, display drivers, analog-to-digital converters, etc.
The SPI module is compatible with Motorola® SPI and
SIOP.
Each SPI module consists of a 16-bit shift register,
SPIxSR (where x = 1 or 2), used for shifting data in and
out, and a buffer register, SPIxBUF. A control register,
SPIxCON, configures the module. Additionally, a status
register, SPIxSTAT, indicates status conditions.
The serial interface consists of 4 pins:
• SDIx (serial data input)
• SDOx (serial data output)
• SCKx (shift clock input or output)
• SSx (active-low slave select).
In Master mode operation, SCK is a clock output. In
Slave mode, it is a clock input.
FIGURE 16-1: SPI MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 18. “Serial Peripheral
Interface (SPI)” (DS70206) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Internal Data Bus
SDIx
SDOx
SSx
SCKx
SPIxSR
bit 0
Shift Control
Edge
Select
FCY
Primary
1:1/4/16/64
Enable
Prescaler
Sync
SPIxBUF
Control
Transfer
Transfer
Write SPIxBUF
Read SPIxBUF
16
SPIxCON1<1:0>
SPIxCON1<4:2>
Master Clock
Clock
Control
Secondary
Prescaler
1:1 to 1:8
SPIxRXB SPIxTXB
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 208 © 2007-2012 Microchip Technology Inc.
16.1 SPI Helpful Tips
1. In Frame mode, if there is a possibility that the
master may not be initialized before the slave:
a) If FRMPOL (SPIxCON2<13>) = 1, use a
pull-down resistor on SSx.
b) If FRMPOL = 0, use a pull-up resistor on
SSx.
2. In non-framed 3-wire mode, (i.e., not using SSx
from a master):
a) If CKP (SPIxCON1<6>) = 1, always place a
pull-up resistor on SSx.
b) If CKP = 0, always place a pull-down
resistor on SSx.
3. FRMEN (SPIxCON2<15>) = 1 and SSEN
(SPIxCON1<7>) = 1 are exclusive and invalid.
In Frame mode, SCKx is continuous and the
Frame sync pulse is active on the SSx pin,
which indicates the start of a data frame.
4. In Master mode only, set the SMP bit
(SPIxCON1<9>) to a ‘1’ for the fastest SPI data
rate possible. The SMP bit can only be set at the
same time or after the MSTEN bit
(SPIxCON1<5>) is set.
5. To avoid invalid slave read data to the master,
the user’s master software must guarantee
enough time for slave software to fill its write buf-
fer before the user application initiates a master
write/read cycle. It is always advisable to pre-
load the SPIxBUF transmit register in advance
of the next master transaction cycle. SPIxBUF is
transferred to the SPI shift register and is empty
once the data transmission begins.
16.2 SPI Resources
Many useful resources related to SPI are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
16.2.1 KEY RESOURCES
•Section 18. “Serial Peripheral Interface (SPI)”
(DS70206)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: This insures that the first frame
transmission after initialization is not
shifted or corrupted.
Note: This will insure that during power-up and
initialization the master/slave will not lose
sync due to an errant SCK transition that
would cause the slave to accumulate data
shift errors for both transmit and receive
appearing as corrupted data.
Note: Not all third-party devices support Frame
mode timing. Refer to the SPI electrical
characteristics for details.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 209
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
16.3 SPI Control Registers
REGISTER 16-1: SPIxSTAT: SPIx STATUS AND CONTROL REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
SPIEN —SPISIDL— — — — —
bit 15 bit 8
U-0 R/C-0 U-0 U-0 U-0 U-0 R-0 R-0
— SPIROV — — — — SPITBF SPIRBF
bit 7 bit 0
Legend: C = Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 SPIEN: SPIx Enable bit
1 = Enables module and configures SCKx, SDOx, SDIx and SSx as serial port pins
0 = Disables module
bit 14 Unimplemented: Read as ‘0’
bit 13 SPISIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 SPIROV: Receive Overflow Flag bit
1 = A new byte/word is completely received and discarded. The user software has not read the
previous data in the SPIxBUF register
0 = No overflow has occurred
bit 5-2 Unimplemented: Read as ‘0’
bit 1 SPITBF: SPIx Transmit Buffer Full Status bit
1 = Transmit not yet started, SPIxTXB is full
0 = Transmit started, SPIxTXB is empty
Automatically set in hardware when CPU writes SPIxBUF location, loading SPIxTXB.
Automatically cleared in hardware when SPIx module transfers data from SPIxTXB to SPIxSR.
bit 0 SPIRBF: SPIx Receive Buffer Full Status bit
1 = Receive complete, SPIxRXB is full
0 = Receive is not complete, SPIxRXB is empty
Automatically set in hardware when SPIx transfers data from SPIxSR to SPIxRXB.
Automatically cleared in hardware when core reads SPIxBUF location, reading SPIxRXB.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 210 © 2007-2012 Microchip Technology Inc.
REGISTER 16-2: SPIXCON1: SPIx CONTROL REGISTER 1
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — DISSCK DISSDO MODE16 SMP CKE(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SSEN(3) CKP MSTEN SPRE<2:0>(2) PPRE<1:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12 DISSCK: Disable SCKx pin bit (SPI Master modes only)
1 = Internal SPI clock is disabled, pin functions as I/O
0 = Internal SPI clock is enabled
bit 11 DISSDO: Disable SDOx pin bit
1 = SDOx pin is not used by module; pin functions as I/O
0 = SDOx pin is controlled by the module
bit 10 MODE16: Word/Byte Communication Select bit
1 = Communication is word-wide (16 bits)
0 = Communication is byte-wide (8 bits)
bit 9 SMP: SPIx Data Input Sample Phase bit
Master mode:
1 = Input data sampled at end of data output time
0 = Input data sampled at middle of data output time
Slave mode:
SMP must be cleared when SPIx is used in Slave mode.
bit 8 CKE: SPIx Clock Edge Select bit(1)
1 = Serial output data changes on transition from active clock state to Idle clock state (see bit 6)
0 = Serial output data changes on transition from Idle clock state to active clock state (see bit 6)
bit 7 SSEN: Slave Select Enable bit (Slave mode)(3)
1 = SSx pin used for Slave mode
0 = SSx pin not used by module. Pin controlled by port function
bit 6 CKP: Clock Polarity Select bit
1 = Idle state for clock is a high level; active state is a low level
0 = Idle state for clock is a low level; active state is a high level
bit 5 MSTEN: Master Mode Enable bit
1 = Master mode
0 = Slave mode
Note 1: The CKE bit is not used in the Framed SPI modes. Program this bit to ‘0’ for the Framed SPI modes
(FRMEN = 1).
2: Do not set both Primary and Secondary prescalers to the value of 1:1.
3: This bit must be cleared when FRMEN = 1.
© 2007-2012 Microchip Technology Inc. DS70292G-page 211
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 4-2 SPRE<2:0>: Secondary Prescale bits (Master mode)(2)
111 = Secondary prescale 1:1
110 = Secondary prescale 2:1
•
•
•
000 = Secondary prescale 8:1
bit 1-0 PPRE<1:0>: Primary Prescale bits (Master mode)(2)
11 = Primary prescale 1:1
10 = Primary prescale 4:1
01 = Primary prescale 16:1
00 = Primary prescale 64:1
REGISTER 16-2: SPIXCON1: SPIx CONTROL REGISTER 1 (CONTINUED)
Note 1: The CKE bit is not used in the Framed SPI modes. Program this bit to ‘0’ for the Framed SPI modes
(FRMEN = 1).
2: Do not set both Primary and Secondary prescalers to the value of 1:1.
3: This bit must be cleared when FRMEN = 1.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 212 © 2007-2012 Microchip Technology Inc.
REGISTER 16-3: SPIxCON2: SPIx CONTROL REGISTER 2
R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0
FRMEN SPIFSD FRMPOL — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 U-0
— — — — — — FRMDLY —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 FRMEN: Framed SPIx Support bit
1 = Framed SPIx support enabled (SSx pin used as frame sync pulse input/output)
0 = Framed SPIx support disabled
bit 14 SPIFSD: Frame Sync Pulse Direction Control bit
1 = Frame sync pulse input (slave)
0 = Frame sync pulse output (master)
bit 13 FRMPOL: Frame Sync Pulse Polarity bit
1 = Frame sync pulse is active-high
0 = Frame sync pulse is active-low
bit 12-2 Unimplemented: Read as ‘0’
bit 1 FRMDLY: Frame Sync Pulse Edge Select bit
1 = Frame sync pulse coincides with first bit clock
0 = Frame sync pulse precedes first bit clock
bit 0 Unimplemented: Read as ‘0’
This bit must not be set to ‘1’ by the user application.
© 2007-2012 Microchip Technology Inc. DS70292G-page 213
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
17.0 INTER-INTEGRATED
CIRCUIT™ (I2C™)
The Inter-Integrated Circuit (I2C) module provides
complete hardware support for both Slave and Multi-
Master modes of the I2C serial communication
standard, with a 16-bit interface.
The I2C module has a 2-pin interface:
• The SCLx pin is clock.
• The SDAx pin is data.
The I2C module offers the following key features:
•I
2C interface supporting both Master and Slave
modes of operation.
•I
2C Slave mode supports 7-bit and 10-bit
addressing
•I
2C Master mode supports 7 and 10-bit
addressing
•I
2C Port allows bidirectional transfers between
master and slaves.
• Serial clock synchronization for I2C port can be
used as a handshake mechanism to suspend and
resume serial transfer (SCLREL control).
•I
2C supports multi-master operation, detects bus
collision and arbitrates accordingly.
17.1 Operating Modes
The hardware fully implements all the master and slave
functions of the I2C Standard and Fast mode
specifications, as well as 7 and 10-bit addressing.
The I2C module can operate either as a slave or a
master on an I2C bus.
The following types of I2C operation are supported:
•I
2C slave operation with 7-bit addressing
•I
2C slave operation with 10-bit addressing
•I
2C master operation with 7-bit or 10-bit addressing
For details about the communication sequence in each
of these modes, refer to the “dsPIC33F/PIC24H Family
Reference Manual”. Please see the Microchip website
(www.microchip.com) for the latest dsPIC33F/PIC24H
Family Reference Manual chapters.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 19. “Inter-Integrated
Circuit™ (I2C™)” (DS70195) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization” in
this data sheet for device-specific register
and bit information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 214 © 2007-2012 Microchip Technology Inc.
FIGURE 17-1: I2C™ BLOCK DIAGRAM (X = 1)
Internal
Data Bus
SCLx
SDAx
Shift
Match Detect
I2CxADD
Start and Stop
Bit Detect
Clock
Address Match
Clock
Stretching
I2CxTRN
LSb
Shift Clock
BRG Down Counter
Reload
Control
TCY/2
Start and Stop
Bit Generation
Acknowledge
Generation
Collision
Detect
I2CxCON
I2CxSTAT
Control Logic
Read
LSb
Write
Read
I2CxBRG
I2CxRSR
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
I2CxMSK
I2CxRCV
© 2007-2012 Microchip Technology Inc. DS70292G-page 215
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
17.2 I2C Resources
Many useful resources related to I2C are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
17.2.1 KEY RESOURCES
•Section 11. “Inter-Integrated Circuit™ (I2C™)”
(DS70195)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
17.3 I2C Registers
I2CxCON and I2CxSTAT are control and status
registers, respectively. The I2CxCON register is
readable and writable. The lower six bits of I2CxSTAT
are read-only. The remaining bits of the I2CSTAT are
read/write:
• I2CxRSR is the shift register used for shifting data
internal to the module and the user application
has no access to it.
• I2CxRCV is the receive buffer and the register to
which data bytes are written, or from which data
bytes are read.
• I2CxTRN is the transmit register to which bytes
are written during a transmit operation.
• The I2CxADD register holds the slave address.
• A status bit, ADD10, indicates 10-bit Address
mode.
• The I2CxBRG acts as the Baud Rate Generator
(BRG) reload value.
In receive operations, I2CxRSR and I2CxRCV together
form a double-buffered receiver. When I2CxRSR
receives a complete byte, it is transferred to I2CxRCV,
and an interrupt pulse is generated.
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 216 © 2007-2012 Microchip Technology Inc.
REGISTER 17-1: I2CxCON: I2Cx CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-1 HC R/W-0 R/W-0 R/W-0 R/W-0
I2CEN — I2CSIDL SCLREL IPMIEN A10M DISSLW SMEN
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 HC R/W-0 HC R/W-0 HC R/W-0 HC R/W-0 HC
GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HS = Set in hardware HC = Cleared in hardware
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 I2CEN: I2Cx Enable bit
1 = Enables the I2Cx module and configures the SDAx and SCLx pins as serial port pins
0 = Disables the I2Cx module. All I2C™ pins are controlled by port functions
bit 14 Unimplemented: Read as ‘0’
bit 13 I2CSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters an Idle mode
0 = Continue module operation in Idle mode
bit 12 SCLREL: SCLx Release Control bit (when operating as I2C slave)
1 = Release SCLx clock
0 = Hold SCLx clock low (clock stretch)
If STREN = 1:
Bit is R/W (i.e., software can write ‘0’ to initiate stretch and write ‘1’ to release clock). Hardware clear
at beginning of slave transmission. Hardware clear at end of slave reception.
If STREN = 0:
Bit is R/S (i.e., software can only write ‘1’ to release clock). Hardware clear at beginning of slave
transmission.
bit 11 IPMIEN: Intelligent Peripheral Management Interface (IPMI) Enable bit
1 = IPMI mode is enabled; all addresses Acknowledged
0 = IPMI mode disabled
bit 10 A10M: 10-bit Slave Address bit
1 = I2CxADD is a 10-bit slave address
0 = I2CxADD is a 7-bit slave address
bit 9 DISSLW: Disable Slew Rate Control bit
1 = Slew rate control disabled
0 = Slew rate control enabled
bit 8 SMEN: SMBus Input Levels bit
1 = Enable I/O pin thresholds compliant with SMBus specification
0 = Disable SMBus input thresholds
bit 7 GCEN: General Call Enable bit (when operating as I2C slave)
1 = Enable interrupt when a general call address is received in the I2CxRSR
(module is enabled for reception)
0 = General call address disabled
bit 6 STREN: SCLx Clock Stretch Enable bit (when operating as I2C slave)
Used in conjunction with SCLREL bit.
1 = Enable software or receive clock stretching
0 = Disable software or receive clock stretching
© 2007-2012 Microchip Technology Inc. DS70292G-page 217
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 5 ACKDT: Acknowledge Data bit (when operating as I2C master, applicable during master receive)
Value that is transmitted when the software initiates an Acknowledge sequence.
1 = Send NACK during Acknowledge
0 = Send ACK during Acknowledge
bit 4 ACKEN: Acknowledge Sequence Enable bit
(when operating as I2C master, applicable during master receive)
1 = Initiate Acknowledge sequence on SDAx and SCLx pins and transmit ACKDT data bit.
Hardware clear at end of master Acknowledge sequence
0 = Acknowledge sequence not in progress
bit 3 RCEN: Receive Enable bit (when operating as I2C master)
1 = Enables Receive mode for I2C. Hardware clear at end of eighth bit of master receive data byte
0 = Receive sequence not in progress
bit 2 PEN: Stop Condition Enable bit (when operating as I2C master)
1 = Initiate Stop condition on SDAx and SCLx pins. Hardware clear at end of master Stop sequence
0 = Stop condition not in progress
bit 1 RSEN: Repeated Start Condition Enable bit (when operating as I2C master)
1 = Initiate Repeated Start condition on SDAx and SCLx pins. Hardware clear at end of
master Repeated Start sequence
0 = Repeated Start condition not in progress
bit 0 SEN: Start Condition Enable bit (when operating as I2C master)
1 = Initiate Start condition on SDAx and SCLx pins. Hardware clear at end of master Start sequence
0 = Start condition not in progress
REGISTER 17-1: I2CxCON: I2Cx CONTROL REGISTER (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 218 © 2007-2012 Microchip Technology Inc.
REGISTER 17-2: I2CxSTAT: I2Cx STATUS REGISTER
R-0 HSC R-0 HSC U-0 U-0 U-0 R/C-0 HS R-0 HSC R-0 HSC
ACKSTAT TRSTAT — — — BCL GCSTAT ADD10
bit 15 bit 8
R/C-0 HS R/C-0 HS R-0 HSC R/C-0 HSC R/C-0 HSC R-0 HSC R-0 HSC R-0 HSC
IWCOL I2COV D_A P S R_W RBF TBF
bit 7 bit 0
Legend: U = Unimplemented bit, read as ‘0’ C = Clear only bit
R = Readable bit W = Writable bit HS = Set in hardware HSC = Hardware set/cleared
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ACKSTAT: Acknowledge Status bit
(when operating as I2C™ master, applicable to master transmit operation)
1 = NACK received from slave
0 = ACK received from slave
Hardware set or clear at end of slave Acknowledge.
bit 14 TRSTAT: Transmit Status bit (when operating as I2C master, applicable to master transmit operation)
1 = Master transmit is in progress (8 bits + ACK)
0 = Master transmit is not in progress
Hardware set at beginning of master transmission. Hardware clear at end of slave Acknowledge.
bit 13-11 Unimplemented: Read as ‘0’
bit 10 BCL: Master Bus Collision Detect bit
1 = A bus collision has been detected during a master operation
0 = No collision
Hardware set at detection of bus collision.
bit 9 GCSTAT: General Call Status bit
1 = General call address was received
0 = General call address was not received
Hardware set when address matches general call address. Hardware clear at Stop detection.
bit 8 ADD10: 10-bit Address Status bit
1 = 10-bit address was matched
0 = 10-bit address was not matched
Hardware set at match of 2nd byte of matched 10-bit address. Hardware clear at Stop detection.
bit 7 IWCOL: Write Collision Detect bit
1 = An attempt to write the I2CxTRN register failed because the I2C module is busy
0 = No collision
Hardware set at occurrence of write to I2CxTRN while busy (cleared by software).
bit 6 I2COV: Receive Overflow Flag bit
1 = A byte was received while the I2CxRCV register is still holding the previous byte
0 = No overflow
Hardware set at attempt to transfer I2CxRSR to I2CxRCV (cleared by software).
bit 5 D_A: Data/Address bit (when operating as I2C slave)
1 = Indicates that the last byte received was data
0 = Indicates that the last byte received was device address
Hardware clear at device address match. Hardware set by reception of slave byte.
bit 4 P: Stop bit
1 = Indicates that a Stop bit has been detected last
0 = Stop bit was not detected last
Hardware set or clear when Start, Repeated Start or Stop detected.
© 2007-2012 Microchip Technology Inc. DS70292G-page 219
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 3 S: Start bit
1 = Indicates that a Start (or Repeated Start) bit has been detected last
0 = Start bit was not detected last
Hardware set or clear when Start, Repeated Start or Stop detected.
bit 2 R_W: Read/Write Information bit (when operating as I2C slave)
1 = Read – indicates data transfer is output from slave
0 = Write – indicates data transfer is input to slave
Hardware set or clear after reception of I2C device address byte.
bit 1 RBF: Receive Buffer Full Status bit
1 = Receive complete, I2CxRCV is full
0 = Receive not complete, I2CxRCV is empty
Hardware set when I2CxRCV is written with received byte. Hardware clear when software
reads I2CxRCV.
bit 0 TBF: Transmit Buffer Full Status bit
1 = Transmit in progress, I2CxTRN is full
0 = Transmit complete, I2CxTRN is empty
Hardware set when software writes I2CxTRN. Hardware clear at completion of data transmission.
REGISTER 17-2: I2CxSTAT: I2Cx STATUS REGISTER (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 220 © 2007-2012 Microchip Technology Inc.
REGISTER 17-3: I2CxMSK: I2Cx SLAVE MODE ADDRESS MASK REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — AMSK9 AMSK8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
AMSK7 AMSK6 AMSK5 AMSK4 AMSK3 AMSK2 AMSK1 AMSK0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 Unimplemented: Read as ‘0’
bit 9-0 AMSKx: Mask for Address Bit x Select bit
1 = Enable masking for bit x of incoming message address; bit match not required in this position
0 = Disable masking for bit x; bit match required in this position
© 2007-2012 Microchip Technology Inc. DS70292G-page 221
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
18.0 UNIVERSAL ASYNCHRONOUS
RECEIVER TRANSMITTER
(UART)
The Universal Asynchronous Receiver Transmitter
(UART) module is one of the serial I/O modules
available in the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 device family. The UART is a full-duplex
asynchronous system that can communicate with
peripheral devices, such as personal computers,
LIN 2.0, RS-232 and RS-485 interfaces. The module
also supports a hardware flow control option with the
UxCTS and UxRTS pins and also includes an IrDA®
encoder and decoder.
The primary features of the UART module are:
• Full-Duplex, 8-bit or 9-bit Data Transmission
through the UxTX and UxRX pins
• Even, Odd or No Parity Options (for 8-bit data)
• One or two stop bits
• Hardware flow control option with UxCTS and
UxRTS pins
• Fully integrated Baud Rate Generator with 16-bit
prescaler
• Baud rates ranging from 10 Mbps to 38 bps at 40
MIPS
• 4-deep First-In First-Out (FIFO) Transmit Data
buffer
• 4-deep FIFO Receive Data buffer
• Parity, framing and buffer overrun error detection
• Support for 9-bit mode with Address Detect
(9th bit = 1)
• Transmit and Receive interrupts
• A separate interrupt for all UART error conditions
• Loopback mode for diagnostic support
• Support for sync and break characters
• Support for automatic baud rate detection
•IrDA
® encoder and decoder logic
• 16x baud clock output for IrDA® support
A simplified block diagram of the UART module is
shown in Figure 18-1. The UART module consists of
these key hardware elements:
• Baud Rate Generator
• Asynchronous Transmitter
• Asynchronous Receiver
FIGURE 18-1: UART SIMPLIFIED BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 17. “UART”
(DS70188) of the “dsPIC33F/PIC24H
Family Reference Manual”, which is
available from the Microchip website
(www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note 1: Both UART1 and UART2 can trigger a DMA data transfer.
2: If DMA transfers are required, the UART TX/RX FIFO buffer must be set to a size of 1 byte/word
(i.e., UTXISEL<1:0> = 00 and URXISEL<1:0> = 00).
UxRX
Hardware Flow Control
UART Receiver
UART Transmitter UxTX
Baud Rate Generator
UxRTS/BLCKx
IrDA®
UxCTS
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 222 © 2007-2012 Microchip Technology Inc.
18.1 UART Helpful Tips
1. In multi-node direct-connect UART networks,
UART receive inputs react to the
complementary logic level defined by the
URXINV bit (UxMODE<4>), which defines the
idle state, the default of which is logic high, (i.e.,
URXINV = 0). Because remote devices do not
initialize at the same time, it is likely that one of
the devices, because the RX line is floating, will
trigger a start bit detection and will cause the
first byte received after the device has been ini-
tialized to be invalid. To avoid this situation, the
user should use a pull-up or pull-down resistor
on the RX pin depending on the value of the
URXINV bit.
a) If URXINV = 0, use a pull-up resistor on the
RX pin.
b) If URXINV = 1, use a pull-down resistor on
the RX pin.
2. The first character received on a wake-up from
Sleep mode caused by activity on the UxRX pin
of the UART module will be invalid. In Sleep
mode, peripheral clocks are disabled. By the
time the oscillator system has restarted and
stabilized from Sleep mode, the baud rate bit
sampling clock relative to the incoming UxRX bit
timing is no longer synchronized, resulting in the
first character being invalid. This is to be
expected.
18.2 UART Resources
Many useful resources related to UART are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
18.2.1 KEY RESOURCES
•Section 17. “UART” (DS70188)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 223
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
18.3 UART Control Registers
REGISTER 18-1: UxMODE: UARTx MODE REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
UARTEN(1) — USIDL IREN(2) RTSMD —UEN<1:0>
bit 15 bit 8
R/W-0 HC R/W-0 R/W-0 HC R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL
bit 7 bit 0
Legend: HC = Hardware cleared
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 UARTEN: UARTx Enable bit(1)
1 = UARTx is enabled; all UARTx pins are controlled by UARTx as defined by UEN<1:0>
0 = UARTx is disabled; all UARTx pins are controlled by port latches; UARTx power consumption
minimal
bit 14 Unimplemented: Read as ‘0’
bit 13 USIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12 IREN: IrDA® Encoder and Decoder Enable bit(2)
1 =IrDA
® encoder and decoder enabled
0 =IrDA
® encoder and decoder disabled
bit 11 RTSMD: Mode Selection for UxRTS Pin bit
1 =UxRTS pin in Simplex mode
0 =UxRTS
pin in Flow Control mode
bit 10 Unimplemented: Read as ‘0’
bit 9-8 UEN<1:0>: UARTx Enable bits
11 = UxTX, UxRX and BCLK pins are enabled and used; UxCTS pin controlled by port latches
10 = UxTX, UxRX, UxCTS and UxRTS pins are enabled and used
01 = UxTX, UxRX and UxRTS pins are enabled and used; UxCTS pin controlled by port latches
00 = UxTX and UxRX pins are enabled and used; UxCTS and UxRTS/BCLK pins controlled by
port latches
bit 7 WAKE: Wake-up on Start bit Detect During Sleep Mode Enable bit
1 = UARTx continues to sample the UxRX pin; interrupt generated on falling edge; bit cleared
in hardware on following rising edge
0 = No wake-up enabled
bit 6 LPBACK: UARTx Loopback Mode Select bit
1 = Enable Loopback mode
0 = Loopback mode is disabled
bit 5 ABAUD: Auto-Baud Enable bit
1 = Enable baud rate measurement on the next character – requires reception of a Sync field (55h)
before other data; cleared in hardware upon completion
0 = Baud rate measurement disabled or completed
Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for
information on enabling the UART module for receive or transmit operation.
2: This feature is only available for the 16x BRG mode (BRGH = 0).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 224 © 2007-2012 Microchip Technology Inc.
bit 4 URXINV: Receive Polarity Inversion bit
1 = UxRX Idle state is ‘0’
0 = UxRX Idle state is ‘1’
bit 3 BRGH: High Baud Rate Enable bit
1 = BRG generates 4 clocks per bit period (4x baud clock, High-Speed mode)
0 = BRG generates 16 clocks per bit period (16x baud clock, Standard mode)
bit 2-1 PDSEL<1:0>: Parity and Data Selection bits
11 = 9-bit data, no parity
10 = 8-bit data, odd parity
01 = 8-bit data, even parity
00 = 8-bit data, no parity
bit 0 STSEL: Stop Bit Selection bit
1 = Two Stop bits
0 = One Stop bit
REGISTER 18-1: UxMODE: UARTx MODE REGISTER (CONTINUED)
Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for
information on enabling the UART module for receive or transmit operation.
2: This feature is only available for the 16x BRG mode (BRGH = 0).
© 2007-2012 Microchip Technology Inc. DS70292G-page 225
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 18-2: UxSTA: UARTx STATUS AND CONTROL REGISTER
R/W-0 R/W-0 R/W-0 U-0 R/W-0 HC R/W-0 R-0 R-1
UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN(1) UTXBF TRMT
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R-1 R-0 R-0 R/C-0 R-0
URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA
bit 7 bit 0
Legend: HC = Hardware cleared C = Clear only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15,13 UTXISEL<1:0>: Transmission Interrupt Mode Selection bits
11 = Reserved; do not use
10 = Interrupt when a character is transferred to the Transmit Shift register, and as a result, the
transmit buffer becomes empty
01 = Interrupt when the last character is shifted out of the Transmit Shift register; all transmit
operations are completed
00 = Interrupt when a character is transferred to the Transmit Shift register (this implies there is
at least one character open in the transmit buffer)
bit 14 UTXINV: Transmit Polarity Inversion bit
If IREN = 0:
1 = UxTX Idle state is ‘0’
0 = UxTX Idle state is ‘1’
If IREN = 1:
1 =IrDA
® encoded UxTX Idle state is ‘1’
0 =IrDA
® encoded UxTX Idle state is ‘0’
bit 12 Unimplemented: Read as ‘0’
bit 11 UTXBRK: Transmit Break bit
1 = Send Sync Break on next transmission – Start bit, followed by twelve ‘0’ bits, followed by Stop bit;
cleared by hardware upon completion
0 = Sync Break transmission disabled or completed
bit 10 UTXEN: Transmit Enable bit(1)
1 = Transmit enabled, UxTX pin controlled by UARTx
0 = Transmit disabled, any pending transmission is aborted and buffer is reset. UxTX pin controlled
by port
bit 9 UTXBF: Transmit Buffer Full Status bit (read-only)
1 = Transmit buffer is full
0 = Transmit buffer is not full, at least one more character can be written
bit 8 TRMT: Transmit Shift Register Empty bit (read-only)
1 = Transmit Shift Register is empty and transmit buffer is empty (the last transmission has completed)
0 = Transmit Shift Register is not empty, a transmission is in progress or queued
bit 7-6 URXISEL<1:0>: Receive Interrupt Mode Selection bits
11 = Interrupt is set on UxRSR transfer making the receive buffer full (i.e., has 4 data characters)
10 = Interrupt is set on UxRSR transfer making the receive buffer 3/4 full (i.e., has 3 data characters)
0x = Interrupt is set when any character is received and transferred from the UxRSR to the receive
buffer. Receive buffer has one or more characters.
Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for
information on enabling the UART module for transmit operation.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 226 © 2007-2012 Microchip Technology Inc.
bit 5 ADDEN: Address Character Detect bit (bit 8 of received data = 1)
1 = Address Detect mode enabled. If 9-bit mode is not selected, this does not take effect
0 = Address Detect mode disabled
bit 4 RIDLE: Receiver Idle bit (read-only)
1 = Receiver is Idle
0 = Receiver is active
bit 3 PERR: Parity Error Status bit (read-only)
1 = Parity error has been detected for the current character (character at the top of the receive FIFO)
0 = Parity error has not been detected
bit 2 FERR: Framing Error Status bit (read-only)
1 = Framing error has been detected for the current character (character at the top of the receive
FIFO)
0 = Framing error has not been detected
bit 1 OERR: Receive Buffer Overrun Error Status bit (read/clear only)
1 = Receive buffer has overflowed
0 = Receive buffer has not overflowed. Clearing a previously set OERR bit (1→ 0 transition) resets
the receiver buffer and the UxRSR to the empty state.
bit 0 URXDA: Receive Buffer Data Available bit (read-only)
1 = Receive buffer has data, at least one more character can be read
0 = Receive buffer is empty
REGISTER 18-2: UxSTA: UARTx STATUS AND CONTROL REGISTER (CONTINUED)
Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for
information on enabling the UART module for transmit operation.
© 2007-2012 Microchip Technology Inc. DS70292G-page 227
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
19.0 ENHANCED CAN (ECAN™)
MODULE
19.1 Overview
The Enhanced Controller Area Network (ECAN™)
module is a serial interface, useful for communicating
with other CAN modules or microcontroller devices.
This interface/protocol was designed to allow commu-
nications within noisy environments. The
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices contain up to
two ECAN modules.
The ECAN module is a communication controller
implementing the CAN 2.0 A/B protocol, as defined in
the BOSCH CAN specification. The module supports
CAN 1.2, CAN 2.0A, CAN 2.0B Passive and CAN 2.0B
Active versions of the protocol. The module implemen-
tation is a full CAN system. The CAN specification is
not covered within this data sheet. The reader can refer
to the BOSCH CAN specification for further details.
The module features are as follows:
• Implementation of the CAN protocol, CAN 1.2,
CAN 2.0A and CAN 2.0B
• Standard and extended data frames
• 0-8 bytes data length
• Programmable bit rate up to 1 Mbit/sec
• Automatic response to remote transmission
requests
• Up to eight transmit buffers with application speci-
fied prioritization and abort capability (each buffer
can contain up to 8 bytes of data)
• Up to 32 receive buffers (each buffer can contain up
to 8 bytes of data)
• Up to 16 full (standard/extended identifier)
acceptance filters
• Three full acceptance filter masks
• DeviceNet™ addressing support
• Programmable wake-up functionality with integrated
low-pass filter
• Programmable Loopback mode supports self-test
operation
• Signaling via interrupt capabilities for all CAN
receiver and transmitter error states
• Programmable clock source
• Programmable link to input capture module (IC2 for
CAN1) for time-stamping and network synchroniza-
tion
• Low-power Sleep and Idle mode
The CAN bus module consists of a protocol engine and
message buffering/control. The CAN protocol engine
handles all functions for receiving and transmitting
messages on the CAN bus. Messages are transmitted
by first loading the appropriate data registers. Status
and errors can be checked by reading the appropriate
registers. Any message detected on the CAN bus is
checked for errors and then matched against filters to
see if it should be received and stored in one of the
receive registers.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 21. “Enhanced Control-
ler Area Network (ECAN™)” (DS70185)
of the “dsPIC33F/PIC24H Family Refer-
ence Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 228 © 2007-2012 Microchip Technology Inc.
19.2 Frame Types
The ECAN module transmits various types of frames
which include data messages, or remote transmission
requests initiated by the user, as other frames that are
automatically generated for control purposes. The
following frame types are supported:
• Standard Data Frame:
A standard data frame is generated by a node
when the node wishes to transmit data. It includes
an 11-bit Standard Identifier (SID), but not an 18-
bit Extended Identifier (EID).
• Extended Data Frame:
An extended data frame is similar to a standard
data frame, but includes an extended identifier as
well.
• Remote Frame:
It is possible for a destination node to request the
data from the source. For this purpose, the
destination node sends a remote frame with an
identifier that matches the identifier of the
required data frame. The appropriate data source
node sends a data frame as a response to this
remote request.
• Error Frame:
An error frame is generated by any node that
detects a bus error. An error frame consists of two
fields: an error flag field and an error delimiter
field.
• Overload Frame:
An overload frame can be generated by a node as
a result of two conditions. First, the node detects a
dominant bit during interframe space which is an
illegal condition. Second, due to internal condi-
tions, the node is not yet able to start reception of
the next message. A node can generate a maxi-
mum of 2 sequential overload frames to delay the
start of the next message.
• Interframe Space:
Interframe space separates a proceeding frame
(of whatever type) from a following data or remote
frame.
© 2007-2012 Microchip Technology Inc. DS70292G-page 229
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 19-1: ECAN™ MODULE BLOCK DIAGRAM
Message Assembly
CAN Protocol
Engine
C1Tx
Buffer
C1Rx
RXF14 Filter
RXF13 Filter
RXF12 Filter
RXF11 Filter
RXF10 Filter
RXF9 Filter
RXF8 Filter
RXF7 Filter
RXF6 Filter
RXF5 Filter
RXF4 Filter
RXF3 Filter
RXF2 Filter
RXF1 Filter
RXF0 Filter
Transmit Byte
Sequencer
RXM1 Mask
RXM0 Mask
Control
Configuration
Logic
CPU
Bus
Interrupts
TRB0 TX/RX Buffer Control Register
DMA Controller
RXF15 Filter
RXM2 Mask
TRB7 TX/RX Buffer Control Register
TRB6 TX/RX Buffer Control Register
TRB5 TX/RX Buffer Control Register
TRB4 TX/RX Buffer Control Register
TRB3 TX/RX Buffer Control Register
TRB2 TX/RX Buffer Control Register
TRB1 TX/RX Buffer Control Register
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 230 © 2007-2012 Microchip Technology Inc.
19.3 Modes of Operation
The ECAN module can operate in one of several
operation modes selected by the user. These modes
include:
• Initialization mode
• Disable mode
• Normal Operation mode
• Listen Only mode
• Listen All Messages mode
• Loopback mode
Modes are requested by setting the REQOP<2:0> bits
(CiCTRL1<10:8>). Entry into a mode is Acknowledged
by monitoring the OPMODE<2:0> bits
(CiCTRL1<7:5>). The module does not change the
mode and the OPMODE bits until a change in mode is
acceptable, generally during bus Idle time, which is
defined as at least 11 consecutive recessive bits.
19.3.1 INITIALIZATION MODE
In the Initialization mode, the module does not transmit
or receive. The error counters are cleared and the inter-
rupt flags remain unchanged. The user application has
access to Configuration registers that are access
restricted in other modes. The module protects the user
from accidentally violating the CAN protocol through
programming errors. All registers which control the
configuration of the module cannot be modified while
the module is on-line. The ECAN module is not allowed
to enter the Configuration mode while a transmission is
taking place. The Configuration mode serves as a lock
to protect the following registers:
• All Module Control registers
• Baud Rate and Interrupt Configuration registers
• Bus Timing registers
• Identifier Acceptance Filter registers
• Identifier Acceptance Mask registers
19.3.2 DISABLE MODE
In Disable mode, the module does not transmit or
receive. The module has the ability to set the WAKIF bit
due to bus activity, however, any pending interrupts
remains and the error counters retains their value.
If the REQOP<2:0> bits (CiCTRL1<10:8>) = 001, the
module enters the Module Disable mode. If the module is
active, the module waits for 11 recessive bits on the CAN
bus, detect that condition as an Idle bus, then accept the
module disable command. When the OPMODE<2:0>
bits (CiCTRL1<7:5>) = 001, that indicates whether the
module successfully went into Module Disable mode.
The I/O pins reverts to normal I/O function when the
module is in the Module Disable mode.
The module can be programmed to apply a low-pass
filter function to the CiRX input line while the module or
the CPU is in Sleep mode. The WAKFIL bit
(CiCFG2<14>) enables or disables the filter.
19.3.3 NORMAL OPERATION MODE
Normal Operation mode is selected when
REQOP<2:0> = 000. In this mode, the module is
activated and the I/O pins assumes the CAN bus
functions. The module transmits and receive CAN bus
messages via the CiTX and CiRX pins.
19.3.4 LISTEN ONLY MODE
If the Listen Only mode is activated, the module on the
CAN bus is passive. The transmitter buffers revert to
the port I/O function. The receive pins remain inputs.
For the receiver, no error flags or Acknowledge signals
are sent. The error counters are deactivated in this
state. The Listen Only mode can be used for detecting
the baud rate on the CAN bus. To use this, it is
necessary that there are at least two further nodes that
communicate with each other.
19.3.5 LISTEN ALL MESSAGES MODE
The module can be set to ignore all errors and receive
any message. The Listen All Messages mode is acti-
vated by setting REQOP<2:0> = ‘111’. In this mode,
the data which is in the message assembly buffer, until
the time an error occurred, is copied in the receive buf-
fer and can be read via the CPU interface.
19.3.6 LOOPBACK MODE
If the Loopback mode is activated, the module con-
nects the internal transmit signal to the internal receive
signal at the module boundary. The transmit and
receive pins revert to their port I/O function.
Note: Typically, if the ECAN module is allowed to
transmit in a particular mode of operation
and a transmission is requested immedi-
ately after the ECAN module has been
placed in that mode of operation, the mod-
ule waits for 11 consecutive recessive bits
on the bus before starting transmission. If
the user switches to Disable mode within
this 11-bit period, then this transmission is
aborted and the corresponding TXABT bit
is set and TXREQ bit is cleared.
© 2007-2012 Microchip Technology Inc. DS70292G-page 231
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
19.4 ECAN Resources
Many useful resources related to ECAN are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
19.4.1 KEY RESOURCES
•Section 21. “Enhanced Controller Area Network
(ECAN™)” (DS70185)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 232 © 2007-2012 Microchip Technology Inc.
19.5 ECAN Control Registers
REGISTER 19-1: CiCTRL1: ECAN™ CONTROL REGISTER 1
U-0 U-0 R/W-0 R/W-0 r-0 R/W-1 R/W-0 R/W-0
—— CSIDL ABAT — REQOP<2:0>
bit 15 bit 8
R-1 R-0 R-0 U-0 R/W-0 U-0 U-0 R/W-0
OPMODE<2:0> —CANCAP ——WIN
bit 7 bit 0
Legend: r = Bit is reserved
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 CSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12 ABAT: Abort All Pending Transmissions bit
1 = Signal all transmit buffers to abort transmission.
0 = Module will clear this bit when all transmissions are aborted
bit 11 Reserved: Do not use
bit 10-8 REQOP<2:0>: Request Operation Mode bits
111 = Set Listen All Messages mode
110 = Reserved
101 = Reserved
100 = Set Configuration mode
011 = Set Listen Only Mode
010 = Set Loopback mode
001 = Set Disable mode
000 = Set Normal Operation mode
bit 7-5 OPMODE<2:0>: Operation Mode bits
111 = Module is in Listen All Messages mode
110 = Reserved
101 = Reserved
100 = Module is in Configuration mode
011 = Module is in Listen Only mode
010 = Module is in Loopback mode
001 = Module is in Disable mode
000 = Module is in Normal Operation mode
bit 4 Unimplemented: Read as ‘0’
bit 3 CANCAP: CAN Message Receive Timer Capture Event Enable bit
1 = Enable input capture based on CAN message receive
0 = Disable CAN capture
bit 2-1 Unimplemented: Read as ‘0’
bit 0 WIN: SFR Map Window Select bit
1 = Use filter window
0 = Use buffer window
© 2007-2012 Microchip Technology Inc. DS70292G-page 233
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-2: CiCTRL2: ECAN™ CONTROL REGISTER 2
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0
— — — DNCNT<4:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 Unimplemented: Read as ‘0’
bit 4-0 DNCNT<4:0>: DeviceNet™ Filter Bit Number bits
10010-11111 = Invalid selection
10001 = Compare up to data byte 3, bit 6 with EID<17>
•
•
•
00001 = Compare up to data byte 1, bit 7 with EID<0>
00000 = Do not compare data bytes
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 234 © 2007-2012 Microchip Technology Inc.
REGISTER 19-3: CiVEC: ECAN™ INTERRUPT CODE REGISTER
U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0
— — — FILHIT<4:0>
bit 15 bit 8
U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0
—ICODE<6:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 FILHIT<4:0>: Filter Hit Number bits
10000-11111 = Reserved
01111 = Filter 15
•
•
•
00001 = Filter 1
00000 = Filter 0
bit 7 Unimplemented: Read as ‘0’
bit 6-0 ICODE<6:0>: Interrupt Flag Code bits
1000101-1111111 = Reserved
1000100 = FIFO almost full interrupt
1000011 = Receiver overflow interrupt
1000010 = Wake-up interrupt
1000001 = Error interrupt
1000000 = No interrupt
•
•
•
0010000-0111111 = Reserved
0001111 = RB15 buffer Interrupt
•
•
•
0001001 = RB9 buffer interrupt
0001000 = RB8 buffer interrupt
0000111 = TRB7 buffer interrupt
0000110 = TRB6 buffer interrupt
0000101 = TRB5 buffer interrupt
0000100 = TRB4 buffer interrupt
0000011 = TRB3 buffer interrupt
0000010 = TRB2 buffer interrupt
0000001 = TRB1 buffer interrupt
0000000 = TRB0 Buffer interrupt
© 2007-2012 Microchip Technology Inc. DS70292G-page 235
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-4: CiFCTRL: ECAN™ FIFO CONTROL REGISTER
R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0
DMABS<2:0> — — — — —
bit 15 bit 8
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — FSA<4:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 DMABS<2:0>: DMA Buffer Size bits
111 = Reserved
110 = 32 buffers in DMA RAM
101 = 24 buffers in DMA RAM
100 = 16 buffers in DMA RAM
011 = 12 buffers in DMA RAM
010 = 8 buffers in DMA RAM
001 = 6 buffers in DMA RAM
000 = 4 buffers in DMA RAM
bit 12-5 Unimplemented: Read as ‘0’
bit 4-0 FSA<4:0>: FIFO Area Starts with Buffer bits
11111 = Read buffer RB31
11110 = Read buffer RB30
•
•
•
00001 = TX/RX buffer TRB1
00000 = TX/RX buffer TRB0
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 236 © 2007-2012 Microchip Technology Inc.
REGISTER 19-5: CiFIFO: ECAN™ FIFO STATUS REGISTER
U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0
—— FBP<5:0>
bit 15 bit 8
U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0
—— FNRB<5:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 FBP<5:0>: FIFO Buffer Pointer bits
011111 = RB31 buffer
011110 = RB30 buffer
•
•
•
000001 = TRB1 buffer
000000 = TRB0 buffer
bit 7-6 Unimplemented: Read as ‘0’
bit 5-0 FNRB<5:0>: FIFO Next Read Buffer Pointer bits
011111 = RB31 buffer
011110 = RB30 buffer
•
•
•
000001 = TRB1 buffer
000000 = TRB0 buffer
© 2007-2012 Microchip Technology Inc. DS70292G-page 237
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-6: CiINTF: ECAN™ INTERRUPT FLAG REGISTER
U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0
—— TXBO TXBP RXBP TXWAR RXWAR EWARN
bit 15 bit 8
R/C-0 R/C-0 R/C-0 U-0 R/C-0 R/C-0 R/C-0 R/C-0
IVRIF WAKIF ERRIF — FIFOIF RBOVIF RBIF TBIF
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 TXBO: Transmitter in Error State Bus Off bit
1 = Transmitter is in Bus Off state
0 = Transmitter is not in Bus Off state
bit 12 TXBP: Transmitter in Error State Bus Passive bit
1 = Transmitter is in Bus Passive state
0 = Transmitter is not in Bus Passive state
bit 11 RXBP: Receiver in Error State Bus Passive bit
1 = Receiver is in Bus Passive state
0 = Receiver is not in Bus Passive state
bit 10 TXWAR: Transmitter in Error State Warning bit
1 = Transmitter is in Error Warning state
0 = Transmitter is not in Error Warning state
bit 9 RXWAR: Receiver in Error State Warning bit
1 = Receiver is in Error Warning state
0 = Receiver is not in Error Warning state
bit 8 EWARN: Transmitter or Receiver in Error State Warning bit
1 = Transmitter or Receiver is in Error State Warning state
0 = Transmitter or Receiver is not in Error State Warning state
bit 7 IVRIF: Invalid Message Received Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 6 WAKIF: Bus Wake-up Activity Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 5 ERRIF: Error Interrupt Flag bit (multiple sources in CiINTF<13:8> register)
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 4 Unimplemented: Read as ‘0’
bit 3 FIFOIF: FIFO Almost Full Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 2 RBOVIF: RX Buffer Overflow Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 1 RBIF: RX Buffer Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
bit 0 TBIF: TX Buffer Interrupt Flag bit
1 = Interrupt Request has occurred
0 = Interrupt Request has not occurred
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 238 © 2007-2012 Microchip Technology Inc.
REGISTER 19-7: CiINTE: ECAN™ INTERRUPT ENABLE REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
IVRIE WAKIE ERRIE — FIFOIE RBOVIE RBIE TBIE
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 IVRIE: Invalid Message Received Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 6 WAKIE: Bus Wake-up Activity Interrupt Flag bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 5 ERRIE: Error Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 4 Unimplemented: Read as ‘0’
bit 3 FIFOIE: FIFO Almost Full Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 2 RBOVIE: RX Buffer Overflow Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 1 RBIE: RX Buffer Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
bit 0 TBIE: TX Buffer Interrupt Enable bit
1 = Interrupt Request Enabled
0 = Interrupt Request not enabled
© 2007-2012 Microchip Technology Inc. DS70292G-page 239
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-8: CiEC: ECAN™ TRANSMIT/RECEIVE ERROR COUNT REGISTER
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
TERRCNT<7:0>
bit 15 bit 8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RERRCNT<7:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 TERRCNT<7:0>: Transmit Error Count bits
bit 7-0 RERRCNT<7:0>: Receive Error Count bits
REGISTER 19-9: CiCFG1: ECAN™ BAUD RATE CONFIGURATION REGISTER 1
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SJW<1:0> BRP<5:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-6 SJW<1:0>: Synchronization Jump Width bits
11 = Length is 4 x TQ
10 = Length is 3 x TQ
01 = Length is 2 x TQ
00 = Length is 1 x TQ
bit 5-0 BRP<5:0>: Baud Rate Prescaler bits
11 1111 = TQ = 2 x 64 x 1/FCAN
•
•
•
00 0010 = TQ = 2 x 3 x 1/FCAN
00 0001 = TQ = 2 x 2 x 1/FCAN
00 0000 = TQ = 2 x 1 x 1/FCAN
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 240 © 2007-2012 Microchip Technology Inc.
REGISTER 19-10: CiCFG2: ECAN™ BAUD RATE CONFIGURATION REGISTER 2
U-0 R/W-x U-0 U-0 U-0 R/W-x R/W-x R/W-x
— WAKFIL — — — SEG2PH<2:0>
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
SEG2PHTS SAM SEG1PH<2:0> PRSEG<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 WAKFIL: Select CAN bus Line Filter for Wake-up bit
1 = Use CAN bus line filter for wake-up
0 = CAN bus line filter is not used for wake-up
bit 13-11 Unimplemented: Read as ‘0’
bit 10-8 SEG2PH<2:0>: Phase Segment 2 bits
111 = Length is 8 x TQ
•
•
•
000 = Length is 1 x TQ
bit 7 SEG2PHTS: Phase Segment 2 Time Select bit
1 = Freely programmable
0 = Maximum of SEG1PH bits or Information Processing Time (IPT), whichever is greater
bit 6 SAM: Sample of the CAN bus Line bit
1 = Bus line is sampled three times at the sample point
0 = Bus line is sampled once at the sample point
bit 5-3 SEG1PH<2:0>: Phase Segment 1 bits
111 = Length is 8 x TQ
•
•
•
000 = Length is 1 x TQ
bit 2-0 PRSEG<2:0>: Propagation Time Segment bits
111 = Length is 8 x TQ
•
•
•
000 = Length is 1 x TQ
© 2007-2012 Microchip Technology Inc. DS70292G-page 241
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-11: CiFEN1: ECAN™ ACCEPTANCE FILTER ENABLE REGISTER
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
FLTEN15 FLTEN14 FLTEN13 FLTEN12 FLTEN11 FLTEN10 FLTEN9 FLTEN8
bit 15 bit 8
R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
FLTEN7 FLTEN6 FLTEN5 FLTEN4 FLTEN3 FLTEN2 FLTEN1 FLTEN0
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 FLTENn: Enable Filter n to Accept Messages bits
1 = Enable Filter n
0 = Disable Filter n
REGISTER 19-12: CiBUFPNT1: ECAN™ FILTER 0-3 BUFFER POINTER REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F3BP<3:0> F2BP<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F1BP<3:0> F0BP<3:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 F3BP<3:0>: RX Buffer mask for Filter 3
1111 = Filter hits received in RX FIFO buffer
1110 = Filter hits received in RX Buffer 14
•
•
•
0001 = Filter hits received in RX Buffer 1
0000 = Filter hits received in RX Buffer 0
bit 11-8 F2BP<3:0>: RX Buffer mask for Filter 2 (same values as bit 15-12)
bit 7-4 F1BP<3:0>: RX Buffer mask for Filter 1 (same values as bit 15-12)
bit 3-0 F0BP<3:0>: RX Buffer mask for Filter 0 (same values as bit 15-12)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 242 © 2007-2012 Microchip Technology Inc.
REGISTER 19-13: CiBUFPNT2: ECAN™ FILTER 4-7 BUFFER POINTER REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F7BP<3:0> F6BP<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F5BP<3:0> F4BP<3:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 F7BP<3:0>: RX Buffer mask for Filter 7
1111 = Filter hits received in RX FIFO buffer
1110 = Filter hits received in RX Buffer 14
•
•
•
0001 = Filter hits received in RX Buffer 1
0000 = Filter hits received in RX Buffer 0
bit 11-8 F6BP<3:0>: RX Buffer mask for Filter 6 (same values as bit 15-12)
bit 7-4 F5BP<3:0>: RX Buffer mask for Filter 5 (same values as bit 15-12)
bit 3-0 F4BP<3:0>: RX Buffer mask for Filter 4 (same values as bit 15-12)
REGISTER 19-14: CiBUFPNT3: ECAN™ FILTER 8-11 BUFFER POINTER REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F11BP<3:0> F10BP<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F9BP<3:0> F8BP<3:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 F11BP<3:0>: RX Buffer mask for Filter 11
1111 = Filter hits received in RX FIFO buffer
1110 = Filter hits received in RX Buffer 14
•
•
•
0001 = Filter hits received in RX Buffer 1
0000 = Filter hits received in RX Buffer 0
bit 11-8 F10BP<3:0>: RX Buffer mask for Filter 10 (same values as bit 15-12)
bit 7-4 F9BP<3:0>: RX Buffer mask for Filter 9 (same values as bit 15-12)
bit 3-0 F8BP<3:0>: RX Buffer mask for Filter 8 (same values as bit 15-12)
© 2007-2012 Microchip Technology Inc. DS70292G-page 243
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-15: CiBUFPNT4: ECAN™ FILTER 12-15 BUFFER POINTER REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F15BP<3:0> F14BP<3:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F13BP<3:0> F12BP<3:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 F15BP<3:0>: RX Buffer mask for Filter 15
1111 = Filter hits received in RX FIFO buffer
1110 = Filter hits received in RX Buffer 14
•
•
•
0001 = Filter hits received in RX Buffer 1
0000 = Filter hits received in RX Buffer 0
bit 11-8 F14BP<3:0>: RX Buffer mask for Filter 14 (same values as bit 15-12)
bit 7-4 F13BP<3:0>: RX Buffer mask for Filter 13 (same values as bit 15-12)
bit 3-0 F12BP<3:0>: RX Buffer mask for Filter 12 (same values as bit 15-12)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 244 © 2007-2012 Microchip Technology Inc.
REGISTER 19-16: CiRXFnSID: ECAN™ ACCEPTANCE FILTER STANDARD IDENTIFIER REGISTER
n (n = 0-15)
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3
bit 15 bit 8
R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x
SID2 SID1 SID0 —EXIDE —EID17EID16
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 SID<10:0>: Standard Identifier bits
1 = Message address bit SIDx must be ‘1’ to match filter
0 = Message address bit SIDx must be ‘0’ to match filter
bit 4 Unimplemented: Read as ‘0’
bit 3 EXIDE: Extended Identifier Enable bit
If MIDE = 1:
1 = Match only messages with extended identifier addresses
0 = Match only messages with standard identifier addresses
If MIDE = 0:
Ignore EXIDE bit.
bit 2 Unimplemented: Read as ‘0’
bit 1-0 EID<17:16>: Extended Identifier bits
1 = Message address bit EIDx must be ‘1’ to match filter
0 = Message address bit EIDx must be ‘0’ to match filter
© 2007-2012 Microchip Technology Inc. DS70292G-page 245
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-17: CiRXFnEID: ECAN™ ACCEPTANCE FILTER EXTENDED IDENTIFIER REGISTER
n (n = 0-15)
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 EID<15:0>: Extended Identifier bits
1 = Message address bit EIDx must be ‘1’ to match filter
0 = Message address bit EIDx must be ‘0’ to match filter
REGISTER 19-18: CiFMSKSEL1:
ECAN™
FILTER 7-0 MASK SELECTION REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F7MSK<1:0> F6MSK<1:0> F5MSK<1:0> F4MSK<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F3MSK<1:0> F2MSK<1:0> F1MSK<1:0> F0MSK<1:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 F7MSK<1:0>: Mask Source for Filter 7 bit
11 = No mask
10 = Acceptance Mask 2 registers contain mask
01 = Acceptance Mask 1 registers contain mask
00 = Acceptance Mask 0 registers contain mask
bit 13-12 F6MSK<1:0>: Mask Source for Filter 6 bit (same values as bit 15-14)
bit 11-10 F5MSK<1:0>: Mask Source for Filter 5 bit (same values as bit 15-14)
bit 9-8 F4MSK<1:0>: Mask Source for Filter 4 bit (same values as bit 15-14)
bit 7-6 F3MSK<1:0>: Mask Source for Filter 3 bit (same values as bit 15-14)
bit 5-4 F2MSK<1:0>: Mask Source for Filter 2 bit (same values as bit 15-14)
bit 3-2 F1MSK<1:0>: Mask Source for Filter 1 bit (same values as bit 15-14)
bit 1-0 F0MSK<1:0>: Mask Source for Filter 0 bit (same values as bit 15-14)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 246 © 2007-2012 Microchip Technology Inc.
REGISTER 19-19: CiFMSKSEL2:
ECAN™
FILTER 15-8 MASK SELECTION REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F15MSK<1:0> F14MSK<1:0> F13MSK<1:0> F12MSK<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
F11MSK<1:0> F10MSK<1:0> F9MSK<1:0> F8MSK<1:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 F15MSK<1:0>: Mask Source for Filter 15 bit
11 = No mask
10 = Acceptance Mask 2 registers contain mask
01 = Acceptance Mask 1 registers contain mask
00 = Acceptance Mask 0 registers contain mask
bit 13-12 F14MSK<1:0>: Mask Source for Filter 14 bit (same values as bit 15-14)
bit 11-10 F13MSK<1:0>: Mask Source for Filter 13 bit (same values as bit 15-14)
bit 9-8 F12MSK<1:0>: Mask Source for Filter 12 bit (same values as bit 15-14)
bit 7-6 F11MSK<1:0>: Mask Source for Filter 11 bit (same values as bit 15-14)
bit 5-4 F10MSK<1:0>: Mask Source for Filter 10 bit (same values as bit 15-14)
bit 3-2 F9MSK<1:0>: Mask Source for Filter 9 bit (same values as bit 15-14)
bit 1-0 F8MSK<1:0>: Mask Source for Filter 8 bit (same values as bit 15-14)
© 2007-2012 Microchip Technology Inc. DS70292G-page 247
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-20: CiRXMnSID:
ECAN™
ACCEPTANCE FILTER MASK STANDARD IDENTIFIER
REGISTER n (n = 0-2)
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3
bit 15 bit 8
R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x
SID2 SID1 SID0 —MIDE —EID17EID16
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5 SID<10:0>: Standard Identifier bits
1 = Include bit SIDx in filter comparison
0 = Bit SIDx is don’t care in filter comparison
bit 4 Unimplemented: Read as ‘0’
bit 3 MIDE: Identifier Receive Mode bit
1 = Match only message types (standard or extended address) that correspond to EXIDE bit in filter
0 = Match either standard or extended address message if filters match
(i.e., if (Filter SID) = (Message SID) or if (Filter SID/EID) = (Message SID/EID))
bit 2 Unimplemented: Read as ‘0’
bit 1-0 EID<17:16>: Extended Identifier bits
1 = Include bit EIDx in filter comparison
0 = Bit EIDx is don’t care in filter comparison
REGISTER 19-21: CiRXMnEID:
ECAN™
ACCEPTANCE FILTER MASK EXTENDED IDENTIFIER
REGISTER n (n = 0-2)
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 EID<15:0>: Extended Identifier bits
1 = Include bit EIDx in filter comparison
0 = Bit EIDx is don’t care in filter comparison
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 248 © 2007-2012 Microchip Technology Inc.
REGISTER 19-22: CiRXFUL1: ECAN™ RECEIVE BUFFER FULL REGISTER 1
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXFUL15 RXFUL14 RXFUL13 RXFUL12 RXFUL11 RXFUL10 RXFUL9 RXFUL8
bit 15 bit 8
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXFUL7 RXFUL6 RXFUL5 RXFUL4 RXFUL3 RXFUL2 RXFUL1 RXFUL0
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RXFUL<15:0>: Receive Buffer n Full bits
1 = Buffer is full (set by module)
0 = Buffer is empty
REGISTER 19-23: CiRXFUL2: ECAN™ RECEIVE BUFFER FULL REGISTER 2
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXFUL31 RXFUL30 RXFUL29 RXFUL28 RXFUL27 RXFUL26 RXFUL25 RXFUL24
bit 15 bit 8
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXFUL23 RXFUL22 RXFUL21 RXFUL20 RXFUL19 RXFUL18 RXFUL17 RXFUL16
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RXFUL<31:16>: Receive Buffer n Full bits
1 = Buffer is full (set by module)
0 = Buffer is empty
© 2007-2012 Microchip Technology Inc. DS70292G-page 249
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 19-24: CiRXOVF1: ECAN™ RECEIVE BUFFER OVERFLOW REGISTER 1
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF9 RXOVF8
bit 15 bit 8
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RXOVF<15:0>: Receive Buffer n Overflow bits
1 = Module attempted to write to a full buffer (set by module)
0 = No overflow condition
REGISTER 19-25: CiRXOVF2: ECAN™ RECEIVE BUFFER OVERFLOW REGISTER 2
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24
bit 15 bit 8
R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0
RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RXOVF<31:16>: Receive Buffer n Overflow bits
1 = Module attempted to write to a full buffer (set by module)
0 = No overflow condition
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 250 © 2007-2012 Microchip Technology Inc.
REGISTER 19-26: CiTRmnCON: ECAN™ TX/RX BUFFER m CONTROL REGISTER
(m = 0,2,4,6; n = 1,3,5,7)
R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
TXENn TXABTn TXLARBn TXERRn TXREQn RTRENn TXnPRI<1:0>
bit 15 bit 8
R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
TXENm TXABTm(1) TXLARBm(1) TXERRm(1) TXREQm RTRENm TXmPRI<1:0>
bit 7 bit 0
Legend: C = Writable bit, but only ‘0’ can be written to clear the bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 See Definition for Bits 7-0, Controls Buffer n
bit 7 TXENm: TX/RX Buffer Selection bit
1 = Buffer TRBn is a transmit buffer
0 = Buffer TRBn is a receive buffer
bit 6 TXABTm: Message Aborted bit(1)
1 = Message was aborted
0 = Message completed transmission successfully
bit 5 TXLARBm: Message Lost Arbitration bit(1)
1 = Message lost arbitration while being sent
0 = Message did not lose arbitration while being sent
bit 4 TXERRm: Error Detected During Transmission bit(1)
1 = A bus error occurred while the message was being sent
0 = A bus error did not occur while the message was being sent
bit 3 TXREQm: Message Send Request bit
1 = Requests that a message be sent. The bit automatically clears when the message is successfully
sent
0 = Clearing the bit to ‘0’ while set requests a message abort
bit 2 RTRENm: Auto-Remote Transmit Enable bit
1 = When a remote transmit is received, TXREQ will be set
0 = When a remote transmit is received, TXREQ will be unaffected
bit 1-0 TXmPRI<1:0>: Message Transmission Priority bits
11 = Highest message priority
10 = High intermediate message priority
01 = Low intermediate message priority
00 = Lowest message priority
Note 1: This bit is cleared when the TXREQ bit is set.
Note: The buffers, SID, EID, DLC, Data Field and Receive Status registers are located in DMA RAM.
© 2007-2012 Microchip Technology Inc. DS70292G-page 251
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
19.6 ECAN Message Buffers
ECAN Message Buffers are part of DMA RAM Memory.
They are not ECAN special function registers. The user
application must directly write into the DMA RAM area
that is configured for ECAN Message Buffers. The
location and size of the buffer area is defined by the
user application.
BUFFER 19-1:
ECAN™
MESSAGE BUFFER WORD 0
U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x
— — — SID10 SID9 SID8 SID7 SID6
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
SID5 SID4 SID3 SID2 SID1 SID0 SRR IDE
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-2 SID<10:0>: Standard Identifier bits
bit 1 SRR: Substitute Remote Request bit
1 = Message will request remote transmission
0 = Normal message
bit 0 IDE: Extended Identifier bit
1 = Message will transmit extended identifier
0 = Message will transmit standard identifier
BUFFER 19-2:
ECAN™
MESSAGE BUFFER WORD 1
U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x
— — — —EID17EID16EID15EID14
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID13 EID12 EID11 EID10 EID9 EID8 EID7 EID6
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-0 EID<17:6>: Extended Identifier bits
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 252 © 2007-2012 Microchip Technology Inc.
(
BUFFER 19-3:
ECAN™
MESSAGE BUFFER WORD 2
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID5 EID4 EID3 EID2 EID1 EID0 RTR RB1
bit 15 bit 8
U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x
— — — RB0 DLC3 DLC2 DLC1 DLC0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-10 EID<5:0>: Extended Identifier bits
bit 9 RTR: Remote Transmission Request bit
1 = Message will request remote transmission
0 = Normal message
bit 8 RB1: Reserved Bit 1
User must set this bit to ‘0’ per CAN protocol.
bit 7-5 Unimplemented: Read as ‘0’
bit 4 RB0: Reserved Bit 0
User must set this bit to ‘0’ per CAN protocol.
bit 3-0 DLC<3:0>: Data Length Code bits
BUFFER 19-4: ECAN
™
MESSAGE BUFFER WORD 3
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 1
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Byte 1<15:8>: ECAN™ Message Byte 0
bit 7-0 Byte 0<7:0>: ECAN Message Byte 1
© 2007-2012 Microchip Technology Inc. DS70292G-page 253
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
BUFFER 19-5: ECAN
™
MESSAGE BUFFER WORD 4
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 3
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 2
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Byte 3<15:8>: ECAN™ Message Byte 3
bit 7-0 Byte 2<7:0>: ECAN Message Byte 2
BUFFER 19-6: ECAN
™
MESSAGE BUFFER WORD 5
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 5
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 4
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Byte 5<15:8>: ECAN™ Message Byte 5
bit 7-0 Byte 4<7:0>: ECAN Message Byte 4
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 254 © 2007-2012 Microchip Technology Inc.
BUFFER 19-7: ECAN
™
MESSAGE BUFFER WORD 6
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 7
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 6
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Byte 7<15:8>: ECAN™ Message Byte 7
bit 7-0 Byte 6<7:0>: ECAN Message Byte 6
BUFFER 19-8:
ECAN™
MESSAGE BUFFER WORD 7
U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x
— — — FILHIT<4:0>(1)
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-8 FILHIT<4:0>: Filter Hit Code bits(1)
Encodes number of filter that resulted in writing this buffer.
bit 7-0 Unimplemented: Read as ‘0’
Note 1: These bits are only written by the module for receive buffers, and are unused for transmit buffers.
© 2007-2012 Microchip Technology Inc. DS70292G-page 255
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
20.0 DATA CONVERTER
INTERFACE (DCI) MODULE
20.1 Module Introduction
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 Data Converter
Interface (DCI) module allows simple interfacing of
devices, such as audio coder/decoders (Codecs), ADC
and D/A converters. The following interfaces are
supported:
• Framed Synchronous Serial Transfer (Single or
Multi-Channel)
• Inter-IC Sound (I2S) Interface
• AC-Link Compliant mode
• The DCI module provides the following general
features:
• Programmable word size up to 16 bits
• Supports up to 16 time slots, for a maximum
frame size of 256 bits
• Data buffering for up to 4 samples without CPU
overhead
FIGURE 20-1: DCI MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 20. “Data Converter
Interface (DCI)” (DS70288) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
BCG Control bits
16-bit Data Bus
Sample Rate
Generator
SCKD
FSD
DCI Buffer
Frame
Synchronization
Generator
Control Unit
DCI Shift Register
Receive Buffer
Registers w/Shadow
FOSC/4
Word Size Selection bits
Frame Length Selection bits
DCI Mode Selection bits
CSCK
COFS
CSDI
CSDO
15 0
Transmit Buffer
Registers w/Shadow
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 256 © 2007-2012 Microchip Technology Inc.
20.2 DCI Resources
Many useful resources related to DCI are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
20.2.1 KEY RESOURCES
•Section 20. “Data Converter Interface (DCI)”
(DS70288)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 257
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
20.3 DCI Control Registers
REGISTER 20-1: DCICON1: DCI CONTROL REGISTER 1
R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
DCIEN —DCISIDL— DLOOP CSCKD CSCKE COFSD
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 R/W-0 R/W-0
UNFM CSDOM DJST — — —COFSM<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DCIEN: DCI Module Enable bit
1 = Module is enabled
0 = Module is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 DCISIDL: DCI Stop in Idle Control bit
1 = Module will halt in CPU Idle mode
0 = Module will continue to operate in CPU Idle mode
bit 12 Unimplemented: Read as ‘0’
bit 11 DLOOP: Digital Loopback Mode Control bit
1 = Digital Loopback mode is enabled. CSDI and CSDO pins internally connected.
0 = Digital Loopback mode is disabled
bit 10 CSCKD: Sample Clock Direction Control bit
1 = CSCK pin is an input when DCI module is enabled
0 = CSCK pin is an output when DCI module is enabled
bit 9 CSCKE: Sample Clock Edge Control bit
1 = Data changes on serial clock falling edge, sampled on serial clock rising edge
0 = Data changes on serial clock rising edge, sampled on serial clock falling edge
bit 8 COFSD: Frame Synchronization Direction Control bit
1 = COFS pin is an input when DCI module is enabled
0 = COFS pin is an output when DCI module is enabled
bit 7 UNFM: Underflow Mode bit
1 = Transmit last value written to the transmit registers on a transmit underflow
0 = Transmit ‘0’s on a transmit underflow
bit 6 CSDOM: Serial Data Output Mode bit
1 = CSDO pin will be tri-stated during disabled transmit time slots
0 = CSDO pin drives ‘0’s during disabled transmit time slots
bit 5 DJST: DCI Data Justification Control bit
1 = Data transmission/reception is begun during the same serial clock cycle as the frame
synchronization pulse
0 = Data transmission/reception is begun one serial clock cycle after frame synchronization pulse
bit 4-2 Unimplemented: Read as ‘0’
bit 1-0 COFSM<1:0>: Frame Sync Mode bits
11 = 20-bit AC-Link mode
10 = 16-bit AC-Link mode
01 = I2S Frame Sync mode
00 = Multi-Channel Frame Sync mode
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 258 © 2007-2012 Microchip Technology Inc.
REGISTER 20-2: DCICON2: DCI CONTROL REGISTER 2
U-0 U-0 U-0 U-0 R/W-0 R/W-0 U-0 R/W-0
— — — — BLEN<1:0> —COFSG3
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
COFSG<2:0> — WS<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-10 BLEN<1:0>: Buffer Length Control bits
11 = Four data words will be buffered between interrupts
10 = Three data words will be buffered between interrupts
01 = Two data words will be buffered between interrupts
00 = One data word will be buffered between interrupts
bit 9 Unimplemented: Read as ‘0’
bit 8-5 COFSG<3:0>: Frame Sync Generator Control bits
1111 = Data frame has 16 words
•
•
•
0010 = Data frame has 3 words
0001 = Data frame has 2 words
0000 = Data frame has 1 word
bit 4 Unimplemented: Read as ‘0’
bit 3-0 WS<3:0>: DCI Data Word Size bits
1111 = Data word size is 16 bits
•
•
•
0100 = Data word size is 5 bits
0011 = Data word size is 4 bits
0010 = Invalid Selection. Do not use. Unexpected results may occur.
0001 = Invalid Selection. Do not use. Unexpected results may occur.
0000 = Invalid Selection. Do not use. Unexpected results may occur.
© 2007-2012 Microchip Technology Inc. DS70292G-page 259
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 20-3: DCICON3: DCI CONTROL REGISTER 3
U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — —BCG<11:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BCG<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-0 BCG<11:0>: DCI Bit Clock Generator Control bits
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 260 © 2007-2012 Microchip Technology Inc.
REGISTER 20-4: DCISTAT: DCI STATUS REGISTER
U-0 U-0 U-0 U-0 R-0 R-0 R-0 R-0
— — — — SLOT<3:0>
bit 15 bit 8
U-0 U-0 U-0 U-0 R-0 R-0 R-0 R-0
— — — — ROV RFUL TUNF TMPTY
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-8 SLOT<3:0>: DCI Slot Status bits
1111 = Slot 15 is currently active
•
•
•
0010 = Slot 2 is currently active
0001 = Slot 1 is currently active
0000 = Slot 0 is currently active
bit 7-4 Unimplemented: Read as ‘0’
bit 3 ROV: Receive Overflow Status bit
1 = A receive overflow has occurred for at least one receive register
0 = A receive overflow has not occurred
bit 2 RFUL: Receive Buffer Full Status bit
1 = New data is available in the receive registers
0 = The receive registers have old data
bit 1 TUNF: Transmit Buffer Underflow Status bit
1 = A transmit underflow has occurred for at least one transmit register
0 = A transmit underflow has not occurred
bit 0 TMPTY: Transmit Buffer Empty Status bit
1 = The transmit registers are empty
0 = The transmit registers are not empty
© 2007-2012 Microchip Technology Inc. DS70292G-page 261
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 20-5: RSCON: DCI RECEIVE SLOT CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RSE15 RSE14 RSE13 RSE12 RSE11 RSE10 RSE9 RSE8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
RSE7 RSE6 RSE5 RSE4 RSE3 RSE2 RSE1 RSE0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 RSE<15:0>: Receive Slot Enable bits
1 = CSDI data is received during the individual time slot n
0 = CSDI data is ignored during the individual time slot n
REGISTER 20-6: TSCON: DCI TRANSMIT SLOT CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TSE15 TSE14 TSE13 TSE12 TSE11 TSE10 TSE9 TSE8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TSE7 TSE6 TSE5 TSE4 TSE3 TSE2 TSE1 TSE0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 TSE<15:0>: Transmit Slot Enable Control bits
1 = Transmit buffer contents are sent during the individual time slot n
0 = CSDO pin is tri-stated or driven to logic ‘0’, during the individual time slot, depending on the state
of the CSDOM bit
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 262 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 263
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
21.0 10-BIT/12-BIT ANALOG-TO-
DIGITAL CONVERTER (ADC)
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices have up
to 13 ADC input channels.
The AD12B bit (AD1CON1<10>) allows each of the
ADC modules to be configured by the user as either a
10-bit, 4-sample/hold ADC (default configuration) or a
12-bit, 1-sample/hold ADC.
21.1 Key Features
The 10-bit ADC configuration has the following key
features:
• Successive Approximation (SAR) conversion
• Conversion speeds of up to 1.1 Msps
• Up to 13 analog input pins
• External voltage reference input pins
• Simultaneous sampling of up to four analog input
pins
• Automatic Channel Scan mode
• Selectable conversion trigger source
• Selectable Buffer Fill modes
• Four result alignment options (signed/unsigned,
fractional/integer)
• Operation during CPU Sleep and Idle modes
The 12-bit ADC configuration supports all the above
features, except:
• In the 12-bit configuration, conversion speeds of
up to 500 ksps are supported
• There is only one sample/hold amplifier in the
12-bit configuration, so simultaneous sampling of
multiple channels is not supported
Depending on the particular device pinout, the ADC
can have up to 13 analog input pins, designated AN0
through AN12. In addition, there are two analog input
pins for external voltage reference connections. These
voltage reference inputs can be shared with other ana-
log input pins. The actual number of analog input pins
and external voltage reference input configuration
depends on the specific device.
Block diagrams of the ADC module are shown in
Figure 21-1 and Figure 21-2.
21.2 ADC Initialization
The following configuration steps should be performed.
1. Configure the ADC module:
a) Select port pins as analog inputs
(AD1PCFGH<15:0> or AD1PCFGL<15:0>)
b) Select voltage reference source to match
expected range on analog inputs
(AD1CON2<15:13>)
c) Select the analog conversion clock to
match desired data rate with processor
clock (AD1CON3<7:0>)
d) Determine how many S/H channels are
used (AD1CON2<9:8> and
AD1PCFGH<15:0> or AD1PCFGL<15:0>)
e) Select the appropriate sample/conversion
sequence (AD1CON1<7:5> and
AD1CON3<12:8>)
f) Select how conversion results are
presented in the buffer (AD1CON1<9:8>)
g) Turn on ADC module (AD1CON1<15>)
2. Configure ADC interrupt (if required):
a) Clear the AD1IF bit
b) Select ADC interrupt priority
21.3 ADC and DMA
If more than one conversion result needs to be buffered
before triggering an interrupt, DMA data transfers can
be used. ADC1 can trigger a DMA data transfer. If
ADC1 is selected as the DMA IRQ source, a DMA
transfer occurs when the AD1IF bit gets set as a result
of an ADC1 sample conversion sequence.
The SMPI<3:0> bits (AD1CON2<5:2>) are used to
select how often the DMA RAM buffer pointer is
incremented.
The ADDMABM bit (AD1CON1<12>) determines how
the conversion results are filled in the DMA RAM buffer
area being used for ADC. If this bit is set, DMA buffers
are written in the order of conversion. The module
provides an address to the DMA channel that is the
same as the address used for the non-DMA stand-
alone buffer. If the ADDMABM bit is cleared, then DMA
buffers are written in Scatter/Gather mode. The module
provides a scatter/gather address to the DMA channel,
based on the index of the analog input and the size of
the DMA buffer.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 16. “Analog-to-Digital
Converter (ADC)” (DS70183) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: The ADC module needs to be disabled
before modifying the AD12B bit.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 264 © 2007-2012 Microchip Technology Inc.
FIGURE 21-1: ADC1 MODULE BLOCK DIAGRAM FOR dsPIC33FJ32GP304,
dsPIC33FJ64GP204/804 AND dsPIC33FJ128GP204/804 DEVICES
S/H0
S/H1
ADC1BUF0
AN0
AN12
AN1
VREFL
CH0SB<4:0>
CH0NA CH0NB
+
-
AN0
AN3
CH123SA
AN9
VREFL
CH123SB
CH123NA CH123NB
AN6
+
-
S/H2
AN1
AN4
CH123SA
AN10
VREFL
CH123SB
CH123NA CH123NB
AN7
+
-
S/H3
AN2
AN5
CH123SA
AN11
VREFL
CH123SB
CH123NA CH123NB
AN8
+
-
CH1(2)
CH0
CH2(2)
CH3(2)
CH0SA<4:0>
CHANNEL
SCAN
CSCNA
Alternate
Note 1: VREF+, VREF- inputs can be multiplexed with other analog inputs.
2: Channels 1, 2 and 3 are not applicable for the 12-bit mode of operation.
Input Selection
VCFG<2:0>
AVDD
AVSS
VREF-(1)
VREF+(1)
SAR ADC
VREFH VREFL
© 2007-2012 Microchip Technology Inc. DS70292G-page 265
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 21-2: ADC1 MODULE BLOCK DIAGRAM FOR dsPIC33FJ32GP302,
dsPIC33FJ64GP202/802 AND dsPIC33FJ128GP202/802 DEVICES
S/H0
S/H1
AN0
AN12
AN1
VREFL
CH0SB<4:0>
CH0NA CH0NB
+
-
AN0
AN3
CH123SA
AN9
VREFL
CH123SB
CH123NA CH123NB
+
-
S/H2
AN1
AN4
CH123SA
AN10
VREFL
CH123SB
CH123NA CH123NB
+
-
S/H3
AN2
AN5
CH123SA
AN11
VREFL
CH123SB
CH123NA CH123NB
+
-
CH1(2)
CH0
CH2(2)
CH3(2)
CH0SA<4:0>
CHANNEL
SCAN
CSCNA
Alternate
Note 1: VREF+, VREF- inputs can be multiplexed with other analog inputs.
2: Channels 1, 2 and 3 are not applicable for the 12-bit mode of operation.
Input Selection
ADC1BUF0
VCFG<2:0>
AVDD
AVSS
VREF-(1)
VREF+(1)
VREFH VREFL
SAR ADC
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 266 © 2007-2012 Microchip Technology Inc.
FIGURE 21-3: ADC CONVERSION CLOCK PERIOD BLOCK DIAGRAM
1
0
ADC Internal
RC Clock(2)
TOSC(1) X2
ADC Conversion
Clock Multiplier
1, 2, 3, 4, 5,..., 64
AD1CON3<15>
TCY
TAD
6
AD1CON3<5:0>
Note 1: Refer to Figure 9-2 for the derivation of Fosc when the PLL is enabled. If the PLL is not used, Fosc is equal to
the clock source frequency. Tosc = 1/Fosc.
2: See the ADC electrical characteristics for the exact RC clock value.
© 2007-2012 Microchip Technology Inc. DS70292G-page 267
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
21.4 ADC Helpful Tips
1. The SMPI<3:0> (AD1CON2<5:2>) control bits:
a) Determine when the ADC interrupt flag is
set and an interrupt is generated if enabled.
b) When the CSCNA bit (AD1CON2<10>) is
set to ‘1’, determines when the ADC analog
scan channel list defined in the AD1CSSL/
AD1CSSH registers starts over from the
beginning.
c) On devices without a DMA peripheral,
determines when ADC result buffer pointer
to ADC1BUF0-ADC1BUFF, gets reset back
to the beginning at ADC1BUF0.
2. On devices without a DMA module, the ADC has
16 result buffers. ADC conversion results are
stored sequentially in ADC1BUF0-ADC1BUFF
regardless of which analog inputs are being
used subject to the SMPI<3:0> bits
(AD1CON2<5:2>) and the condition described
in 1c above. There is no relationship between
the ANx input being measured and which ADC
buffer (ADC1BUF0-ADC1BUFF) that the
conversion results will be placed in.
3. On devices with a DMA module, the ADC mod-
ule has only 1 ADC result buffer, (i.e.,
ADC1BUF0), per ADC peripheral and the ADC
conversion result must be read either by the
CPU or DMA controller before the next ADC
conversion is complete to avoid overwriting the
previous value.
4. The DONE bit (AD1CON1<0>) is only cleared at
the start of each conversion and is set at the
completion of the conversion, but remains set
indefinitely even through the next sample phase
until the next conversion begins. If application
code is monitoring the DONE bit in any kind of
software loop, the user must consider this
behavior because the CPU code execution is
faster than the ADC. As a result, in manual sam-
ple mode, particularly where the users code is
setting the SAMP bit (AD1CON1<1>), the
DONE bit should also be cleared by the user
application just before setting the SAMP bit.
5. On devices with two ADC modules, the
ADCxPCFG registers for both ADC modules
must be set to a logic ‘1’ to configure a target
I/O pin as a digital I/O pin. Failure to do so
means that any alternate digital input function
will always see only a logic ‘0’ as the digital
input buffer is held in Disable mode.
21.5 ADC Resources
Many useful resources related to ADC are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
21.5.1 KEY RESOURCES
•Section 16. “Analog-to-Digital Converter
(ADC)” (DS70183)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 268 © 2007-2012 Microchip Technology Inc.
21.6 ADC Control Registers
REGISTER 21-1: AD1CON1: ADC1 CONTROL REGISTER 1
R/W-0 U-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
ADON —ADSIDLADDMABM— AD12B FORM<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0
HC,HS
R/C-0
HC, HS
SSRC<2:0> — SIMSAM ASAM SAMP DONE
bit 7 bit 0
Legend: HC = Cleared by hardware HS = Set by hardware C = Clear only bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ADON: ADC Operating Mode bit
1 = ADC module is operating
0 = ADC is off
bit 14 Unimplemented: Read as ‘0’
bit 13 ADSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12 ADDMABM: DMA Buffer Build Mode bit
1 = DMA buffers are written in the order of conversion. The module provides an address to the DMA
channel that is the same as the address used for the non-DMA stand-alone buffer
0 = DMA buffers are written in Scatter/Gather mode. The module provides a scatter/gather address
to the DMA channel, based on the index of the analog input and the size of the DMA buffer
bit 11 Unimplemented: Read as ‘0’
bit 10 AD12B: 10-bit or 12-bit Operation Mode bit
1 = 12-bit, 1-channel ADC operation
0 = 10-bit, 4-channel ADC operation
bit 9-8 FORM<1:0>: Data Output Format bits
For 10-bit operation:
11 = Signed fractional (DOUT = sddd dddd dd00 0000, where s =.NOT.d<9>)
10 = Fractional (DOUT = dddd dddd dd00 0000)
01 = Signed integer (DOUT = ssss sssd dddd dddd, where s = .NOT.d<9>)
00 = Integer (DOUT = 0000 00dd dddd dddd)
For 12-bit operation:
11 = Signed fractional (DOUT = sddd dddd dddd 0000, where s = .NOT.d<11>)
10 = Fractional (DOUT = dddd dddd dddd 0000)
01 = Signed Integer (DOUT = ssss sddd dddd dddd, where s = .NOT.d<11>)
00 = Integer (DOUT = 0000 dddd dddd dddd)
bit 7-5 SSRC<2:0>: Sample Clock Source Select bits
111 = Internal counter ends sampling and starts conversion (auto-convert)
110 = Reserved
101 = Reserved
100 = GP timer (Timer5 for ADC1) compare ends sampling and starts conversion
011 = Reserved
010 = GP timer (Timer3 for ADC1) compare ends sampling and starts conversion
001 = Active transition on INT0 pin ends sampling and starts conversion
000 = Clearing sample bit ends sampling and starts conversion
bit 4 Unimplemented: Read as ‘0’
© 2007-2012 Microchip Technology Inc. DS70292G-page 269
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 3 SIMSAM: Simultaneous Sample Select bit (only applicable when CHPS<1:0> = 01 or 1x)
When AD12B = 1, SIMSAM is: U-0, Unimplemented, Read as ‘0’
1 = Samples CH0, CH1, CH2, CH3 simultaneously (when CHPS<1:0> = 1x); or
Samples CH0 and CH1 simultaneously (when CHPS<1:0> = 01)
0 = Samples multiple channels individually in sequence
bit 2 ASAM: ADC Sample Auto-Start bit
1 = Sampling begins immediately after last conversion. SAMP bit is auto-set
0 = Sampling begins when SAMP bit is set
bit 1 SAMP: ADC Sample Enable bit
1 = ADC sample/hold amplifiers are sampling
0 = ADC sample/hold amplifiers are holding
If ASAM = 0, software can write ‘1’ to begin sampling. Automatically set by hardware if ASAM = 1.
If SSRC = 000, software can write ‘0’ to end sampling and start conversion. If SSRC ≠ 000,
automatically cleared by hardware to end sampling and start conversion.
bit 0 DONE: ADC Conversion Status bit
1 = ADC conversion cycle is completed.
0 = ADC conversion not started or in progress
Automatically set by hardware when ADC conversion is complete. Software can write ‘0’ to clear
DONE status (software not allowed to write ‘1’). Clearing this bit does NOT affect any operation in
progress. Automatically cleared by hardware at start of a new conversion.
REGISTER 21-1: AD1CON1: ADC1 CONTROL REGISTER 1 (CONTINUED)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 270 © 2007-2012 Microchip Technology Inc.
REGISTER 21-2: AD1CON2: ADC1 CONTROL REGISTER 2
R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0
VCFG<2:0> —— CSCNA CHPS<1:0>
bit 15 bit 8
R-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BUFS — SMPI<3:0> BUFM ALTS
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 VCFG<2:0>: Converter Voltage Reference Configuration bits
bit 12-11 Unimplemented: Read as ‘0’
bit 10 CSCNA: Scan Input Selections for CH0+ during Sample A bit
1 = Scan inputs
0 = Do not scan inputs
bit 9-8 CHPS<1:0>: Selects Channels Utilized bits
When AD12B = 1, CHPS<1:0> is: U-0, Unimplemented, Read as ‘0’
1x = Converts CH0, CH1, CH2 and CH3
01 = Converts CH0 and CH1
00 = Converts CH0
bit 7 BUFS: Buffer Fill Status bit (only valid when BUFM = 1)
1 = ADC is currently filling buffer 0x8-0xF, user should access data in 0x0-0x7
0 = ADC is currently filling buffer 0x0-0x7, user should access data in 0x8-0xF
bit 6 Unimplemented: Read as ‘0’
bit 5-2 SMPI<3:0>: Selects Increment Rate for DMA Addresses bits or number of sample/conversion
operations per interrupt
1111 = Increments the DMA address or generates interrupt after completion of every 16th sample/
conversion operation
1110 = Increments the DMA address or generates interrupt after completion of every 15th sample/
conversion operation
•
•
•
0001 = Increments the DMA address after completion of every 2nd sample/conversion operation
0000 = Increments the DMA address after completion of every sample/conversion operation
bit 1 BUFM: Buffer Fill Mode Select bit
1 = Starts buffer filling at address 0x0 on first interrupt and 0x8 on next interrupt
0 = Always starts filling buffer at address 0x0
bit 0 ALTS: Alternate Input Sample Mode Select bit
1 = Uses channel input selects for Sample A on first sample and Sample B on next sample
0 = Always uses channel input selects for Sample A
ADREF+ ADREF-
000 AVDD AVSS
001 External VREF+AVSS
010 AVDD External VREF-
011 External VREF+ External VREF-
1xx AVDD Avss
© 2007-2012 Microchip Technology Inc. DS70292G-page 271
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 21-3: AD1CON3: ADC1 CONTROL REGISTER 3
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADRC —— SAMC<4:0>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADCS<7:0>(2)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ADRC: ADC Conversion Clock Source bit
1 = ADC internal RC clock
0 = Clock derived from system clock
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 SAMC<4:0>: Auto Sample Time bits(1)
11111 = 31 TAD
•
•
•
00001 = 1 TAD
00000 = 0 TAD
bit 7-0 ADCS<7:0>: ADC Conversion Clock Select bits(2)
11111111 = Reserved
•
•
•
•
01000000 = Reserved
00111111 = TCY · (ADCS<7:0> + 1) = 64 · TCY = TAD
•
•
•
00000010 = TCY · (ADCS<7:0> + 1) = 3 · TCY = TAD
00000001 = TCY · (ADCS<7:0> + 1) = 2 · TCY = TAD
00000000 = TCY · (ADCS<7:0> + 1) = 1 · TCY = TAD
Note 1: This bit only used if AD1CON1<7:5> (SSRC<2:0>) = 111.
2: This bit is not used if AD1CON3<15> (ADRC) = 1.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 272 © 2007-2012 Microchip Technology Inc.
REGISTER 21-4: AD1CON4: ADC1 CONTROL REGISTER 4
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — DMABL<2:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-3 Unimplemented: Read as ‘0’
bit 2-0 DMABL<2:0>: Selects Number of DMA Buffer Locations per Analog Input bits
111 = Allocates 128 words of buffer to each analog input
110 = Allocates 64 words of buffer to each analog input
101 = Allocates 32 words of buffer to each analog input
100 = Allocates 16 words of buffer to each analog input
011 = Allocates 8 words of buffer to each analog input
010 = Allocates 4 words of buffer to each analog input
001 = Allocates 2 words of buffer to each analog input
000 = Allocates 1 word of buffer to each analog input
© 2007-2012 Microchip Technology Inc. DS70292G-page 273
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 21-5: AD1CHS123: ADC1 INPUT CHANNEL 1, 2, 3 SELECT REGISTER
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — CH123NB<1:0> CH123SB
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — CH123NA<1:0> CH123SA
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-9 CH123NB<1:0>: Channel 1, 2, 3 Negative Input Select for Sample B bits
When AD12B = 1, CHxNB is: U-0, Unimplemented, Read as ‘0’
11 = CH1 negative input is AN9, CH2 negative input is AN10, CH3 negative input is AN11
10 = CH1 negative input is AN6, CH2 negative input is AN7, CH3 negative input is AN8(1)
0x = CH1, CH2, CH3 negative input is VREF-
bit 8 CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B bit
When AD12B = 1, CHxSA is: U-0, Unimplemented, Read as ‘0’
1 = CH1 positive input is AN3, CH2 positive input is AN4, CH3 positive input is AN5
0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2
bit 7-3 Unimplemented: Read as ‘0’
bit 2-1 CH123NA<1:0>: Channel 1, 2, 3 Negative Input Select for Sample A bits
When AD12B = 1, CHxNA is: U-0, Unimplemented, Read as ‘0’
11 = CH1 negative input is AN9, CH2 negative input is AN10, CH3 negative input is AN11
10 = CH1 negative input is AN6, CH2 negative input is AN7, CH3 negative input is AN8(1)
0x = CH1, CH2, CH3 negative input is VREF-
bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit
When AD12B = 1, CHxSA is: U-0, Unimplemented, Read as ‘0’
1 = CH1 positive input is AN3, CH2 positive input is AN4, CH3 positive input is AN5
0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2
Note 1: This bit setting is Reserved in dsPIC33FJ128GPX02, dsPIC33FJ64GPX02 and dsPIC33FJGPX02
(28-pin) devices.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 274 © 2007-2012 Microchip Technology Inc.
REGISTER 21-6: AD1CHS0: ADC1 INPUT CHANNEL 0 SELECT REGISTER
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NB —— CH0SB<4:0>
bit 15 bit 8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CH0NA —— CH0SA<4:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CH0NB: Channel 0 Negative Input Select for Sample B bit
Same definition as bit 7.
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 CH0SB<4:0>: Channel 0 Positive Input Select for Sample B bits
01100 = Channel 0 positive input is AN12
01011 = Channel 0 positive input is AN11
•
•
•
01000 = Channel 0 positive input is AN8(1)
00111 = Channel 0 positive input is AN7(1)
00110 = Channel 0 positive input is AN6(1)
•
•
•
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
bit 7 CH0NA: Channel 0 Negative Input Select for Sample A bit
1 = Channel 0 negative input is AN1
0 = Channel 0 negative input is VREF-
bit 6-5 Unimplemented: Read as ‘0’
bit 4-0 CH0SA<4:0>: Channel 0 Positive Input Select for Sample A bits
01100 = Channel 0 positive input is AN12
01011 = Channel 0 positive input is AN11
•
•
•
01000 = Channel 0 positive input is AN8(1)
00111 = Channel 0 positive input is AN7(1)
00110 = Channel 0 positive input is AN6(1)
•
•
•
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
Note 1: These bit settings are reserved on dsPIC33FJ128GPX02, dsPIC33FJ64GPX02 and dsPIC33FJ32GPX02
(28-pin) devices.
© 2007-2012 Microchip Technology Inc. DS70292G-page 275
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 21-7: AD1CSSL: ADC1 INPUT SCAN SELECT REGISTER LOW(1,2)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — CSS12 CSS11 CSS10 CSS9 CSS8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-12 Unimplemented: Read as ‘0’
bit 11-0 CSS<11:0>: ADC Input Scan Selection bits
1 = Select ANx for input scan
0 = Skip ANx for input scan
Note 1: On devices without 13 analog inputs, all AD1CSSL bits can be selected by the user application. However,
inputs selected for scan without a corresponding input on device converts VREFL.
2: CSSx = ANx, where x = 0 through 12.
REGISTER 21-8: AD1PCFGL: ADC1 PORT CONFIGURATION REGISTER LOW(1,2,3)
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — PCFG12 PCFG11 PCFG10 PCFG9 PCFG8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12-0 PCFG<12:0>: ADC Port Configuration Control bits
1 = Port pin in Digital mode, port read input enabled, ADC input multiplexer connected to AVSS
0 = Port pin in Analog mode, port read input disabled, ADC samples pin voltage
Note 1: On devices without 13 analog inputs, all PCFG bits are R/W by user software. However, the PCFG bits are
ignored on ports without a corresponding input on device.
2: PCFGx = ANx, where x = 0 through 12.
3: PCFGx bits have no effect if ADC module is disabled by setting ADxMD bit in the PMDx Register. In this
case all port pins multiplexed with ANx will be in Digital mode.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 276 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 277
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
22.0 AUDIO DIGITAL-TO-ANALOG
CONVERTER (DAC)
The Audio Digital-to-Analog Converter (DAC) module
is a 16-bit Delta-Sigma signal converter designed for
audio applications. It has two output channels, left and
right to support stereo applications. Each DAC output
channel provides three voltage outputs, positive DAC
output, negative DAC output, and the midpoint voltage
output for the dsPIC33FJ64GP804 and
dsPIC33FJ128GP804 devices. The
dsPIC33FJ64GP802 and dsPIC33FJ128GP802
devices provide positive DAC output and negative DAC
output voltages.
22.1 Key Features
• 16-bit resolution (14-bit accuracy)
• Second-Order Digital Delta-Sigma Modulator
• 256 X Over-Sampling Ratio
• 128-Tap FIR Current-Steering Analog Recon-
struction Filter
• 100 ksps Maximum Sampling Rate
• User controllable Sample Clock
• Input Frequency 45 kHz max
• Differential Analog Outputs
• Signal-To-Noise: 90 dB
• 4-deep input Buffer
• 16-bit Processor I/O, and DMA interfaces
22.2 DAC Module Operation
The functional block diagram of the Audio DAC module
is shown in Figure 22-1. The Audio DAC module
provides a 4-deep data input FIFO buffer for each
output channel. If the DMA module and/or the
processor cannot provide output data in a timely
manner, and the FIFO becomes empty, the DAC
accepts data from the DAC Default Data register
(DACDFLT). This safety feature is useful for industrial
control applications where the DAC output controls an
important processor or machinery. The DACDFLT
register should be initialized with a “safe” output value.
Often the safe output value is either the midpoint value
(0x8000) or a zero value (0x0000).
The digital interpolator up-samples the input signals,
where the over-sampling ratio is 256x which creates
data points between the user supplied data points.
The interpolator also includes processing by digital
filters to provide “noise shaping” to move the
converter noise above 20 kHz (upper limit of the pass
band). The output of the interpolator drives the Sigma-
Delta modulator. The serial data bit stream from the
Sigma-Delta modulator is processed by the
reconstruction filter. The differential outputs of the
reconstruction filter are amplified by Op Amps to
provide the required peak-to-peak voltage swing.
22.3 DAC Output Format
The DAC output data stream can be in a two’s comple-
ment signed number format or as an unsigned number
format.
The Audio DAC module features the ability to accept
the 16-bit input data in a two’s complement signed
number format or as an unsigned number format.
The data formatting is controlled by the Data Format
Control bit (FORM<8>) in the DAC1CON register.
The supported formats are:
•1 = Signed (two’s complement)
•0 = Unsigned
If the FORM bit is configured for “Unsigned data” then
the user input data yields the following behavior:
• 0xFFFF = most positive output voltage
• 0x8000 = mid point output voltage
• 0x7FFF = a value just below the midpoint
• 0x0000 = minimum output voltage
If the FORM bit is configured for “signed data” then the
user input data yields the following behavior:
• 0x7FFF = most positive output voltage
• 0x0000 = mid point output voltage
• 0xFFFF = value just below the midpoint
• 0x8000 = minimum output voltage
The Audio DAC provides an analog output proportional
to the digital input value. The maximum 100,000
samples per second (100 ksps) update rate provides
good quality audio reproduction.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 33. “Audio Digital-to-
Analog Converter (DAC)” (DS70211) of
the “dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: The DAC module is designed specifically
for audio applications and is not
recommended for control type
applications.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 278 © 2007-2012 Microchip Technology Inc.
22.4 DAC Clock
The DAC clock signal clocks the internal logic of the
Audio DAC module. The data sample rate of the Audio
DAC is an integer division of the rate of the DAC clock.
The DAC clock is generated via a clock divider circuit
that accepts an auxiliary clock from the auxiliary
oscillator.
The divisor ratio is programmed by clock divider bits
(DACFDIV<6:0>) in the DAC Control register
(DAC1CON). The resulting DAC clock must not exceed
25.6 MHz. If lower sample rates are to be used, then
the DAC filter clock frequency may be reduced to
reduce power consumption. The DAC clock frequency
is 256 times the sampling frequency.
FIGURE 22-1: BLOCK DIAGRAM OF AUDIO DIGITAL-TO-ANALOG (DAC) CONVERTER
FIGURE 22-2: AUDIO DAC OUTPUT FOR RAMP INPUT (UNSIGNED)
DAC1RDAT
DAC1LDAT
D/A
D/A
CONTROL CLK DIV DACDFLT
Amp
16-bit Data Bus
Amp
ACLK
Note 1: If DAC1RDAT and DAC1LDAT are empty, data will be taken from the DACDFLT register.
Note 1
Note 1
DAC1LM
DAC1LP
DAC1LN
DAC1RM
DAC1RP
DAC1RN
Right Channel
Left Channel
DACFDIV<6:0>
0x0000
0xFFFF
DAC input
Count (DAC1RDAT)
VDACM
VDACM
Positive DAC
Output (DAC1RP)
Negative DAC
Output (DAC1RN)
VDACH
VDACL
VDACL
VDACH
Note: VOD+ = VDACH – VDACL, VOD- = VDACL – VDACH; refer to Audio DAC Module Specifications, Table 30-46, for typical values.
© 2007-2012 Microchip Technology Inc. DS70292G-page 279
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
22.5 DAC Resources
Many useful resources related to DAC are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
22.5.1 KEY RESOURCES
•Section 33. “Audio Digital-to-Analog Converter
(DAC)” (DS70211)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 280 © 2007-2012 Microchip Technology Inc.
22.6 DAC Control Registers
REGISTER 22-1: DAC1CON: DAC CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 U-0 U-0 U-0 R/W-0
DACEN — DACSIDL AMPON — — —FORM
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1
—DACFDIV<6:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 DACEN: DAC1 Enable bit
1 = Enables module
0 = Disables module
bit 14 Unimplemented: Read as ‘0’
bit 13 DACSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12 AMPON: Enable Analog Output Amplifier in Sleep Mode/Stop in Idle Mode bit
1 = Analog Output Amplifier is enabled during Sleep Mode/Stop in Idle mode
0 = Analog Output Amplifier is disabled during Sleep Mode/Stop in Idle mode
bit 11-9 Unimplemented: Read as ‘0’
bit 8 FORM: Data Format Select bit
1 = Signed integer
0 = Unsigned integer
bit 7 Unimplemented: Read as ‘0’
bit 6-0 DACFDIV<6:0>: DAC Clock Divider bit
1111111 = Divide input clock by 128
•
•
•
0000101 = Divide input clock by 6 (default)
•
•
•
0000010 = Divide input clock by 3
0000001 = Divide input clock by 2
0000000 = Divide input clock by 1 (no divide)
© 2007-2012 Microchip Technology Inc. DS70292G-page 281
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 22-2: DAC1STAT: DAC STATUS REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R-0 R-0
LOEN —LMVOEN—— LITYPE LFULL LEMPTY
bit 15 bit 8
R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R-0 R-0
ROEN —RMVOEN—— RITYPE RFULL REMPTY
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 LOEN: Left Channel DAC Output Enable bit
1 = Positive and negative DAC outputs are enabled
0 = DAC outputs are disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 LMVOEN: Left Channel Midpoint DAC Output Voltage Enable bit
1 = Midpoint DAC output is enabled
0 = Midpoint output is disabled
bit 12-11 Unimplemented: Read as ‘0’
bit 10 LITYPE: Left Channel Type of Interrupt bit
1 = Interrupt if FIFO is Empty
0 = Interrupt if FIFO is not Full
bit 9 LFULL: Status, Left Channel Data Input FIFO is Full bit
1 = FIFO is Full
0 = FIFO is not full
bit 8 LEMPTY: Status, Left Channel Data Input FIFO is Empty bit
1 = FIFO is Empty
0 = FIFO is not Empty
bit 7 ROEN: Right Channel DAC Output Enable bit
1 = Positive and negative DAC outputs are enabled
0 = DAC outputs are disabled
bit 6 Unimplemented: Read as ‘0’
bit 5 RMVOEN: Right Channel Midpoint DAC Output Voltage Enable bit
1 = Midpoint DAC output is enabled
0 = Midpoint output is disabled
bit 4-3 Unimplemented: Read as ‘0’
bit 2 RITYPE: Right Channel Type of Interrupt bit
1 = Interrupt if FIFO is Empty
0 = Interrupt if FIFO is not Full
bit 1 RFULL: Status, Right Channel Data Input FIFO is Full bit
1 = FIFO is Full
0 = FIFO is not full
bit 0 REMPTY: Status, Right Channel Data Input FIFO is Empty bit
1 = FIFO is Empty
0 = FIFO is not Empty
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 282 © 2007-2012 Microchip Technology Inc.
REGISTER 22-3: DAC1DFLT: DAC DEFAULT DATA REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACDFLT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACDFLT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DACDFLT<15:0>: DAC Default Value bits
REGISTER 22-4: DAC1LDAT: DAC LEFT DATA REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACLDAT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACLDAT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DACLDAT<15:0>: Left Channel Data Port bits
REGISTER 22-5: DAC1RDAT: DAC RIGHT DATA REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACRDAT<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
DACRDAT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 DACRDAT<15:0>: Right Channel Data Port bits
© 2007-2012 Microchip Technology Inc. DS70292G-page 283
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
23.0 COMPARATOR MODULE The Comparator module provides a set of dual input
comparators. The inputs to the comparator can be con-
figured to use any one of the four pin inputs (C1IN+,
C1IN-, C2IN+ and C2IN-) as well as the Comparator
Voltage Reference Input (CVREF).
FIGURE 23-1: COMPARATOR I/O OPERATING MODES
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 34.
“Comparator” (DS70212) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Note: This peripheral contains output func-
tions that may need to be configured by
the peripheral pin select feature. For
more information, see Section 11.6
“Peripheral Pin Select”.
C2
C2IN- VIN-
VIN+
C2IN+
CVREF
C2IN+
C2OUT(1)
C2OUT (CMCON<7>)
C1
C1IN- VIN-
VIN+
C1IN+
CVREF
C1IN+
C1OUT(1)
C1OUT (CMCON<6>)
C1NEG
C1POS
C2NEG
C2POS
C1INV
C2INV
C1OUTEN
C2OUTEN
C1EN
C2EN
Note 1: This peripheral’s outputs must be assigned to an available RPn pin before use. Refer to
Section 11.6 “Peripheral Pin Select” for more information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 284 © 2007-2012 Microchip Technology Inc.
23.1 Comparator Resources
Many useful resources related to Comparators are
provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
23.1.1 KEY RESOURCES
•Section 34. “Comparator” (DS70212)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 285
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
23.2 Comparator Control Register
REGISTER 23-1: CMCON: COMPARATOR CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CMIDL — C2EVT C1EVT C2EN C1EN C2OUTEN(1) C1OUTEN(2)
bit 15 bit 8
R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
C2OUT C1OUT C2INV C1INV C2NEG C2POS C1NEG C1POS
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CMIDL: Stop in Idle Mode bit
1 = When device enters Idle mode, module does not generate interrupts. Module is still enabled.
0 = Continue normal module operation in Idle mode
bit 14 Unimplemented: Read as ‘0’
bit 13 C2EVT: Comparator 2 Event bit
1 = Comparator output changed states
0 = Comparator output did not change states
bit 12 C1EVT: Comparator 1 Event bit
1 = Comparator output changed states
0 = Comparator output did not change states
bit 11 C2EN: Comparator 2 Enable bit
1 = Comparator is enabled
0 = Comparator is disabled
bit 10 C1EN: Comparator 1 Enable bit
1 = Comparator is enabled
0 = Comparator is disabled
bit 9 C2OUTEN: Comparator 2 Output Enable bit(1)
1 = Comparator output is driven on the output pad
0 = Comparator output is not driven on the output pad
bit 8 C1OUTEN: Comparator 1 Output Enable bit(2)
1 = Comparator output is driven on the output pad
0 = Comparator output is not driven on the output pad
bit 7 C2OUT: Comparator 2 Output bit
When C2INV = 0:
1 =C2 VIN+ > C2 VIN-
0 =C2 V
IN+ < C2 VIN-
When C2INV = 1:
0 =C2 VIN+ > C2 VIN-
1 =C2 VIN+ < C2 VIN-
Note 1: If C2OUTEN = 1, the C2OUT peripheral output must be configured to an available RPx pin. See
Section 11.6 “Peripheral Pin Select” for more information.
2: If C1OUTEN = 1, the C1OUT peripheral output must be configured to an available RPx pin. See
Section 11.6 “Peripheral Pin Select” for more information.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 286 © 2007-2012 Microchip Technology Inc.
bit 6 C1OUT: Comparator 1 Output bit
When C1INV = 0:
1 =C1 VIN+ > C1 VIN-
0 =C1 VIN+ < C1 VIN-
When C1INV = 1:
0 =C1 VIN+ > C1 VIN-
1 =C1 V
IN+ < C1 VIN-
bit 5 C2INV: Comparator 2 Output Inversion bit
1 = C2 output inverted
0 = C2 output not inverted
bit 4 C1INV: Comparator 1 Output Inversion bit
1 = C1 output inverted
0 = C1 output not inverted
bit 3 C2NEG: Comparator 2 Negative Input Configure bit
1 = Input is connected to VIN+
0 = Input is connected to VIN-
See Figure 23-1 for the comparator modes.
bit 2 C2POS: Comparator 2 Positive Input Configure bit
1 = Input is connected to VIN+
0 = Input is connected to CVREF
See Figure 23-1 for the comparator modes.
bit 1 C1NEG: Comparator 1 Negative Input Configure bit
1 = Input is connected to VIN+
0 = Input is connected to VIN-
See Figure 23-1 for the comparator modes.
bit 0 C1POS: Comparator 1 Positive Input Configure bit
1 = Input is connected to VIN+
0 = Input is connected to CVREF
See Figure 23-1 for the comparator modes.
REGISTER 23-1: CMCON: COMPARATOR CONTROL REGISTER (CONTINUED)
Note 1: If C2OUTEN = 1, the C2OUT peripheral output must be configured to an available RPx pin. See
Section 11.6 “Peripheral Pin Select” for more information.
2: If C1OUTEN = 1, the C1OUT peripheral output must be configured to an available RPx pin. See
Section 11.6 “Peripheral Pin Select” for more information.
© 2007-2012 Microchip Technology Inc. DS70292G-page 287
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
23.3 Comparator Voltage Reference
23.3.1 CONFIGURING THE COMPARATOR
VOLTAGE REFERENCE
The voltage reference module is controlled through the
CVRCON register (Register 23-2). The comparator
voltage reference provides two ranges of output
voltage, each with 16 distinct levels. The range to be
used is selected by the CVRR bit (CVRCON<5>). The
primary difference between the ranges is the size of the
steps selected by the CVREF Selection bits
(CVR3:CVR0), with one range offering finer resolution.
The comparator reference supply voltage can come
from either VDD and VSS, or the external VREF+ and
VREF-. The voltage source is selected by the CVRSS
bit (CVRCON<4>).
The settling time of the comparator voltage reference
must be considered when changing the CVREF
output.
FIGURE 23-2: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
16-to-1 MUX
8R
R
CVREN
CVRSS = 0
AVDD
VREF+CVRSS = 1
8R
CVRSS = 0
VREF-CVRSS = 1
R
R
R
R
R
R
16 Steps
CVRR
CVREF
CVR3
CVR2
CVR1
CVR0
CVRCON<3:0>
AVSS
CVRSRC
CVROE (CVRCON<6>)
CVREFIN
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 288 © 2007-2012 Microchip Technology Inc.
REGISTER 23-2: CVRCON: COMPARATOR VOLTAGE REFERENCE CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W
-0
R/W
-0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CVREN CVROE CVRR CVRSS CVR<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7 CVREN: Comparator Voltage Reference Enable bit
1 =CV
REF circuit powered on
0 =CV
REF circuit powered down
bit 6 CVROE: Comparator VREF Output Enable bit
1 =CV
REF voltage level is output on CVREF pin
0 =CVREF voltage level is disconnected from CVREF pin
bit 5 CVRR: Comparator VREF Range Selection bit
1 =CV
RSRC range should be 0 to 0.625 CVRSRC with CVRSRC/24 step size
0 =CVRSRC range should be 0.25 to 0.719 CVRSRC with CVRSRC/32 step size
bit 4 CVRSS: Comparator VREF Source Selection bit
1 = Comparator reference source CVRSRC = VREF+ – VREF-
0 = Comparator reference source CVRSRC = AVDD – AVSS
bit 3-0 CVR<3:0>: Comparator VREF Value Selection 0 ≤ CVR<3:0> ≤ 15 bits
When CVRR = 1:
CVREF = (CVR<3:0>/ 24) • (CVRSRC)
When CVRR = 0:
CVREF = 1/4 • (CVRSRC)+ (CVR<3:0>/32) • (CVRSRC)
© 2007-2012 Microchip Technology Inc. DS70292G-page 289
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
24.0 REAL-TIME CLOCK AND
CALENDAR (RTCC)
This chapter discusses the Real-Time Clock and
Calendar (RTCC) module, available on
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices, and its
operation. The following are some of the key
features of this module:
• Time: hours, minutes, and seconds
• 24-hour format (military time)
• Calendar: weekday, date, month and year
• Alarm configurable
• Year range: 2000 to 2099
• Leap year correction
• BCD format for compact firmware
• Optimized for low-power operation
• User calibration with auto-adjust
• Calibration range: ±2.64 seconds error per month
• Requirements: External 32.768 kHz clock crystal
• Alarm pulse or seconds clock output on RTCC pin
The RTCC module is intended for applications where
accurate time must be maintained for extended periods
of time with minimum to no intervention from the CPU.
The RTCC module is optimized for low-power usage to
provide extended battery lifetime while keeping track of
time.
The RTCC module is a 100-year clock and calendar
with automatic leap year detection. The range of the
clock is from 00:00:00 (midnight) on January 1, 2000 to
23:59:59 on December 31, 2099.
The hours are available in 24-hour (military time)
format. The clock provides a granularity of one second
with half-second visibility to the user.
FIGURE 24-1: RTCC BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 37. “Real-Time Clock
and Calendar (RTCC)” (DS70301) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
RTCC Prescalers
RTCC Timer
Comparator
Compare Registers
Repeat Counter
with Masks
RTCC Interrupt Logic
RCFGCAL
ALCFGRPT
Alarm
Event
32.768 kHz Input
from SOSC Oscillator
0.5s
RTCC Clock Domain
Alarm Pulse
RTCC Interrupt
CPU Clock Domain
RTCVAL
ALRMVAL
RTCC Pin
RTCOE
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 290 © 2007-2012 Microchip Technology Inc.
24.1 RTCC Module Registers
The RTCC module registers are organized into three
categories:
• RTCC Control Registers
• RTCC Value Registers
• Alarm Value Registers
24.1.1 REGISTER MAPPING
To limit the register interface, the RTCC Timer and
Alarm Time registers are accessed through corre-
sponding register pointers. The RTCC Value register
window (RTCVALH and RTCVALL) uses the RTCPTR
bits (RCFGCAL<9:8>) to select the desired timer
register pair (see Table 24-1).
By writing the RTCVALH byte, the RTCC Pointer value,
RTCPTR<1:0> bits, decrement by one until they reach
‘00’. Once they reach ‘00’, the MINUTES and
SECONDS value will be accessible through RTCVALH
and RTCVALL until the pointer value is manually
changed.
TABLE 24-1: RTCVAL REGISTER MAPPING
The Alarm Value register window (ALRMVALH and
ALRMVALL) uses the ALRMPTR bits
(ALCFGRPT<9:8>) to select the desired Alarm register
pair (see Table 24-2).
By writing the ALRMVALH byte, the Alarm Pointer
value, ALRMPTR<1:0> bits, decrement by one until
they reach ‘00’. Once they reach ‘00’, the ALRMMIN
and ALRMSEC value will be accessible through
ALRMVALH and ALRMVALL until the pointer value is
manually changed.
TABLE 24-2: ALRMVAL REGISTER
MAPPING
Considering that the 16-bit core does not distinguish
between 8-bit and 16-bit read operations, the user must
be aware that when reading either the ALRMVALH or
ALRMVALL bytes will decrement the ALRMPTR<1:0>
value. The same applies to the RTCVALH or RTCVALL
bytes with the RTCPTR<1:0> being decremented.
24.1.2 WRITE LOCK
In order to perform a write to any of the RTCC Timer
registers, the RTCWREN bit (RCFGCAL<13>) must be
set (refer to Example 24-1).
EXAMPLE 24-1: SETTING THE RTCWREN BIT
RTCPTR
<1:0>
RTCC Value Register Window
RTCVAL<15:8> RTCVAL<7:0>
00 MINUTES SECONDS
01 WEEKDAY HOURS
10 MONTH DAY
11 — YEAR
ALRMPTR
<1:0>
Alarm Value Register Window
ALRMVAL<15:8> ALRMVAL<7:0>
00 ALRMMIN ALRMSEC
01 ALRMWD ALRMHR
10 ALRMMNTH ALRMDAY
11 ——
Note: This only applies to read operations and
not write operations.
Note: To avoid accidental writes to the timer, it is
recommended that the RTCWREN bit
(RCFGCAL<13>) is kept clear at any
other time. For the RTCWREN bit to be
set, there is only 1 instruction cycle time
window allowed between the 55h/AA
sequence and the setting of RTCWREN;
therefore, it is recommended that code
follow the procedure in Example 24-1.
MOV #NVMKEY, W1 ;move the address of NVMKEY into W1
MOV #0x55, W2
MOV #0xAA, W3
MOV W2, [W1] ;start 55/AA sequence
MOV W3, [W1]
BSET RCFGCAL, #13 ;set the RTCWREN bit
© 2007-2012 Microchip Technology Inc. DS70292G-page 291
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
24.2 RTCC Resources
Many useful resources related to RTCC are provided
on the main product page of the Microchip web site for
the devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
24.2.1 KEY RESOURCES
•Section 37. “Real-Time Clock and Calendar
(RTCC)” (DS70301)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 292 © 2007-2012 Microchip Technology Inc.
24.3 RTCC Registers
REGISTER 24-1: RCFGCAL: RTCC CALIBRATION AND CONFIGURATION REGISTER
(1)
R/W-0 U-0 R/W-0 R-0 R-0 R/W-0 R/W-0 R/W-0
RTCEN(2) — RTCWREN RTCSYNC HALFSEC(3) RTCOE RTCPTR<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CAL<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 RTCEN: RTCC Enable bit(2)
1 = RTCC module is enabled
0 = RTCC module is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 RTCWREN: RTCC Value Registers Write Enable bit
1 = RTCVALH and RTCVALL registers can be written to by the user
0 = RTCVALH and RTCVALL registers are locked out from being written to by the user
bit 12 RTCSYNC: RTCC Value Registers Read Synchronization bit
1 = RTCVALH, RTCVALL and ALCFGRPT registers can change while reading due to a rollover ripple
resulting in an invalid data read. If the register is read twice and results in the same data, the data
can be assumed to be valid.
0 = RTCVALH, RTCVALL or ALCFGRPT registers can be read without concern over a rollover ripple
bit 11 HALFSEC: Half-Second Status bit(3)
1 = Second half period of a second
0 = First half period of a second
bit 10 RTCOE: RTCC Output Enable bit
1 = RTCC output enabled
0 = RTCC output disabled
bit 9-8 RTCPTR<1:0>: RTCC Value Register Window Pointer bits
Points to the corresponding RTCC Value registers when reading RTCVALH and RTCVALL registers;
the RTCPTR<1:0> value decrements on every read or write of RTCVALH until it reaches ‘00’.
RTCVAL<15:8>:
00 = MINUTES
01 = WEEKDAY
10 = MONTH
11 = Reserved
RTCVAL<7:0>:
00 = SECONDS
01 = HOURS
10 = DAY
11 = YEAR
Note 1: The RCFGCAL register is only affected by a POR.
2: A write to the RTCEN bit is only allowed when RTCWREN = 1.
3: This bit is read-only. It is cleared to ‘0’ on a write to the lower half of the MINSEC register.
© 2007-2012 Microchip Technology Inc. DS70292G-page 293
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
bit 7-0 CAL<7:0>: RTC Drift Calibration bits
11111111 = Minimum negative adjustment; subtracts 4 RTC clock pulses every one minute
•
•
•
10000000 = Maximum negative adjustment; subtracts 512 RTC clock pulses every one minute
01111111 = Maximum positive adjustment; adds 508 RTC clock pulses every one minute
•
•
•
00000001 = Minimum positive adjustment; adds 4 RTC clock pulses every one minute
00000000 = No adjustment
REGISTER 24-1: RCFGCAL: RTCC CALIBRATION AND CONFIGURATION REGISTER
(1)
(CONTINUED)
Note 1: The RCFGCAL register is only affected by a POR.
2: A write to the RTCEN bit is only allowed when RTCWREN = 1.
3: This bit is read-only. It is cleared to ‘0’ on a write to the lower half of the MINSEC register.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 294 © 2007-2012 Microchip Technology Inc.
REGISTER 24-2: PADCFG1: PAD CONFIGURATION CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — RTSECSEL(1) PMPTTL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-2 Unimplemented: Read as ‘0’
bit 1 RTSECSEL: RTCC Seconds Clock Output Select bit(1)
1 = RTCC seconds clock is selected for the RTCC pin
0 = RTCC alarm pulse is selected for the RTCC pin
bit 0 PMPTTL: PMP Module TTL Input Buffer Select bit
1 = PMP module uses TTL input buffers
0 = PMP module uses Schmitt Trigger input buffers
Note 1: To enable the actual RTCC output, the RTCOE bit (RCFGCAL<10>) needs to be set.
© 2007-2012 Microchip Technology Inc. DS70292G-page 295
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 24-3: ALCFGRPT: ALARM CONFIGURATION REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ALRMEN CHIME AMASK<3:0> ALRMPTR<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ARPT<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ALRMEN: Alarm Enable bit
1 = Alarm is enabled (cleared automatically after an alarm event whenever ARPT<7:0> = 0x00 and
CHIME = 0)
0 = Alarm is disabled
bit 14 CHIME: Chime Enable bit
1 = Chime is enabled; ARPT<7:0> bits are allowed to roll over from 0x00 to 0xFF
0 = Chime is disabled; ARPT<7:0> bits stop once they reach 0x00
bit 13-10 AMASK<3:0>: Alarm Mask Configuration bits
11xx = Reserved – do not use
101x = Reserved – do not use
1001 = Once a year (except when configured for February 29th, once every 4 years)
1000 = Once a month
0111 = Once a week
0110 = Once a day
0101 = Every hour
0100 = Every 10 minutes
0011 = Every minute
0010 = Every 10 seconds
0001 = Every second
0000 = Every half second
bit 9-8 ALRMPTR<1:0>: Alarm Value Register Window Pointer bits
Points to the corresponding Alarm Value registers when reading ALRMVALH and ALRMVALL registers;
the ALRMPTR<1:0> value decrements on every read or write of ALRMVALH until it reaches ‘00’.
ALRMVAL<15:8>:
11 = Unimplemented
10 = ALRMMNTH
01 = ALRMWD
00 = ALRMMIN
ALRMVAL<7:0>:
11 = Unimplemented
10 = ALRMDAY
01 = ALRMHR
00 = ALRMSEC
bit 7-0 ARPT<7:0>: Alarm Repeat Counter Value bits
11111111 = Alarm will repeat 255 more times
•
•
•
00000000 = Alarm will not repeat
The counter decrements on any alarm event. The counter is prevented from rolling over from 0x00 to
0xFF unless CHIME = 1.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 296 © 2007-2012 Microchip Technology Inc.
REGISTER 24-4: RTCVAL (WHEN RTCPTR<1:0> = 11): YEAR VALUE REGISTER(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
YRTEN<3:0> YRONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-8 Unimplemented: Read as ‘0’
bit 7-4 YRTEN<3:0>: Binary Coded Decimal Value of Year’s Tens Digit; contains a value from 0 to 9
bit 3-0 YRONE<3:0>: Binary Coded Decimal Value of Year’s Ones Digit; contains a value from 0 to 9
Note 1: A write to the YEAR register is only allowed when RTCWREN = 1.
REGISTER 24-5: RTCVAL (WHEN RTCPTR<1:0> = 10): MONTH AND DAY VALUE REGISTER(1)
U-0 U-0 U-0 R-x R-x R-x R-x R-x
— — —
MTHTEN0 MTHONE<3:0>
bit 15 bit 8
U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— —
DAYTEN<1:0> DAYONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12 MTHTEN0: Binary Coded Decimal Value of Month’s Tens Digit; contains a value of 0 or 1
bit 11-8 MTHONE<3:0>: Binary Coded Decimal Value of Month’s Ones Digit; contains a value from 0 to 9
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 DAYTEN<1:0>: Binary Coded Decimal Value of Day’s Tens Digit; contains a value from 0 to 3
bit 3-0 DAYONE<3:0>: Binary Coded Decimal Value of Day’s Ones Digit; contains a value from 0 to 9
Note 1: A write to this register is only allowed when RTCWREN = 1.
© 2007-2012 Microchip Technology Inc. DS70292G-page 297
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 24-6: RTCVAL (WHEN RTCPTR<1:0> = 01): WKDYHR: WEEKDAY AND HOURS VALUE
REGISTER(1)
U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x
— — — — — WDAY<2:0>
bit 15 bit 8
U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
—— HRTEN<1:0> HRONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 WDAY<2:0>: Binary Coded Decimal Value of Weekday Digit; contains a value from 0 to 6
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 HRTEN<1:0>: Binary Coded Decimal Value of Hour’s Tens Digit; contains a value from 0 to 2
bit 3-0 HRONE<3:0>: Binary Coded Decimal Value of Hour’s Ones Digit; contains a value from 0 to 9
Note 1: A write to this register is only allowed when RTCWREN = 1.
REGISTER 24-7: RTCVAL (WHEN RTCPTR<1:0> = 00): MINUTES AND SECONDS VALUE
REGISTER
U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— MINTEN<2:0> MINONE<3:0>
bit 15 bit 8
U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— SECTEN<2:0> SECONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 MINTEN<2:0>: Binary Coded Decimal Value of Minute’s Tens Digit; contains a value from 0 to 5
bit 11-8 MINONE<3:0>: Binary Coded Decimal Value of Minute’s Ones Digit; contains a value from 0 to 9
bit 7 Unimplemented: Read as ‘0’
bit 6-4 SECTEN<2:0>: Binary Coded Decimal Value of Second’s Tens Digit; contains a value from 0 to 5
bit 3-0 SECONE<3:0>: Binary Coded Decimal Value of Second’s Ones Digit; contains a value from 0 to 9
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 298 © 2007-2012 Microchip Technology Inc.
REGISTER 24-8: ALRMVAL (WHEN ALRMPTR<1:0> = 10): ALARM MONTH AND DAY VALUE
REGISTER(1)
U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x
— — —
MTHTEN0 MTHONE<3:0>
bit 15 bit 8
U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— —
DAYTEN<1:0> DAYONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-13 Unimplemented: Read as ‘0’
bit 12 MTHTEN0: Binary Coded Decimal Value of Month’s Tens Digit; contains a value of 0 or 1
bit 11-8 MTHONE<3:0>: Binary Coded Decimal Value of Month’s Ones Digit; contains a value from 0 to 9
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 DAYTEN<1:0>: Binary Coded Decimal Value of Day’s Tens Digit; contains a value from 0 to 3
bit 3-0 DAYONE<3:0>: Binary Coded Decimal Value of Day’s Ones Digit; contains a value from 0 to 9
Note 1: A write to this register is only allowed when RTCWREN = 1.
REGISTER 24-9: ALRMVAL (WHEN ALRMPTR<1:0> = 01): ALARM WEEKDAY AND HOURS
VALUE REGISTER(1)
U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x
— — — — — WDAY2 WDAY1 WDAY0
bit 15 bit 8
U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
—— HRTEN<1:0> HRONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-11 Unimplemented: Read as ‘0’
bit 10-8 WDAY<2:0>: Binary Coded Decimal Value of Weekday Digit; contains a value from 0 to 6
bit 7-6 Unimplemented: Read as ‘0’
bit 5-4 HRTEN<1:0>: Binary Coded Decimal Value of Hour’s Tens Digit; contains a value from 0 to 2
bit 3-0 HRONE<3:0>: Binary Coded Decimal Value of Hour’s Ones Digit; contains a value from 0 to 9
Note 1: A write to this register is only allowed when RTCWREN = 1.
© 2007-2012 Microchip Technology Inc. DS70292G-page 299
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 24-10: ALRMVAL (WHEN ALRMPTR<1:0> = 00): ALARM MINUTES AND SECONDS
VALUE REGISTER
U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— MINTEN<2:0> MINONE<3:0>
bit 15 bit 8
U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— SECTEN<2:0> SECONE<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14-12 MINTEN<2:0>: Binary Coded Decimal Value of Minute’s Tens Digit; contains a value from 0 to 5
bit 11-8 MINONE<3:0>: Binary Coded Decimal Value of Minute’s Ones Digit; contains a value from 0 to 9
bit 7 Unimplemented: Read as ‘0’
bit 6-4 SECTEN<2:0>: Binary Coded Decimal Value of Second’s Tens Digit; contains a value from 0 to 5
bit 3-0 SECONE<3:0>: Binary Coded Decimal Value of Second’s Ones Digit; contains a value from 0 to 9
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 300 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 301
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
25.0 PROGRAMMABLE CYCLIC
REDUNDANCY CHECK (CRC)
GENERATOR
The programmable CRC generator offers the following
features:
• User-programmable polynomial CRC equation
• Interrupt output
• Data FIFO
25.1 Overview
The module implements a software configurable CRC
generator. The terms of the polynomial and its length
can be programmed using the CRCXOR bits (X<15:1>)
and the CRCCON bits (PLEN<3:0>), respectively.
EQUATION 25-1: CRC EQUATION
To program this polynomial into the CRC generator,
the CRC register bits should be set as shown in
Table 25-1.
TABLE 25-1: EXAMPLE CRC SETUP
For the value of X<15:1>, the 12th bit and the 5th bit are
set to ‘1’, as required by the CRC equation. The 0th bit
required by the CRC equation is always XORed. For a
16-bit polynomial, the 16th bit is also always assumed
to be XORed; therefore, the X<15:1> bits do not have
the 0th bit or the 16th bit.
The topology of a standard CRC generator is shown in
Figure 25-2.
FIGURE 25-1: CRC SHIFTER DETAILS
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 36.
“Programmable Cyclic Redundancy
Check (CRC)” (DS70298) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization” in
this data sheet for device-specific register
and bit information.
Bit Name Bit Value
PLEN<3:0> 1111
X<15:1> 000100000010000
x16 x12 x51+++
IN
OUT
BIT 0
0
1
p_clk
X1
IN
OUT
BIT 1
0
1
p_clk
X2
IN
OUT
BIT 2
0
1
p_clk
X3
IN
OUT
BIT 15
0
1
p_clk
X15
XOR
DOUT
01 2 15
PLEN<3:0>
Hold Hold Hold Hold
CRC Read Bus
CRC Write Bus
CRC Shift Register
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 302 © 2007-2012 Microchip Technology Inc.
FIGURE 25-2: CRC GENERATOR RECONFIGURED FOR x16 + x12 + x5 + 1
25.2 User Interface
25.2.1 DATA INTERFACE
To start serial shifting, a ‘1’ must be written to the
CRCGO bit.
The module incorporates a FIFO that is 8 deep when
PLEN (PLEN<3:0>) > 7, and 16 deep, otherwise. The
data for which the CRC is to be calculated must first be
written into the FIFO. The smallest data element that
can be written into the FIFO is one byte. For example,
if PLEN = 5, then the size of the data is PLEN + 1 = 6.
The data must be written as follows:
data[5:0] = crc_input[5:0]
data[7:6] = ‘bxx
Once data is written into the CRCWDAT MSb (as
defined by PLEN), the value of VWORD
(VWORD<4:0>) increments by one. The serial shifter
starts shifting data into the CRC engine when
CRCGO = 1 and VWORD > 0. When the MSb is
shifted out, VWORD decrements by one. The serial
shifter continues shifting until the VWORD reaches 0.
Therefore, for a given value of PLEN, it will take
(PLEN + 1) * VWORD number of clock cycles to
complete the CRC calculations.
When VWORD reaches 8 (or 16), the CRCFUL bit will
be set. When VWORD reaches 0, the CRCMPT bit will
be set.
To continually feed data into the CRC engine, the rec-
ommended mode of operation is to initially “prime” the
FIFO with a sufficient number of words so no interrupt
is generated before the next word can be written. Once
that is done, start the CRC by setting the CRCGO bit to
‘1’. From that point onward, the VWORD<4:0> bits
should be polled. If they read less than 8 or 16, another
word can be written into the FIFO.
To empty words already written into a FIFO, the
CRCGO bit must be set to ‘1’ and the CRC shifter
allowed to run until the CRCMPT bit is set.
Also, to get the correct CRC reading, it will be
necessary to wait for the CRCMPT bit to go high before
reading the CRCWDAT register.
If a word is written when the CRCFUL bit is set, the
VWORD Pointer will roll over to 0. The hardware will
then behave as if the FIFO is empty. However, the con-
dition to generate an interrupt will not be met; therefore,
no interrupt will be generated (See Section 25.2.2
“Interrupt Operation”).
At least one instruction cycle must pass after a write to
CRCWDAT before a read of the VWORD bits is done.
25.2.2 INTERRUPT OPERATION
When the VWORD<4:0> bits make a transition from a
value of ‘1’ to ‘0’, an interrupt will be generated.
25.3 Operation in Power-Saving Modes
25.3.1 SLEEP MODE
If Sleep mode is entered while the module is operating,
the module will be suspended in its current state until
clock execution resumes.
25.3.2 IDLE MODE
To continue full module operation in Idle mode, the
CSIDL bit must be cleared prior to entry into the mode.
If CSIDL = 1, the module will behave the same way as
it does in Sleep mode; pending interrupt events will be
passed on, even though the module clocks are not
available.
DQ
BIT 0
p_clk
DQ
BIT 4
p_clk
DQ
BIT 5
p_clk
DQ
BIT 12
p_clk
XOR
SDOx
CRC Read Bus
CRC Write Bus
DQ
BIT 15
p_clk
© 2007-2012 Microchip Technology Inc. DS70292G-page 303
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
25.4 Programmable CRC Resources
Many useful resources related to Programmable CRC
are provided on the main product page of the Microchip
web site for the devices listed in this data sheet. This
product page, which can be accessed using this link,
contains the latest updates and additional information.
25.4.1 KEY RESOURCES
•Section 36. “Programmable Cyclic Redundancy
Check (CRC)” (DS70298)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 304 © 2007-2012 Microchip Technology Inc.
25.5 Programmable CRC Registers
REGISTER 25-1: CRCCON: CRC CONTROL REGISTER
U-0 U-0 R/W-0 R-0 R-0 R-0 R-0 R-0
—— CSIDL VWORD<4:0>
bit 15 bit 8
R-0 R-1 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CRCFUL CRCMPT — CRCGO PLEN<3:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13 CSIDL: CRC Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12-8 VWORD<4:0>: Pointer Value bits
Indicates the number of valid words in the FIFO. Has a maximum value of 8 when PLEN<3:0> is
greater than 7, or 16 when PLEN<3:0> is less than or equal to 7.
bit 7 CRCFUL: FIFO Full bit
1 = FIFO is full
0 = FIFO is not full
bit 6 CRCMPT: FIFO Empty bit
1 = FIFO is empty
0 = FIFO is not empty
bit 5 Unimplemented: Read as ‘0’
bit 4 CRCGO: Start CRC bit
1 = Start CRC serial shifter
0 = Turn off CRC serial shifter after FIFO is empty
bit 3-0 PLEN<3:0>: Polynomial Length bits
Denotes the length of the polynomial to be generated minus 1.
© 2007-2012 Microchip Technology Inc. DS70292G-page 305
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 25-2: CRCXOR: CRC XOR POLYNOMIAL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
X<15:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0
X<7:1> —
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-1 X<15:1>: XOR of Polynomial Term Xn Enable bits
bit 0 Unimplemented: Read as ‘0’
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 306 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 307
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
26.0 PARALLEL MASTER PORT
(PMP)
The Parallel Master Port (PMP) module is a parallel
8-bit I/O module, specifically designed to communi-
cate with a wide variety of parallel devices, such as
communication peripherals, LCDs, external memory
devices and microcontrollers. Because the interface
to parallel peripherals varies significantly, the PMP is
highly configurable.
Key features of the PMP module include:
• Fully multiplexed address/data mode
• Demultiplexed or partially multiplexed address/
data mode:
- Up to 11 address lines with single chip select
- Up to 12 address lines without chip select
• One Chip Select Line
• Programmable Strobe Options
- Individual Read and Write Strobes or;
- Read/Write Strobe with Enable Strobe
• Address Auto-Increment/Auto-Decrement
• Programmable Address/Data Multiplexing
• Programmable Polarity on Control Signals
• Legacy Parallel Slave Port Support
• Enhanced Parallel Slave Support:
- Address Support
- 4-Byte Deep Auto-Incrementing Buffer
• Programmable Wait States
• Selectable Input Voltage Levels
FIGURE 26-1: PMP MODULE OVERVIEW
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 35. “Parallel Master
Port (PMP)” (DS70299) of the
“dsPIC33F/PIC24H Family Reference
Manual”, which is available from the
Microchip website (www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
PMA<0>
PMBE
PMRD
PMWR
PMD<7:0>
PMENB
PMRD/PMWR
PMCS1
PMA<1>
PMA<10:2>(1)
PMALL
PMALH
PMA<7:0>
PMA<10:8>
EEPROM
Address Bus
Data Bus
Control Lines
dsPIC33F
LCD FIFO
Microcontroller
8-bit Data
Up to 11-bit Address
Parallel Master Port
Buffer
Note 1: 28-pin devices do not have PMA<10:2>.
PMA<14>
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 308 © 2007-2012 Microchip Technology Inc.
26.1 PMP Resources
Many useful resources related to PMP are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
26.1.1 KEY RESOURCES
•Section 35. “Parallel Master Port (PMP)”
(DS70299)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
Note: In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwproducts/
Devices.aspx?dDocName=en532311
© 2007-2012 Microchip Technology Inc. DS70292G-page 309
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
26.2 PMP Control Registers
REGISTER 26-1: PMCON: PARALLEL MASTER PORT CONTROL REGISTER
R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PMPEN — PSIDL
ADRMUX1 ADRMUX0
PTBEEN PTWREN PTRDEN
bit 15 bit 8
R/W-0 R/W-0 R/W-0(1) U-0 R/W-0(1) R/W-0 R/W-0 R/W-0
CSF1 CSF0 ALP — CS1P BEP WRSP RDSP
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 PMPEN: Parallel Master Port Enable bit
1 = PMP enabled
0 = PMP disabled, no off-chip access performed
bit 14 Unimplemented: Read as ‘0’
bit 13 PSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12-11 ADRMUX1:ADRMUX0: Address/Data Multiplexing Selection bits(1)
11 = Reserved
10 = All 16 bits of address are multiplexed on PMD<7:0> pins
01 = Lower 8 bits of address are multiplexed on PMD<7:0> pins, upper 3 bits are multiplexed on
PMA<10:8>
00 = Address and data appear on separate pins
bit 10 PTBEEN: Byte Enable Port Enable bit (16-bit Master mode)
1 = PMBE port enabled
0 = PMBE port disabled
bit 9 PTWREN: Write Enable Strobe Port Enable bit
1 = PMWR/PMENB port enabled
0 = PMWR/PMENB port disabled
bit 8 PTRDEN: Read/Write Strobe Port Enable bit
1 = PMRD/PMWR port enabled
0 = PMRD/PMWR port disabled
bit 7-6 CSF1:CSF0: Chip Select Function bits
11 = Reserved
10 = PMCS1 functions as chip select
0x = PMCS1 functions as address bit 14
bit 5 ALP: Address Latch Polarity bit(1)
1 = Active-high (PMALL and PMALH)
0 = Active-low (PMALL and PMALH)
bit 4 Unimplemented: Read as ‘0’
bit 3 CS1P: Chip Select 1 Polarity bit(1)
1 = Active-high (PMCS1/PMCS1)
0 = Active-low (PMCS1/PMCS1)
Note 1: These bits have no effect when their corresponding pins are used as address lines.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 310 © 2007-2012 Microchip Technology Inc.
bit 2 BEP: Byte Enable Polarity bit
1 = Byte enable active-high (PMBE)
0 = Byte enable active-low (PMBE)
bit 1 WRSP: Write Strobe Polarity bit
For Slave modes and Master mode 2 (PMMODE<9:8> = 00,01,10):
1 = Write strobe active-high (PMWR)
0 = Write strobe active-low (PMWR)
For Master mode 1 (PMMODE<9:8> = 11):
1 = Enable strobe active-high (PMENB)
0 = Enable strobe active-low (PMENB)
bit 0 RDSP: Read Strobe Polarity bit
For Slave modes and Master mode 2 (PMMODE<9:8> = 00,01,10):
1 = Read strobe active-high (PMRD)
0 = Read strobe active-low (PMRD)
For Master mode 1 (PMMODE<9:8> = 11):
1 = Read/write strobe active-high (PMRD/PMWR)
0 = Read/write strobe active-low (PMRD/PMWR)
REGISTER 26-1: PMCON: PARALLEL MASTER PORT CONTROL REGISTER (CONTINUED)
Note 1: These bits have no effect when their corresponding pins are used as address lines.
© 2007-2012 Microchip Technology Inc. DS70292G-page 311
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 26-2: PMMODE: PARALLEL PORT MODE REGISTER
R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WAITB<1:0>(1) WAITM<3:0> WAITE<1:0>(1)
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 BUSY: Busy bit (Master mode only)
1 = Port is busy (not useful when the processor stall is active)
0 = Port is not busy
bit 14-13 IRQM<1:0>: Interrupt Request Mode bits
11 = Interrupt generated when Read Buffer 3 is read or Write Buffer 3 is written (Buffered PSP mode)
or on a read or write operation when PMA<1:0> = 11 (Addressable PSP mode only)
10 = No interrupt generated, processor stall activated
01 = Interrupt generated at the end of the read/write cycle
00 = No interrupt generated
bit 12-11 INCM<1:0>: Increment Mode bits
11 = PSP read and write buffers auto-increment (Legacy PSP mode only)
10 = Decrement ADDR<10:0> by 1 every read/write cycle
01 = Increment ADDR<10:0> by 1 every read/write cycle
00 = No increment or decrement of address
bit 10 MODE16: 8-bit/16-bit Mode bit
1 = 16-bit mode: data register is 16 bits, a read or write to the data register invokes two 8-bit transfers
0 = 8-bit mode: data register is 8 bits, a read or write to the data register invokes one 8-bit transfer
bit 9-8 MODE<1:0>: Parallel Port Mode Select bits
11 = Master mode 1 (PMCS1, PMRD/PMWR, PMENB, PMBE, PMA<x:0> and PMD<7:0>)
10 = Master mode 2 (PMCS1, PMRD, PMWR, PMBE, PMA<x:0> and PMD<7:0>)
01 = Enhanced PSP, control signals (PMRD, PMWR, PMCS1, PMD<7:0> and PMA<1:0>)
00 = Legacy Parallel Slave Port, control signals (PMRD, PMWR, PMCS1 and PMD<7:0>)
bit 7-6 WAITB<1:0>: Data Setup to Read/Write Wait State Configuration bits(1)
11 = Data wait of 4 TCY; multiplexed address phase of 4 TCY
10 = Data wait of 3 TCY; multiplexed address phase of 3 TCY
01 = Data wait of 2 TCY; multiplexed address phase of 2 TCY
00 = Data wait of 1 TCY; multiplexed address phase of 1 TCY
bit 5-2 WAITM<3:0>: Read to Byte Enable Strobe Wait State Configuration bits
1111 = Wait of additional 15 TCY
•
•
•
0001 = Wait of additional 1 TCY
0000 = No additional wait cycles (operation forced into one TCY)
bit 1-0 WAITE<1:0>: Data Hold After Strobe Wait State Configuration bits(1)
11 = Wait of 4 TCY
10 = Wait of 3 TCY
01 = Wait of 2 TCY
00 = Wait of 1 TCY
Note 1: WAITB and WAITE bits are ignored whenever WAITM3:WAITM0 = 0000.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 312 © 2007-2012 Microchip Technology Inc.
REGISTER 26-3: PMADDR: PARALLEL PORT ADDRESS REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADDR15 CS1 ADDR<13:8>
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADDR<7:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ADDR15: Parallel Port Destination Address bits
bit 14 CS1: Chip Select 1 bit
1 = Chip select 1 is active
0 = Chip select 1 is inactive
bit 13-0 ADDR13:ADDR0: Parallel Port Destination Address bits
REGISTER 26-4: PMAEN: PARALLEL PORT ENABLE REGISTER
U-0 R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
—PTEN14— — — PTEN<10:8>(1)
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PTEN<7:2>(1) PTEN<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 Unimplemented: Read as ‘0’
bit 14 PTEN14: PMCS1 Strobe Enable bit
1 = PMA14 functions as either PMA<14> bit or PMCS1
0 = PMA14 pin functions as port I/O
bit 13-11 Unimplemented: Read as ‘0’
bit 10-2 PTEN<10:2>: PMP Address Port Enable bits(1)
1 = PMA<10:2> function as PMP address lines
0 = PMA<10:2> function as port I/O
bit 1-0 PTEN<1:0>: PMALH/PMALL Strobe Enable bits
1 = PMA1 and PMA0 function as either PMA<1:0> or PMALH and PMALL
0 = PMA1 and PMA0 pads functions as port I/O
Note 1: Devices with 28 pins do not have PMA<10:2>.
© 2007-2012 Microchip Technology Inc. DS70292G-page 313
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 26-5: PMSTAT: PARALLEL PORT STATUS REGISTER
R-0 R/W-0, HS U-0 U-0 R-0 R-0 R-0 R-0
IBF IBOV —— IB3F IB2F IB1F IB0F
bit 15 bit 8
R-1 R/W-0, HS U-0 U-0 R-1 R-1 R-1 R-1
OBE OBUF —— OB3E OB2E OB1E OB0E
bit 7 bit 0
Legend: HS = Hardware Set bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IBF: Input Buffer Full Status bit
1 = All writable input buffer registers are full
0 = Some or all of the writable input buffer registers are empty
bit 14 IBOV: Input Buffer Overflow Status bit
1 = A write attempt to a full input byte register occurred (must be cleared in software)
0 = No overflow occurred
bit 13-12 Unimplemented: Read as ‘0’
bit 11-8 IB3F:IB0F: Input Buffer x Status Full bits
1 = Input buffer contains data that has not been read (reading buffer will clear this bit)
0 = Input buffer does not contain any unread data
bit 7 OBE: Output Buffer Empty Status bit
1 = All readable output buffer registers are empty
0 = Some or all of the readable output buffer registers are full
bit 6 OBUF: Output Buffer Underflow Status bits
1 = A read occurred from an empty output byte register (must be cleared in software)
0 = No underflow occurred
bit 5-4 Unimplemented: Read as ‘0’
bit 3-0 OB3E:OB0E: Output Buffer x Status Empty bit
1 = Output buffer is empty (writing data to the buffer will clear this bit)
0 = Output buffer contains data that has not been transmitted
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 314 © 2007-2012 Microchip Technology Inc.
REGISTER 26-6: PADCFG1: PAD CONFIGURATION CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
— — — — — — RTSECSEL(1) PMPTTL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-2 Unimplemented: Read as ‘0’
bit 1 RTSECSEL: RTCC Seconds Clock Output Select bit(1)
1 = RTCC seconds clock is selected for the RTCC pin
0 = RTCC alarm pulse is selected for the RTCC pin
bit 0 PMPTTL: PMP Module TTL Input Buffer Select bit
1 = PMP module uses TTL input buffers
0 = PMP module uses Schmitt Trigger input buffers
Note 1: To enable the actual RTCC output, the RTCOE bit (RCFGCAL<10>) needs to be set.
© 2007-2012 Microchip Technology Inc. DS70292G-page 315
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
27.0 SPECIAL FEATURES
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices include
several features intended to maximize application
flexibility and reliability, and minimize cost through
elimination of external components. These are:
• Flexible configuration
• Watchdog Timer (WDT)
• Code Protection and CodeGuard™ Security
• JTAG Boundary Scan Interface
• In-Circuit Serial Programming™ (ICSP™)
• In-Circuit emulation
27.1 Configuration Bits
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices provide
nonvolatile memory implementation for device
configuration bits. Refer to Section 25. “Device Con-
figuration” (DS70194), in the “dsPIC33F/PIC24H
Family Reference Manual” for more information on this
implementation.
The Configuration bits can be programmed (read as
‘0’), or left unprogrammed (read as ‘1’), to select vari-
ous device configurations. These bits are mapped
starting at program memory location 0xF80000.
The individual Configuration bit descriptions for the
Configuration registers are shown in Table 27-2.
Note that address 0xF80000 is beyond the user program
memory space. It belongs to the configuration memory
space (0x800000-0xFFFFFF), which can only be
accessed using table reads and table writes.
The Device Configuration register map is shown in
Table 27-1.
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to the “dsPIC33F/PIC24H Family
Reference Manual”. Please see the
Microchip web site (www.microchip.com)
for the latest dsPIC33F/PIC24H Family
Reference Manual sections.
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
TABLE 27-1: DEVICE CONFIGURATION REGISTER MAP
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0xF80000 FBS RBS<1:0> —— BSS<2:0> BWRP
0xF80002 FSS(1) RSS<1:0> —— SSS<2:0> SWRP
0xF80004 FGS — — — — — GSS<1:0> GWRP
0xF80006 FOSCSEL IESO — — —FNOSC<2:0>
0xF80008 FOSC FCKSM<1:0> IOL1WAY — — OSCIOFNC POSCMD<1:0>
0xF8000A FWDT FWDTEN WINDIS — WDTPRE WDTPOST<3:0>
0xF8000C FPOR Reserved(2) ALTI2C —FPWRT<2:0>
0xF8000E FICD Reserved(3) JTAGEN — — —ICS<1:0>
0xF80010 FUID0 User Unit ID Byte 0
0xF80012 FUID1 User Unit ID Byte 1
0xF80014 FUID2 User Unit ID Byte 2
0xF80016 FUID3 User Unit ID Byte 3
Legend: — = unimplemented bit, read as ‘0’.
Note 1: This Configuration register is not available and reads as 0xFF on dsPIC33FJ32GP302/304 devices.
2: These bits are reserved and always read as ‘1’.
3: These bits are reserved for use by development tools and must be programmed as ‘1’.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 316 © 2007-2012 Microchip Technology Inc.
TABLE 27-2: dsPIC CONFIGURATION BITS DESCRIPTION
Bit Field Register RTSP Effect Description
BWRP FBS Immediate Boot Segment Program Flash Write Protection
1 = Boot segment can be written
0 = Boot segment is write-protected
BSS<2:0> FBS Immediate Boot Segment Program Flash Code Protection Size
X11 = No Boot program Flash segment
Boot space is 1K Instruction Words (except interrupt vectors)
110 = Standard security; boot program Flash segment ends at
0x0007FE
010 = High security; boot program Flash segment ends at
0x0007FE
Boot space is 4K Instruction Words (except interrupt vectors)
101 = Standard security; boot program Flash segment, ends at
0x001FFE
001 = High security; boot program Flash segment ends at
0x001FFE
Boot space is 8K Instruction Words (except interrupt vectors)
100 = Standard security; boot program Flash segment ends at
0x003FFE
000 = High security; boot program Flash segment ends at
0x003FFE
RBS<1:0>(1) FBS Immediate Boot Segment RAM Code Protection Size
11 = No Boot RAM defined
10 = Boot RAM is 128 bytes
01 = Boot RAM is 256 bytes
00 = Boot RAM is 1024 bytes
SWRP(1) FSS(1) Immediate Secure Segment Program Flash Write-Protect bit
1 = Secure Segment can bet written
0 = Secure Segment is write-protected
SSS<2:0>(1) FSS(1) Immediate Secure Segment Program Flash Code Protection Size
(Secure segment is not implemented on 32K devices)
X11 = No Secure program flash segment
Secure space is 4K IW less BS
110 = Standard security; secure program flash segment starts at
End of BS, ends at 0x001FFE
010 = High security; secure program flash segment starts at
End of BS, ends at 0x001FFE
Secure space is 8K IW less BS
101 = Standard security; secure program flash segment starts at
End of BS, ends at 0x003FFE
001 = High security; secure program flash segment starts at
End of BS, ends at 0x003FFE
Secure space is 16K IW less BS
100 = Standard security; secure program flash segment starts at
End of BS, ends at 007FFEh
000 = High security; secure program flash segment starts at
End of BS, ends at 0x007FFE
Note 1: This Configuration register is not available on dsPIC33FJ32GP302/304 devices.
© 2007-2012 Microchip Technology Inc. DS70292G-page 317
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
RSS<1:0>(1) FSS(1) Immediate Secure Segment RAM Code Protection
11 = No Secure RAM defined
10 = Secure RAM is 256 Bytes less BS RAM
01 = Secure RAM is 2048 Bytes less BS RAM
00 = Secure RAM is 4096 Bytes less BS RAM
GSS<1:0> FGS Immediate General Segment Code-Protect bit
11 = User program memory is not code-protected
10 = Standard security
0x = High security
GWRP FGS Immediate General Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
IESO FOSCSEL Immediate Two-speed Oscillator Start-up Enable bit
1 = Start-up device with FRC, then automatically switch to the
user-selected oscillator source when ready
0 = Start-up device with user-selected oscillator source
FNOSC<2:0> FOSCSEL If clock switch
is enabled,
RTSP effect is
on any device
Reset;
otherwise,
Immediate
Initial Oscillator Source Selection bits
111 = Internal Fast RC (FRC) oscillator with postscaler
110 = Internal Fast RC (FRC) oscillator with divide-by-16
101 = LPRC oscillator
100 = Secondary (LP) oscillator
011 = Primary (XT, HS, EC) oscillator with PLL
010 = Primary (XT, HS, EC) oscillator
001 = Internal Fast RC (FRC) oscillator with PLL
000 = FRC oscillator
FCKSM<1:0> FOSC Immediate Clock Switching Mode bits
1x = Clock switching is disabled, Fail-Safe Clock Monitor is
disabled
01 = Clock switching is enabled, Fail-Safe Clock Monitor is
disabled
00 = Clock switching is enabled, Fail-Safe Clock Monitor is
enabled
IOL1WAY FOSC Immediate Peripheral pin select configuration
1 = Allow only one reconfiguration
0 = Allow multiple reconfigurations
OSCIOFNC FOSC Immediate OSC2 Pin Function bit (except in XT and HS modes)
1 = OSC2 is clock output
0 = OSC2 is general purpose digital I/O pin
POSCMD<1:0> FOSC Immediate Primary Oscillator Mode Select bits
11 = Primary oscillator disabled
10 = HS Crystal Oscillator mode
01 = XT Crystal Oscillator mode
00 = EC (External Clock) mode
FWDTEN FWDT Immediate Watchdog Timer Enable bit
1 = Watchdog Timer always enabled (LPRC oscillator cannot be
disabled. Clearing the SWDTEN bit in the RCON register has
no effect.)
0 = Watchdog Timer enabled/disabled by user software (LPRC
can be disabled by clearing the SWDTEN bit in the RCON
register)
WINDIS FWDT Immediate Watchdog Timer Window Enable bit
1 = Watchdog Timer in Non-Window mode
0 = Watchdog Timer in Window mode
TABLE 27-2: dsPIC CONFIGURATION BITS DESCRIPTION (CONTINUED)
Bit Field Register RTSP Effect Description
Note 1: This Configuration register is not available on dsPIC33FJ32GP302/304 devices.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 318 © 2007-2012 Microchip Technology Inc.
WDTPRE FWDT Immediate Watchdog Timer Prescaler bit
1 = 1:128
0 = 1:32
WDTPOST<3:0> FWDT Immediate Watchdog Timer Postscaler bits
1111 = 1:32,768
1110 = 1:16,384
•
•
•
0001 = 1:2
0000 = 1:1
FPWRT<2:0> FPOR Immediate Power-on Reset Timer Value Select bits
111 = PWRT = 128 ms
110 = PWRT = 64 ms
101 = PWRT = 32 ms
100 = PWRT = 16 ms
011 = PWRT = 8 ms
010 = PWRT = 4 ms
001 = PWRT = 2 ms
000 = PWRT = Disabled
ALTI2C FPOR Immediate Alternate I2C™ pins
1 = I2C mapped to SDA1/SCL1 pins
0 = I2C mapped to ASDA1/ASCL1 pins
JTAGEN FICD Immediate JTAG Enable bit
1 = JTAG enabled
0 = JTAG disabled
ICS<1:0> FICD Immediate ICD Communication Channel Select bits
11 = Communicate on PGEC1 and PGED1
10 = Communicate on PGEC2 and PGED2
01 = Communicate on PGEC3 and PGED3
00 = Reserved, do not use
TABLE 27-2: dsPIC CONFIGURATION BITS DESCRIPTION (CONTINUED)
Bit Field Register RTSP Effect Description
Note 1: This Configuration register is not available on dsPIC33FJ32GP302/304 devices.
© 2007-2012 Microchip Technology Inc. DS70292G-page 319
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
27.2 On-Chip Voltage Regulator
All of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 devices power their core digital logic at a nominal
2.5V. This can create a conflict for designs that are
required to operate at a higher typical voltage, such as
3.3V. To simplify system design, all devices in the
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 family incorporate an
on-chip regulator that allows the device to run its core
logic from VDD.
The regulator provides power to the core from the other
VDD pins. When the regulator is enabled, a low-ESR
(less than 5 Ohms) capacitor (such as tantalum or
ceramic) must be connected to the VCAP pin
(Figure 27-1). This helps to maintain the stability of the
regulator. The recommended value for the filter capac-
itor is provided in Table 30-13 located in Section 30.1
“DC Characteristics”.
On a POR, it takes approximately 20 μs for the on-chip
voltage regulator to generate an output voltage. During
this time, designated as TSTARTUP, code execution is
disabled. TSTARTUP is applied every time the device
resumes operation after any power-down.
FIGURE 27-1: CONNECTIONS FOR THE
ON-CHIP VOLTAGE
REGULATOR(1,2,3)
27.3 BOR: Brown-out Reset
The Brown-out Reset (BOR) module is based on an
internal voltage reference circuit that monitors the reg-
ulated supply voltage VCAP. The main purpose of the
BOR module is to generate a device Reset when a
brown-out condition occurs. Brown-out conditions are
generally caused by glitches on the AC mains (for
example, missing portions of the AC cycle waveform
due to bad power transmission lines, or voltage sags
due to excessive current draw when a large inductive
load is turned on).
A BOR generates a Reset pulse, which resets the
device. The BOR selects the clock source, based on
the device Configuration bit values (FNOSC<2:0> and
POSCMD<1:0>).
If an oscillator mode is selected, the BOR activates the
Oscillator Start-up Timer (OST). The system clock is
held until OST expires. If the PLL is used, the clock is
held until the LOCK bit (OSCCON<5>) is ‘1’.
Concurrently, the PWRT time-out (TPWRT) is applied
before the internal Reset is released. If TPWRT = 0 and
a crystal oscillator is being used, then a nominal delay
of TFSCM = 100 is applied. The total delay in this case
is TFSCM.
The BOR Status bit (RCON<1>) is set to indicate that a
BOR has occurred. The BOR circuit continues to oper-
ate while in Sleep or Idle modes and resets the device
should VDD fall below the BOR threshold voltage.
Note: It is important for the low-ESR capacitor to
be placed as close as possible to the VCAP
pin.
Note 1: These are typical operating voltages. Refer to
Table 30-13, located in Section 30.1 “DC
Characteristics” for the full operating ranges
of VDD and VCAP.
2: It is important for the low-ESR capacitor to be
placed as close as possible to the VCAP pin.
3: Typical VCAP pin voltage = 2.5V when
VDD ≥ VDDMIN.
VDD
VCAP
VSS
dsPIC33F
CEFC
3.3V
10 µF
Tantalum
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 320 © 2007-2012 Microchip Technology Inc.
27.4 Watchdog Timer (WDT)
For dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices, the WDT
is driven by the LPRC oscillator. When the WDT is
enabled, the clock source is also enabled.
27.4.1 PRESCALER/POSTSCALER
The nominal WDT clock source from LPRC is 32 kHz.
This feeds a prescaler than can be configured for either
5-bit (divide-by-32) or 7-bit (divide-by-128) operation.
The prescaler is set by the WDTPRE Configuration bit.
With a 32 kHz input, the prescaler yields a nominal
WDT time-out period (TWDT) of 1 ms in 5-bit mode, or
4 ms in 7-bit mode.
A variable postscaler divides down the WDT prescaler
output and allows for a wide range of time-out periods.
The postscaler is controlled by the WDTPOST<3:0>
Configuration bits (FWDT<3:0>), which allow the selec-
tion of 16 settings, from 1:1 to 1:32,768. Using the pres-
caler and postscaler, time-out periods ranging from
1 ms to 131 seconds can be achieved.
The WDT, prescaler and postscaler are reset:
• On any form of device Reset
• On the completion of a clock switch, whether
invoked by software (i.e., setting the OSWEN bit
after changing the NOSC bits) or by hardware
(i.e., Fail-Safe Clock Monitor)
• When a PWRSAV instruction is executed
(i.e., Sleep or Idle mode is entered)
• When the device exits Sleep or Idle mode to
resume normal operation
•By a CLRWDT instruction during normal execution
27.4.2 SLEEP AND IDLE MODES
If the WDT is enabled, it continues to run during Sleep or
Idle modes. When the WDT time-out occurs, the device
wakes the device and code execution continues from
where the PWRSAV instruction was executed. The corre-
sponding SLEEP or IDLE bits (RCON<3,2>) needs to be
cleared in software after the device wakes up.
27.4.3 ENABLING WDT
The WDT is enabled or disabled by the FWDTEN
Configuration bit in the FWDT Configuration register.
When the FWDTEN Configuration bit is set, the WDT is
always enabled.
The WDT can be optionally controlled in software
when the FWDTEN Configuration bit has been
programmed to ‘0’. The WDT is enabled in software
by setting the SWDTEN control bit (RCON<5>). The
SWDTEN control bit is cleared on any device Reset.
The software WDT option allows the user application
to enable the WDT for critical code segments and
disable the WDT during non-critical segments for
maximum power savings.
The WDT flag, WDTO bit (RCON<4>), is not automatically
cleared following a WDT time-out. To detect subsequent
WDT events, the flag must be cleared in software.
FIGURE 27-2: WDT BLOCK DIAGRAM
Note: The CLRWDT and PWRSAV instructions
clear the prescaler and postscaler counts
when executed.
Note: If the WINDIS bit (FWDT<6>) is cleared, the
CLRWDT instruction should be executed by
the application software only during the last
1/4 of the WDT period. This CLRWDT win-
dow can be determined by using a timer. If
a CLRWDT instruction is executed before
this window, a WDT Reset occurs.
All Device Resets
Transition to New Clock Source
Exit Sleep or Idle Mode
PWRSAV Instruction
CLRWDT Instruction
0
1
WDTPRE WDTPOST<3:0>
Watchdog Timer
Prescaler
(divide by N1)
Postscaler
(divide by N2)
Sleep/Idle
WDT
WDT Window Select
WINDIS
WDT
CLRWDT Instruction
SWDTEN
FWDTEN
LPRC Clock
RS RS
Wake-up
Reset
© 2007-2012 Microchip Technology Inc. DS70292G-page 321
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
27.5 JTAG Interface
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 devices implement a
JTAG interface, which supports boundary scan device
testing, as well as in-circuit programming. Detailed
information on this interface is provided in future
revisions of the document.
27.6 In-Circuit Serial Programming™
(ICSP)™
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 devices can be
serially programmed while in the end application circuit.
This is done with two lines for clock and data and three
other lines for power, ground and the programming
sequence. Serial programming allows customers to
manufacture boards with unprogrammed devices and
then program the digital signal controller just before
shipping the product. Serial programming also allows
the most recent firmware or a custom firmware to be
programmed. Refer to the “dsPIC33F/PIC24H Flash
Programming Specification” (DS70152) for details
about In-Circuit Serial Programming (ICSP).
Any of the three pairs of programming clock/data pins
can be used:
• PGEC1 and PGED1
• PGEC2 and PGED2
• PGEC3 and PGED3
27.7 In-Circuit Debugger
When MPLAB® ICD 3 is selected as a debugger, the in-
circuit debugging functionality is enabled. This function
allows simple debugging functions when used with
MPLAB IDE. Debugging functionality is controlled
through the PGECx (Emulation/Debug Clock) and
PGEDx (Emulation/Debug Data) pin functions.
Any of the three pairs of debugging clock/data pins can
be used:
• PGEC1 and PGED1
• PGEC2 and PGED2
• PGEC3 and PGED3
To use the in-circuit debugger function of the device,
the design must implement ICSP connections to
MCLR, VDD, VSS, PGC, PGD and the PGECx and
PGEDx pin pairs. In addition, when the feature is
enabled, some of the resources are not available for
general use. These resources include the first 80 bytes
of data RAM and two I/O pins.
27.8 Code Protection and
CodeGuard™ Security
The dsPIC33FJ64GPX02/X04 and
dsPIC33FJ128GPX02/X04 devices offer advanced
implementation of CodeGuard Security that supports
BS, SS and GS while, the dsPIC33FJ32GP302/304
devices offer the intermediate level of CodeGuard
Security that supports only BS and GS. CodeGuard
Security enables multiple parties to securely share
resources (memory, interrupts and peripherals) on a
single chip. This feature helps protect individual
Intellectual Property in collaborative system designs.
When coupled with software encryption libraries,
CodeGuard Security can be used to securely update
Flash even when multiple IPs reside on the single chip.
The code protection features vary depending on the
actual dsPIC33F implemented. The following sections
provide an overview of these features.
Secure segment and RAM protection is implemented
on the dsPIC33FJ64GPX02/X04 and
dsPIC33FJ128GPX02/X04 devices. The
dsPIC33FJ32GP302/304 devices do not support
secure segment and RAM protection.
Note: Refer to Section 24. “Programming and
Diagnostics” (DS70207) of the
“dsPIC33F/PIC24H Family Reference
Manual” for further information on usage,
configuration and operation of the JTAG
interface.
Note: Refer to Section 23. “CodeGuard™
Security” (DS70199) of the “dsPIC33F/
PIC24H Family Reference Manual” for
further information on usage,
configuration and operation of CodeGuard
Security.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 322 © 2007-2012 Microchip Technology Inc.
TABLE 27-3: CODE FLASH SECURITY SEGMENT SIZES FOR 32 KB DEVICES
CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K
SSS<2:0> = x11
0K
0x0057FEh
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x001FFEh
0x002000h
GS = 11008 IW
0x0157FEh
0x0057FEh
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x001FFEh
0x002000h
0x0157FEh
GS = 10240 IW
BS = 768 IW
VS = 256 IW
GS = 7168 IW
BS = 3840 IW
0x0057FEh
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 3072 IW
BS = 7936 IW
0x0057FEh
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x001FFEh
0x002000h
0x0157FEh
© 2007-2012 Microchip Technology Inc. DS70292G-page 323
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 27-4: CODE FLASH SECURITY SEGMENT SIZES FOR 64 KB DEVICES
CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K
SSS<2:0> = x11
0K
SSS<2:0> = x10
4K
SSS<2:0> = x01
8K
SSS<2:0> = x00
16K
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
GS = 21760 IW
0x0157FEh
VS = 256 IW
GS = 20992 IW
BS = 768 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 17920 IW
BS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 17920 IW
SS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 17920 IW
BS = 768 IW
SS = 3072 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 17920 IW
BS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
SS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
BS = 768 IW
SS = 7168 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
BS = 3840 IW
SS = 4096 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 13824 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 5632 IW
SS = 16128 IW 0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 5632 IW
BS = 768 IW
SS = 15360 IW 0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 5632 IW
BS = 3840 IW
SS = 12288 IW 0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
VS = 256 IW
GS = 5632 IW
BS = 7936 IW
SS = 8192 IW 0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 324 © 2007-2012 Microchip Technology Inc.
TABLE 27-5: CODE FLASH SECURITY SEGMENT SIZES FOR 128 KB DEVICES
CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K
SSS<2:0> = x11
0K
SSS<2:0> = x10
4K
SSS<2:0> = x01
8K
SSS<2:0> = x00
16K
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 43776 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 43008 IW
BS = 768 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 39936 IW
BS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
GS = 39936 IW
SS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
GS = 39936 IW
BS = 768 IW
SS = 3072 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
GS = 39936 IW
BS = 3840 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00ABFEh
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
SS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
BS = 768 IW
SS = 7168 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
BS = 3840 IW
SS = 4096 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 35840 IW
BS = 7936 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 27648 IW
SS = 16128 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 27648 IW
BS = 768 IW
SS = 15360 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 27648 IW
BS = 3840 IW
SS = 12288 IW
0x007FFEh
0x008000h
0x003FFEh
0x004000h
0x0001FEh
0x000200h
0x000000h
VS = 256 IW
0x0007FEh
0x000800h
0x00FFFEh
0x010000h
0x001FFEh
0x002000h
0x0157FEh
GS = 27648 IW
BS = 7936 IW
SS = 8192 IW
© 2007-2012 Microchip Technology Inc. DS70292G-page 325
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
28.0 INSTRUCTION SET SUMMARY
The dsPIC33F instruction set is identical to that of the
dsPIC30F.
Most instructions are a single program memory word
(24 bits). Only three instructions require two program
memory locations.
Each single-word instruction is a 24-bit word, divided
into an 8-bit opcode, which specifies the instruction
type and one or more operands, which further specify
the operation of the instruction.
The instruction set is highly orthogonal and is grouped
into five basic categories:
• Word or byte-oriented operations
• Bit-oriented operations
• Literal operations
• DSP operations
• Control operations
Table 28-1 shows the general symbols used in
describing the instructions.
The dsPIC33F instruction set summary in Ta b l e 2 8 - 2
lists all the instructions, along with the status flags
affected by each instruction.
Most word or byte-oriented W register instructions
(including barrel shift instructions) have three
operands:
• The first source operand, which is typically a
register ‘Wb’ without any address modifier
• The second source operand, which is typically a
register ‘Ws’ with or without an address modifier
• The destination of the result, which is typically a
register ‘Wd’ with or without an address modifier
However, word or byte-oriented file register instructions
have two operands:
• The file register specified by the value ‘f’
• The destination, which could be either the file
register ‘f’ or the W0 register, which is denoted as
‘WREG’
Most bit-oriented instructions (including simple rotate/
shift instructions) have two operands:
• The W register (with or without an address
modifier) or file register (specified by the value of
‘Ws’ or ‘f’)
• The bit in the W register or file register (specified
by a literal value or indirectly by the contents of
register ‘Wb’)
The literal instructions that involve data movement can
use some of the following operands:
• A literal value to be loaded into a W register or file
register (specified by ‘k’)
• The W register or file register where the literal
value is to be loaded (specified by ‘Wb’ or ‘f’)
However, literal instructions that involve arithmetic or
logical operations use some of the following operands:
• The first source operand, which is a register ‘Wb’
without any address modifier
• The second source operand, which is a literal
value
• The destination of the result (only if not the same
as the first source operand), which is typically a
register ‘Wd’ with or without an address modifier
The MAC class of DSP instructions can use some of the
following operands:
• The accumulator (A or B) to be used (required
operand)
• The W registers to be used as the two operands
• The X and Y address space prefetch operations
• The X and Y address space prefetch destinations
• The accumulator write back destination
The other DSP instructions do not involve any
multiplication and can include:
• The accumulator to be used (required)
• The source or destination operand (designated as
Wso or Wdo, respectively) with or without an
address modifier
• The amount of shift specified by a W register ‘Wn’
or a literal value
The control instructions can use some of the following
operands:
• A program memory address
• The mode of the table read and table write
instructions
Note: This data sheet summarizes the features
of the dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 families of
devices. It is not intended to be a compre-
hensive reference source. To complement
the information in this data sheet, refer to
the “dsPIC33F/PIC24H Family Reference
Manual”. Please see the Microchip web
site (www.microchip.com) for the latest
reference manual sections.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 326 © 2007-2012 Microchip Technology Inc.
Most instructions are a single word. Certain double-
word instructions are designed to provide all the
required information in these 48 bits. In the second
word, the 8 MSbs are ‘0’s. If this second word is
executed as an instruction (by itself), it executes as a
NOP.
The double-word instructions execute in two instruction
cycles.
Most single-word instructions are executed in a single
instruction cycle, unless a conditional test is true, or the
program counter is changed as a result of the
instruction. In these cases, the execution takes two
instruction cycles with the additional instruction cycle(s)
executed as a NOP. Notable exceptions are the BRA
(unconditional/computed branch), indirect CALL/GOTO,
all table reads and writes and RETURN/RETFIE instruc-
tions, which are single-word instructions but take two or
three cycles. Certain instructions that involve skipping
over the subsequent instruction require either two or
three cycles if the skip is performed, depending on
whether the instruction being skipped is a single-word or
two-word instruction. Moreover, double-word moves
require two cycles.
Note: For more details on the instruction set,
refer to the “16-bit MCU and DSC
Programmer’s Reference Manual”
(DS70157).
TABLE 28-1: SYMBOLS USED IN OPCODE DESCRIPTIONS
Field Description
#text Means literal defined by “text”
(text) Means “content of text”
[text] Means “the location addressed by text”
{ } Optional field or operation
<n:m> Register bit field
.b Byte mode selection
.d Double-Word mode selection
.S Shadow register select
.w Word mode selection (default)
Acc One of two accumulators {A, B}
AWB Accumulator write back destination address register ∈ {W13, [W13]+ = 2}
bit4 4-bit bit selection field (used in word addressed instructions) ∈ {0...15}
C, DC, N, OV, Z MCU Status bits: Carry, Digit Carry, Negative, Overflow, Sticky Zero
Expr Absolute address, label or expression (resolved by the linker)
f File register address ∈ {0x0000...0x1FFF}
lit1 1-bit unsigned literal ∈ {0,1}
lit4 4-bit unsigned literal ∈ {0...15}
lit5 5-bit unsigned literal ∈ {0...31}
lit8 8-bit unsigned literal ∈ {0...255}
lit10 10-bit unsigned literal ∈ {0...255} for Byte mode, {0:1023} for Word mode
lit14 14-bit unsigned literal ∈ {0...16384}
lit16 16-bit unsigned literal ∈ {0...65535}
lit23 23-bit unsigned literal ∈ {0...8388608}; LSb must be ‘0’
None Field does not require an entry, can be blank
OA, OB, SA, SB DSP Status bits: ACCA Overflow, ACCB Overflow, ACCA Saturate, ACCB Saturate
PC Program Counter
Slit10 10-bit signed literal ∈ {-512...511}
Slit16 16-bit signed literal ∈ {-32768...32767}
Slit6 6-bit signed literal ∈ {-16...16}
Wb Base W register ∈ {W0...W15}
Wd Destination W register ∈ { Wd, [Wd], [Wd++], [Wd--], [++Wd], [--Wd] }
Wdo Destination W register ∈
{ Wnd, [Wnd], [Wnd++], [Wnd--], [++Wnd], [--Wnd], [Wnd+Wb] }
Wm,Wn Dividend, Divisor working register pair (direct addressing)
© 2007-2012 Microchip Technology Inc. DS70292G-page 327
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Wm*Wm Multiplicand and Multiplier working register pair for Square instructions ∈
{W4 * W4,W5 * W5,W6 * W6,W7 * W7}
Wm*Wn Multiplicand and Multiplier working register pair for DSP instructions ∈
{W4 * W5,W4 * W6,W4 * W7,W5 * W6,W5 * W7,W6 * W7}
Wn One of 16 working registers ∈ {W0...W15}
Wnd One of 16 destination working registers ∈ {W0...W15}
Wns One of 16 source working registers ∈ {W0...W15}
WREG W0 (working register used in file register instructions)
Ws Source W register ∈ { Ws, [Ws], [Ws++], [Ws--], [++Ws], [--Ws] }
Wso Source W register ∈
{ Wns, [Wns], [Wns++], [Wns--], [++Wns], [--Wns], [Wns+Wb] }
Wx X data space prefetch address register for DSP instructions
∈{[W8] + = 6, [W8] + = 4, [W8] + = 2, [W8], [W8] - = 6, [W8] - = 4, [W8] - = 2,
[W9] + = 6, [W9] + = 4, [W9] + = 2, [W9], [W9] - = 6, [W9] - = 4, [W9] - = 2,
[W9 + W12], none}
Wxd X data space prefetch destination register for DSP instructions ∈ {W4...W7}
Wy Y data space prefetch address register for DSP instructions
∈{[W10] + = 6, [W10] + = 4, [W10] + = 2, [W10], [W10] - = 6, [W10] - = 4, [W10] - = 2,
[W11] + = 6, [W11] + = 4, [W11] + = 2, [W11], [W11] - = 6, [W11] - = 4, [W11] - = 2,
[W11 + W12], none}
Wyd Y data space prefetch destination register for DSP instructions ∈ {W4...W7}
TABLE 28-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED)
Field Description
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 328 © 2007-2012 Microchip Technology Inc.
TABLE 28-2: INSTRUCTION SET OVERVIEW
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
1ADD ADD Acc Add Accumulators 1 1 OA,OB,SA,SB
ADD f f = f + WREG 1 1 C,DC,N,OV,Z
ADD f,WREG WREG = f + WREG 1 1 C,DC,N,OV,Z
ADD #lit10,Wn Wd = lit10 + Wd 1 1 C,DC,N,OV,Z
ADD Wb,Ws,Wd Wd = Wb + Ws 1 1 C,DC,N,OV,Z
ADD Wb,#lit5,Wd Wd = Wb + lit5 1 1 C,DC,N,OV,Z
ADD Wso,#Slit4,Acc 16-bit Signed Add to Accumulator 1 1 OA,OB,SA,SB
2ADDC ADDC f f = f + WREG + (C) 1 1 C,DC,N,OV,Z
ADDC f,WREG WREG = f + WREG + (C) 1 1 C,DC,N,OV,Z
ADDC #lit10,Wn Wd = lit10 + Wd + (C) 1 1 C,DC,N,OV,Z
ADDC Wb,Ws,Wd Wd = Wb + Ws + (C) 1 1 C,DC,N,OV,Z
ADDC Wb,#lit5,Wd Wd = Wb + lit5 + (C) 1 1 C,DC,N,OV,Z
3AND AND f f = f .AND. WREG 1 1 N,Z
AND f,WREG WREG = f .AND. WREG 1 1 N,Z
AND #lit10,Wn Wd = lit10 .AND. Wd 1 1 N,Z
AND Wb,Ws,Wd Wd = Wb .AND. Ws 1 1 N,Z
AND Wb,#lit5,Wd Wd = Wb .AND. lit5 1 1 N,Z
4ASR ASR f f = Arithmetic Right Shift f 1 1 C,N,OV,Z
ASR f,WREG WREG = Arithmetic Right Shift f 1 1 C,N,OV,Z
ASR Ws,Wd Wd = Arithmetic Right Shift Ws 1 1 C,N,OV,Z
ASR Wb,Wns,Wnd Wnd = Arithmetic Right Shift Wb by Wns 1 1 N,Z
ASR Wb,#lit5,Wnd Wnd = Arithmetic Right Shift Wb by lit5 1 1 N,Z
5BCLR BCLR f,#bit4 Bit Clear f 1 1 None
BCLR Ws,#bit4 Bit Clear Ws 1 1 None
6BRA BRA C,Expr Branch if Carry 1 1 (2) None
BRA GE,Expr Branch if greater than or equal 1 1 (2) None
BRA GEU,Expr Branch if unsigned greater than or equal 1 1 (2) None
BRA GT,Expr Branch if greater than 1 1 (2) None
BRA GTU,Expr Branch if unsigned greater than 1 1 (2) None
BRA LE,Expr Branch if less than or equal 1 1 (2) None
BRA LEU,Expr Branch if unsigned less than or equal 1 1 (2) None
BRA LT,Expr Branch if less than 1 1 (2) None
BRA LTU,Expr Branch if unsigned less than 1 1 (2) None
BRA N,Expr Branch if Negative 1 1 (2) None
BRA NC,Expr Branch if Not Carry 1 1 (2) None
BRA NN,Expr Branch if Not Negative 1 1 (2) None
BRA NOV,Expr Branch if Not Overflow 1 1 (2) None
BRA NZ,Expr Branch if Not Zero 1 1 (2) None
BRA OA,Expr Branch if Accumulator A overflow 1 1 (2) None
BRA OB,Expr Branch if Accumulator B overflow 1 1 (2) None
BRA OV,Expr Branch if Overflow 1 1 (2) None
BRA SA,Expr Branch if Accumulator A saturated 1 1 (2) None
BRA SB,Expr Branch if Accumulator B saturated 1 1 (2) None
BRA Expr Branch Unconditionally 1 2 None
BRA Z,Expr Branch if Zero 1 1 (2) None
BRA Wn Computed Branch 1 2 None
7BSET BSET f,#bit4 Bit Set f 1 1 None
BSET Ws,#bit4 Bit Set Ws 1 1 None
8BSW BSW.C Ws,Wb Write C bit to Ws<Wb> 1 1 None
BSW.Z Ws,Wb Write Z bit to Ws<Wb> 1 1 None
9BTG BTG f,#bit4 Bit Toggle f 1 1 None
BTG Ws,#bit4 Bit Toggle Ws 1 1 None
© 2007-2012 Microchip Technology Inc. DS70292G-page 329
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
10 BTSC BTSC f,#bit4 Bit Test f, Skip if Clear 1 1
(2 or 3)
None
BTSC Ws,#bit4 Bit Test Ws, Skip if Clear 1 1
(2 or 3)
None
11 BTSS BTSS f,#bit4 Bit Test f, Skip if Set 1 1
(2 or 3)
None
BTSS Ws,#bit4 Bit Test Ws, Skip if Set 1 1
(2 or 3)
None
12 BTST BTST f,#bit4 Bit Test f 1 1 Z
BTST.C Ws,#bit4 Bit Test Ws to C 1 1 C
BTST.Z Ws,#bit4 Bit Test Ws to Z 1 1 Z
BTST.C Ws,Wb Bit Test Ws<Wb> to C 1 1 C
BTST.Z Ws,Wb Bit Test Ws<Wb> to Z 1 1 Z
13 BTSTS BTSTS f,#bit4 Bit Test then Set f 1 1 Z
BTSTS.C Ws,#bit4 Bit Test Ws to C, then Set 1 1 C
BTSTS.Z Ws,#bit4 Bit Test Ws to Z, then Set 1 1 Z
14 CALL CALL lit23 Call subroutine 2 2 None
CALL Wn Call indirect subroutine 1 2 None
15 CLR CLR f f = 0x0000 1 1 None
CLR WREG WREG = 0x0000 1 1 None
CLR Ws Ws = 0x0000 1 1 None
CLR Acc,Wx,Wxd,Wy,Wyd,AWB Clear Accumulator 1 1 OA,OB,SA,SB
16 CLRWDT CLRWDT Clear Watchdog Timer 1 1 WDTO,Sleep
17 COM COM f f = f 11 N,Z
COM f,WREG WREG = f 11 N,Z
COM Ws,Wd Wd = Ws 11 N,Z
18 CP CP f Compare f with WREG 1 1 C,DC,N,OV,Z
CP Wb,#lit5 Compare Wb with lit5 1 1 C,DC,N,OV,Z
CP Wb,Ws Compare Wb with Ws (Wb – Ws) 1 1 C,DC,N,OV,Z
19 CP0 CP0 f Compare f with 0x0000 1 1 C,DC,N,OV,Z
CP0 Ws Compare Ws with 0x0000 1 1 C,DC,N,OV,Z
20 CPB CPB f Compare f with WREG, with Borrow 1 1 C,DC,N,OV,Z
CPB Wb,#lit5 Compare Wb with lit5, with Borrow 1 1 C,DC,N,OV,Z
CPB Wb,Ws Compare Wb with Ws, with Borrow
(Wb – Ws – C)
1 1 C,DC,N,OV,Z
21 CPSEQ CPSEQ Wb, Wn Compare Wb with Wn, skip if = 1 1
(2 or 3)
None
22 CPSGT CPSGT Wb, Wn Compare Wb with Wn, skip if > 1 1
(2 or 3)
None
23 CPSLT CPSLT Wb, Wn Compare Wb with Wn, skip if < 1 1
(2 or 3)
None
24 CPSNE CPSNE Wb, Wn Compare Wb with Wn, skip if ≠11
(2 or 3)
None
25 DAW DAW Wn Wn = decimal adjust Wn 1 1 C
26 DEC DEC f f = f – 1 1 1 C,DC,N,OV,Z
DEC f,WREG WREG = f – 1 1 1 C,DC,N,OV,Z
DEC Ws,Wd Wd = Ws – 1 1 1 C,DC,N,OV,Z
27 DEC2 DEC2 f f = f – 2 1 1 C,DC,N,OV,Z
DEC2 f,WREG WREG = f – 2 1 1 C,DC,N,OV,Z
DEC2 Ws,Wd Wd = Ws – 2 1 1 C,DC,N,OV,Z
28 DISI DISI #lit14 Disable Interrupts for k instruction cycles 1 1 None
TABLE 28-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 330 © 2007-2012 Microchip Technology Inc.
29 DIV DIV.S Wm,Wn Signed 16/16-bit Integer Divide 1 18 N,Z,C,OV
DIV.SD Wm,Wn Signed 32/16-bit Integer Divide 1 18 N,Z,C,OV
DIV.U Wm,Wn Unsigned 16/16-bit Integer Divide 1 18 N,Z,C,OV
DIV.UD Wm,Wn Unsigned 32/16-bit Integer Divide 1 18 N,Z,C,OV
30 DIVF DIVF Wm,Wn Signed 16/16-bit Fractional Divide 1 18 N,Z,C,OV
31 DO DO #lit14,Expr Do code to PC + Expr, lit14 + 1 times 2 2 None
DO Wn,Expr Do code to PC + Expr, (Wn) + 1 times 2 2 None
32 ED ED Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance (no accumulate) 1 1 OA,OB,OAB,
SA,SB,SAB
33 EDAC EDAC Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance 1 1 OA,OB,OAB,
SA,SB,SAB
34 EXCH EXCH Wns,Wnd Swap Wns with Wnd 1 1 None
35 FBCL FBCL Ws,Wnd Find Bit Change from Left (MSb) Side 1 1 C
36 FF1L FF1L Ws,Wnd Find First One from Left (MSb) Side 1 1 C
37 FF1R FF1R Ws,Wnd Find First One from Right (LSb) Side 1 1 C
38 GOTO GOTO Expr Go to address 2 2 None
GOTO Wn Go to indirect 1 2 None
39 INC INC f f = f + 1 1 1 C,DC,N,OV,Z
INC f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z
INC Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z
40 INC2 INC2 f f = f + 2 1 1 C,DC,N,OV,Z
INC2 f,WREG WREG = f + 2 1 1 C,DC,N,OV,Z
INC2 Ws,Wd Wd = Ws + 2 1 1 C,DC,N,OV,Z
41 IOR IOR f f = f .IOR. WREG 1 1 N,Z
IOR f,WREG WREG = f .IOR. WREG 1 1 N,Z
IOR #lit10,Wn Wd = lit10 .IOR. Wd 1 1 N,Z
IOR Wb,Ws,Wd Wd = Wb .IOR. Ws 1 1 N,Z
IOR Wb,#lit5,Wd Wd = Wb .IOR. lit5 1 1 N,Z
42 LAC LAC Wso,#Slit4,Acc Load Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
43 LNK LNK #lit14 Link Frame Pointer 1 1 None
44 LSR LSR f f = Logical Right Shift f 1 1 C,N,OV,Z
LSR f,WREG WREG = Logical Right Shift f 1 1 C,N,OV,Z
LSR Ws,Wd Wd = Logical Right Shift Ws 1 1 C,N,OV,Z
LSR Wb,Wns,Wnd Wnd = Logical Right Shift Wb by Wns 1 1 N,Z
LSR Wb,#lit5,Wnd Wnd = Logical Right Shift Wb by lit5 1 1 N,Z
45 MAC MAC Wm*Wn,Acc,Wx,Wxd,Wy,Wyd
,
AWB
Multiply and Accumulate 1 1 OA,OB,OAB,
SA,SB,SAB
MAC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square and Accumulate 1 1 OA,OB,OAB,
SA,SB,SAB
46 MOV MOV f,Wn Move f to Wn 1 1 None
MOV f Move f to f 1 1 None
MOV f,WREG Move f to WREG 1 1 N,Z
MOV #lit16,Wn Move 16-bit literal to Wn 1 1 None
MOV.b #lit8,Wn Move 8-bit literal to Wn 1 1 None
MOV Wn,f Move Wn to f 1 1 None
MOV Wso,Wdo Move Ws to Wd 1 1 None
MOV WREG,f Move WREG to f 1 1 None
MOV.D Wns,Wd Move Double from W(ns):W(ns + 1) to Wd 1 2 None
MOV.D Ws,Wnd Move Double from Ws to W(nd + 1):W(nd) 1 2 None
47 MOVSAC MOVSAC Acc,Wx,Wxd,Wy,Wyd,AWB Prefetch and store accumulator 1 1 None
TABLE 28-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
© 2007-2012 Microchip Technology Inc. DS70292G-page 331
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
48 MPY MPY
Wm*Wn,Acc,Wx,Wxd,Wy,Wyd
Multiply Wm by Wn to Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
MPY
Wm*Wm,Acc,Wx,Wxd,Wy,Wyd
Square Wm to Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
49 MPY.N MPY.N
Wm*Wn,Acc,Wx,Wxd,Wy,Wyd
-(Multiply Wm by Wn) to Accumulator 1 1 None
50 MSC MSC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd
,
AWB
Multiply and Subtract from Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
51 MUL MUL.SS Wb,Ws,Wnd {Wnd + 1, Wnd} = signed(Wb) * signed(Ws) 1 1 None
MUL.SU Wb,Ws,Wnd {Wnd + 1, Wnd} = signed(Wb) * unsigned(Ws) 1 1 None
MUL.US Wb,Ws,Wnd {Wnd + 1, Wnd} = unsigned(Wb) * signed(Ws) 1 1 None
MUL.UU Wb,Ws,Wnd {Wnd + 1, Wnd} = unsigned(Wb) *
unsigned(Ws)
1 1 None
MUL.SU Wb,#lit5,Wnd {Wnd + 1, Wnd} = signed(Wb) * unsigned(lit5) 1 1 None
MUL.UU Wb,#lit5,Wnd {Wnd + 1, Wnd} = unsigned(Wb) *
unsigned(lit5)
1 1 None
MUL f W3:W2 = f * WREG 1 1 None
52 NEG NEG Acc Negate Accumulator 1 1 OA,OB,OAB,
SA,SB,SAB
NEG f f = f + 1 1 1 C,DC,N,OV,Z
NEG f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z
NEG Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z
53 NOP NOP No Operation 1 1 None
NOPR No Operation 1 1 None
54 POP POP f Pop f from Top-of-Stack (TOS) 1 1 None
POP Wdo Pop from Top-of-Stack (TOS) to Wdo 1 1 None
POP.D Wnd Pop from Top-of-Stack (TOS) to
W(nd):W(nd + 1)
1 2 None
POP.S Pop Shadow Registers 1 1 All
55 PUSH PUSH f Push f to Top-of-Stack (TOS) 1 1 None
PUSH Wso Push Wso to Top-of-Stack (TOS) 1 1 None
PUSH.D Wns Push W(ns):W(ns + 1) to Top-of-Stack (TOS) 1 2 None
PUSH.S Push Shadow Registers 1 1 None
56 PWRSAV PWRSAV #lit1 Go into Sleep or Idle mode 1 1 WDTO,Sleep
57 RCALL RCALL Expr Relative Call 1 2 None
RCALL Wn Computed Call 1 2 None
58 REPEAT REPEAT #lit14 Repeat Next Instruction lit14 + 1 times 1 1 None
REPEAT Wn Repeat Next Instruction (Wn) + 1 times 1 1 None
59 RESET RESET Software device Reset 1 1 None
60 RETFIE RETFIE Return from interrupt 1 3 (2) None
61 RETLW RETLW #lit10,Wn Return with literal in Wn 1 3 (2) None
62 RETURN RETURN Return from Subroutine 1 3 (2) None
63 RLC RLC f f = Rotate Left through Carry f 1 1 C,N,Z
RLC f,WREG WREG = Rotate Left through Carry f 1 1 C,N,Z
RLC Ws,Wd Wd = Rotate Left through Carry Ws 1 1 C,N,Z
64 RLNC RLNC f f = Rotate Left (No Carry) f 1 1 N,Z
RLNC f,WREG WREG = Rotate Left (No Carry) f 1 1 N,Z
RLNC Ws,Wd Wd = Rotate Left (No Carry) Ws 1 1 N,Z
65 RRC RRC f f = Rotate Right through Carry f 1 1 C,N,Z
RRC f,WREG WREG = Rotate Right through Carry f 1 1 C,N,Z
RRC Ws,Wd Wd = Rotate Right through Carry Ws 1 1 C,N,Z
TABLE 28-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 332 © 2007-2012 Microchip Technology Inc.
66 RRNC RRNC f f = Rotate Right (No Carry) f 1 1 N,Z
RRNC f,WREG WREG = Rotate Right (No Carry) f 1 1 N,Z
RRNC Ws,Wd Wd = Rotate Right (No Carry) Ws 1 1 N,Z
67 SAC SAC Acc,#Slit4,Wdo Store Accumulator 1 1 None
SAC.R Acc,#Slit4,Wdo Store Rounded Accumulator 1 1 None
68 SE SE Ws,Wnd Wnd = sign-extended Ws 1 1 C,N,Z
69 SETM SETM f f = 0xFFFF 1 1 None
SETM WREG WREG = 0xFFFF 1 1 None
SETM Ws Ws = 0xFFFF 1 1 None
70 SFTAC SFTAC Acc,Wn Arithmetic Shift Accumulator by (Wn) 1 1 OA,OB,OAB,
SA,SB,SAB
SFTAC Acc,#Slit6 Arithmetic Shift Accumulator by Slit6 1 1 OA,OB,OAB,
SA,SB,SAB
71 SL SL f f = Left Shift f 1 1 C,N,OV,Z
SL f,WREG WREG = Left Shift f 1 1 C,N,OV,Z
SL Ws,Wd Wd = Left Shift Ws 1 1 C,N,OV,Z
SL Wb,Wns,Wnd Wnd = Left Shift Wb by Wns 1 1 N,Z
SL Wb,#lit5,Wnd Wnd = Left Shift Wb by lit5 1 1 N,Z
72 SUB SUB Acc Subtract Accumulators 1 1 OA,OB,OAB,
SA,SB,SAB
SUB f f = f – WREG 1 1 C,DC,N,OV,Z
SUB f,WREG WREG = f – WREG 1 1 C,DC,N,OV,Z
SUB #lit10,Wn Wn = Wn – lit10 1 1 C,DC,N,OV,Z
SUB Wb,Ws,Wd Wd = Wb – Ws 1 1 C,DC,N,OV,Z
SUB Wb,#lit5,Wd Wd = Wb – lit5 1 1 C,DC,N,OV,Z
73 SUBB SUBB f f = f – WREG – (C) 1 1 C,DC,N,OV,Z
SUBB f,WREG WREG = f – WREG – (C) 1 1 C,DC,N,OV,Z
SUBB #lit10,Wn Wn = Wn – lit10 – (C) 1 1 C,DC,N,OV,Z
SUBB Wb,Ws,Wd Wd = Wb – Ws – (C) 1 1 C,DC,N,OV,Z
SUBB Wb,#lit5,Wd Wd = Wb – lit5 – (C) 1 1 C,DC,N,OV,Z
74 SUBR SUBR f f = WREG – f 1 1 C,DC,N,OV,Z
SUBR f,WREG WREG = WREG – f 1 1 C,DC,N,OV,Z
SUBR Wb,Ws,Wd Wd = Ws – Wb 1 1 C,DC,N,OV,Z
SUBR Wb,#lit5,Wd Wd = lit5 – Wb 1 1 C,DC,N,OV,Z
75 SUBBR SUBBR f f = WREG – f – (C) 1 1 C,DC,N,OV,Z
SUBBR f,WREG WREG = WREG – f – (C) 1 1 C,DC,N,OV,Z
SUBBR Wb,Ws,Wd Wd = Ws – Wb – (C) 1 1 C,DC,N,OV,Z
SUBBR Wb,#lit5,Wd Wd = lit5 – Wb – (C) 1 1 C,DC,N,OV,Z
76 SWAP SWAP.b Wn Wn = nibble swap Wn 1 1 None
SWAP Wn Wn = byte swap Wn 1 1 None
77 TBLRDH TBLRDH Ws,Wd Read Prog<23:16> to Wd<7:0> 1 2 None
78 TBLRDL TBLRDL Ws,Wd Read Prog<15:0> to Wd 1 2 None
79 TBLWTH TBLWTH Ws,Wd Write Ws<7:0> to Prog<23:16> 1 2 None
80 TBLWTL TBLWTL Ws,Wd Write Ws to Prog<15:0> 1 2 None
81 ULNK ULNK Unlink Frame Pointer 1 1 None
82 XOR XOR f f = f .XOR. WREG 1 1 N,Z
XOR f,WREG WREG = f .XOR. WREG 1 1 N,Z
XOR #lit10,Wn Wd = lit10 .XOR. Wd 1 1 N,Z
XOR Wb,Ws,Wd Wd = Wb .XOR. Ws 1 1 N,Z
XOR Wb,#lit5,Wd Wd = Wb .XOR. lit5 1 1 N,Z
83 ZE ZE Ws,Wnd Wnd = Zero-extend Ws 1 1 C,Z,N
TABLE 28-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
© 2007-2012 Microchip Technology Inc. DS70292G-page 333
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
29.0 DEVELOPMENT SUPPORT
The PIC® microcontrollers and dsPIC® digital signal
controllers are supported with a full range of software
and hardware development tools:
• Integrated Development Environment
- MPLAB® IDE Software
• Compilers/Assemblers/Linkers
- MPLAB C Compiler for Various Device
Families
- HI-TECH C for Various Device Families
- MPASMTM Assembler
-MPLINK
TM Object Linker/
MPLIBTM Object Librarian
- MPLAB Assembler/Linker/Librarian for
Various Device Families
• Simulators
- MPLAB SIM Software Simulator
• Emulators
- MPLAB REAL ICE™ In-Circuit Emulator
• In-Circuit Debuggers
- MPLAB ICD 3
- PICkit™ 3 Debug Express
• Device Programmers
- PICkit™ 2 Programmer
- MPLAB PM3 Device Programmer
• Low-Cost Demonstration/Development Boards,
Evaluation Kits, and Starter Kits
29.1 MPLAB Integrated Development
Environment Software
The MPLAB IDE software brings an ease of software
development previously unseen in the 8/16/32-bit
microcontroller market. The MPLAB IDE is a Windows®
operating system-based application that contains:
• A single graphical interface to all debugging tools
- Simulator
- Programmer (sold separately)
- In-Circuit Emulator (sold separately)
- In-Circuit Debugger (sold separately)
• A full-featured editor with color-coded context
• A multiple project manager
• Customizable data windows with direct edit of
contents
• High-level source code debugging
• Mouse over variable inspection
• Drag and drop variables from source to watch
windows
• Extensive on-line help
• Integration of select third party tools, such as
IAR C Compilers
The MPLAB IDE allows you to:
• Edit your source files (either C or assembly)
• One-touch compile or assemble, and download to
emulator and simulator tools (automatically
updates all project information)
• Debug using:
- Source files (C or assembly)
- Mixed C and assembly
- Machine code
MPLAB IDE supports multiple debugging tools in a
single development paradigm, from the cost-effective
simulators, through low-cost in-circuit debuggers, to
full-featured emulators. This eliminates the learning
curve when upgrading to tools with increased flexibility
and power.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 334 © 2007-2012 Microchip Technology Inc.
29.2 MPLAB C Compilers for Various
Device Families
The MPLAB C Compiler code development systems
are complete ANSI C compilers for Microchip’s PIC18,
PIC24 and PIC32 families of microcontrollers and the
dsPIC30 and dsPIC33 families of digital signal control-
lers. These compilers provide powerful integration
capabilities, superior code optimization and ease of
use.
For easy source level debugging, the compilers provide
symbol information that is optimized to the MPLAB IDE
debugger.
29.3 HI-TECH C for Various Device
Families
The HI-TECH C Compiler code development systems
are complete ANSI C compilers for Microchip’s PIC
family of microcontrollers and the dsPIC family of digital
signal controllers. These compilers provide powerful
integration capabilities, omniscient code generation
and ease of use.
For easy source level debugging, the compilers provide
symbol information that is optimized to the MPLAB IDE
debugger.
The compilers include a macro assembler, linker, pre-
processor, and one-step driver, and can run on multiple
platforms.
29.4 MPASM Assembler
The MPASM Assembler is a full-featured, universal
macro assembler for PIC10/12/16/18 MCUs.
The MPASM Assembler generates relocatable object
files for the MPLINK Object Linker, Intel® standard HEX
files, MAP files to detail memory usage and symbol
reference, absolute LST files that contain source lines
and generated machine code and COFF files for
debugging.
The MPASM Assembler features include:
• Integration into MPLAB IDE projects
• User-defined macros to streamline
assembly code
• Conditional assembly for multi-purpose
source files
• Directives that allow complete control over the
assembly process
29.5 MPLINK Object Linker/
MPLIB Object Librarian
The MPLINK Object Linker combines relocatable
objects created by the MPASM Assembler and the
MPLAB C18 C Compiler. It can link relocatable objects
from precompiled libraries, using directives from a
linker script.
The MPLIB Object Librarian manages the creation and
modification of library files of precompiled code. When
a routine from a library is called from a source file, only
the modules that contain that routine will be linked in
with the application. This allows large libraries to be
used efficiently in many different applications.
The object linker/library features include:
• Efficient linking of single libraries instead of many
smaller files
• Enhanced code maintainability by grouping
related modules together
• Flexible creation of libraries with easy module
listing, replacement, deletion and extraction
29.6 MPLAB Assembler, Linker and
Librarian for Various Device
Families
MPLAB Assembler produces relocatable machine
code from symbolic assembly language for PIC24,
PIC32 and dsPIC devices. MPLAB C Compiler uses
the assembler to produce its object file. The assembler
generates relocatable object files that can then be
archived or linked with other relocatable object files and
archives to create an executable file. Notable features
of the assembler include:
• Support for the entire device instruction set
• Support for fixed-point and floating-point data
• Command line interface
• Rich directive set
• Flexible macro language
• MPLAB IDE compatibility
© 2007-2012 Microchip Technology Inc. DS70292G-page 335
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
29.7 MPLAB SIM Software Simulator
The MPLAB SIM Software Simulator allows code
development in a PC-hosted environment by simulat-
ing the PIC MCUs and dsPIC® DSCs on an instruction
level. On any given instruction, the data areas can be
examined or modified and stimuli can be applied from
a comprehensive stimulus controller. Registers can be
logged to files for further run-time analysis. The trace
buffer and logic analyzer display extend the power of
the simulator to record and track program execution,
actions on I/O, most peripherals and internal registers.
The MPLAB SIM Software Simulator fully supports
symbolic debugging using the MPLAB C Compilers,
and the MPASM and MPLAB Assemblers. The soft-
ware simulator offers the flexibility to develop and
debug code outside of the hardware laboratory envi-
ronment, making it an excellent, economical software
development tool.
29.8 MPLAB REAL ICE In-Circuit
Emulator System
MPLAB REAL ICE In-Circuit Emulator System is
Microchip’s next generation high-speed emulator for
Microchip Flash DSC and MCU devices. It debugs and
programs PIC® Flash MCUs and dsPIC® Flash DSCs
with the easy-to-use, powerful graphical user interface of
the MPLAB Integrated Development Environment (IDE),
included with each kit.
The emulator is connected to the design engineer’s PC
using a high-speed USB 2.0 interface and is connected
to the target with either a connector compatible with in-
circuit debugger systems (RJ11) or with the new high-
speed, noise tolerant, Low-Voltage Differential Signal
(LVDS) interconnection (CAT5).
The emulator is field upgradable through future firmware
downloads in MPLAB IDE. In upcoming releases of
MPLAB IDE, new devices will be supported, and new
features will be added. MPLAB REAL ICE offers
significant advantages over competitive emulators
including low-cost, full-speed emulation, run-time
variable watches, trace analysis, complex breakpoints, a
ruggedized probe interface and long (up to three meters)
interconnection cables.
29.9 MPLAB ICD 3 In-Circuit Debugger
System
MPLAB ICD 3 In-Circuit Debugger System is Micro-
chip's most cost effective high-speed hardware
debugger/programmer for Microchip Flash Digital Sig-
nal Controller (DSC) and microcontroller (MCU)
devices. It debugs and programs PIC® Flash microcon-
trollers and dsPIC® DSCs with the powerful, yet easy-
to-use graphical user interface of MPLAB Integrated
Development Environment (IDE).
The MPLAB ICD 3 In-Circuit Debugger probe is con-
nected to the design engineer's PC using a high-speed
USB 2.0 interface and is connected to the target with a
connector compatible with the MPLAB ICD 2 or MPLAB
REAL ICE systems (RJ-11). MPLAB ICD 3 supports all
MPLAB ICD 2 headers.
29.10 PICkit 3 In-Circuit Debugger/
Programmer and
PICkit 3 Debug Express
The MPLAB PICkit 3 allows debugging and
programming of PIC® and dsPIC® Flash
microcontrollers at a most affordable price point using
the powerful graphical user interface of the MPLAB
Integrated Development Environment (IDE). The
MPLAB PICkit 3 is connected to the design engineer's
PC using a full speed USB interface and can be
connected to the target via an Microchip debug (RJ-11)
connector (compatible with MPLAB ICD 3 and MPLAB
REAL ICE). The connector uses two device I/O pins
and the reset line to implement in-circuit debugging and
In-Circuit Serial Programming™ (ICSP)™.
The PICkit 3 Debug Express include the PICkit 3, demo
board and microcontroller, hookup cables and CDROM
with user’s guide, lessons, tutorial, compiler and
MPLAB IDE software.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 336 © 2007-2012 Microchip Technology Inc.
29.11 PICkit 2 Development
Programmer/Debugger and
PICkit 2 Debug Express
The PICkit™ 2 Development Programmer/Debugger is
a low-cost development tool with an easy to use
interface for programming and debugging Microchip’s
Flash families of microcontrollers. The full featured
Windows® programming interface supports baseline
(PIC10F, PIC12F5xx, PIC16F5xx), midrange
(PIC12F6xx, PIC16F), PIC18F, PIC24, dsPIC30,
dsPIC33, and PIC32 families of 8-bit, 16-bit, and 32-bit
microcontrollers, and many Microchip Serial EEPROM
products. With Microchip’s powerful MPLAB Integrated
Development Environment (IDE) the PICkit™ 2
enables in-circuit debugging on most PIC®
microcontrollers. In-Circuit-Debugging runs, halts and
single steps the program while the PIC microcontroller
is embedded in the application. When halted at a
breakpoint, the file registers can be examined and
modified.
The PICkit 2 Debug Express include the PICkit 2, demo
board and microcontroller, hookup cables and CDROM
with user’s guide, lessons, tutorial, compiler and
MPLAB IDE software.
29.12 MPLAB PM3 Device Programmer
The MPLAB PM3 Device Programmer is a universal,
CE compliant device programmer with programmable
voltage verification at VDDMIN and VDDMAX for
maximum reliability. It features a large LCD display
(128 x 64) for menus and error messages and a modu-
lar, detachable socket assembly to support various
package types. The ICSP™ cable assembly is included
as a standard item. In Stand-Alone mode, the MPLAB
PM3 Device Programmer can read, verify and program
PIC devices without a PC connection. It can also set
code protection in this mode. The MPLAB PM3
connects to the host PC via an RS-232 or USB cable.
The MPLAB PM3 has high-speed communications and
optimized algorithms for quick programming of large
memory devices and incorporates an MMC card for file
storage and data applications.
29.13 Demonstration/Development
Boards, Evaluation Kits, and
Starter Kits
A wide variety of demonstration, development and
evaluation boards for various PIC MCUs and dsPIC
DSCs allows quick application development on fully func-
tional systems. Most boards include prototyping areas for
adding custom circuitry and provide application firmware
and source code for examination and modification.
The boards support a variety of features, including LEDs,
temperature sensors, switches, speakers, RS-232
interfaces, LCD displays, potentiometers and additional
EEPROM memory.
The demonstration and development boards can be
used in teaching environments, for prototyping custom
circuits and for learning about various microcontroller
applications.
In addition to the PICDEM™ and dsPICDEM™ demon-
stration/development board series of circuits, Microchip
has a line of evaluation kits and demonstration software
for analog filter design, KEELOQ® security ICs, CAN,
IrDA®, PowerSmart battery management, SEEVAL®
evaluation system, Sigma-Delta ADC, flow rate
sensing, plus many more.
Also available are starter kits that contain everything
needed to experience the specified device. This usually
includes a single application and debug capability, all
on one board.
Check the Microchip web page (www.microchip.com)
for the complete list of demonstration, development
and evaluation kits.
© 2007-2012 Microchip Technology Inc. DS70292G-page 337
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
30.0 ELECTRICAL CHARACTERISTICS
This section provides an overview of dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 electrical characteristics. Additional information is provided in future revisions of this document as it becomes
available.
Absolute maximum ratings for the dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/X04
family are listed below. Exposure to these maximum rating conditions for extended periods can affect device reliability.
Functional operation of the device at these or any other conditions above the parameters indicated in the operation
listings of this specification is not implied.
Absolute Maximum Ratings(1)
Ambient temperature under bias.............................................................................................................-40°C to +125°C
Storage temperature .............................................................................................................................. -65°C to +160°C
Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V
Voltage on any pin that is not 5V tolerant with respect to VSS(4) .................................................... -0.3V to (VDD + 0.3V)
Voltage on any 5V tolerant pin with respect to VSS when VDD ≥ 3.0V(4) .................................................. -0.3V to +5.6V
Voltage on any 5V tolerant pin with respect to Vss when VDD < 3.0V(4)...................................................... -0.3V to 3.6V
Maximum current out of VSS pin ...........................................................................................................................300 mA
Maximum current into VDD pin(2)...........................................................................................................................250 mA
Maximum current sourced/sunk by any 2x I/O pin(3) ................................................................................................8 mA
Maximum current sourced/sunk by any 4x I/O pin(3) ..............................................................................................15 mA
Maximum current sourced/sunk by any 8x I/O pin(3) ..............................................................................................25 mA
Maximum current sunk by all ports .......................................................................................................................200 mA
Maximum current sourced by all ports(2)...............................................................................................................200 mA
Note 1: Stresses above those listed under “Absolute Maximum Ratings” can cause permanent damage to the
device. This is a stress rating only, and functional operation of the device at those or any other conditions
above those indicated in the operation listings of this specification is not implied. Exposure to maximum
rating conditions for extended periods can affect device reliability.
2: Maximum allowable current is a function of device maximum power dissipation (see Table 30-2).
3: Exceptions are CLKOUT, which is able to sink/source 25 mA, and the VREF+, VREF-, SCLx, SDAx, PGECx
and PGEDx pins, which are able to sink/source 12 mA.
4: See the “Pin Diagrams” section for 5V tolerant pins.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 338 © 2007-2012 Microchip Technology Inc.
30.1 DC Characteristics
TABLE 30-1: OPERATING MIPS VS. VOLTAGE
Characteristic VDD Range
(in Volts)
Temp Range
(in °C)
Max MIPS
dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04
—3.0-3.6V(1) -40°C to +85°C 40
—3.0-3.6V(1) -40°C to +125°C 40
Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded
performance. Device functionality is tested but not characterized. Refer to parameter BO10 in Table 30-11
for the minimum and maximum BOR values.
TABLE 30-2: THERMAL OPERATING CONDITIONS
Rating Symbol Min Typ Max Unit
Industrial Temperature Devices
Operating Junction Temperature Range TJ-40 — +125 °C
Operating Ambient Temperature Range TA-40 — +85 °C
Extended Temperature Devices
Operating Junction Temperature Range TJ-40 — +155 °C
Operating Ambient Temperature Range TA-40 — +125 °C
Power Dissipation:
Internal chip power dissipation:
PINT = VDD x (IDD – Σ IOH) PDPINT + PI/OW
I/O Pin Power Dissipation:
I/O = Σ ({VDD – VOH} x IOH) + Σ (VOL x IOL)
Maximum Allowed Power Dissipation PDMAX (TJ – TA)/θJA W
TABLE 30-3: THERMAL PACKAGING CHARACTERISTICS
Characteristic Symbol Typ Max Unit Note
Package Thermal Resistance, 44-pin QFN θJA 30 — °C/W 1
Package Thermal Resistance, 44-pin TFQP θJA 40 — °C/W 1
Package Thermal Resistance, 28-pin SPDIP θJA 45 — °C/W 1
Package Thermal Resistance, 28-pin SOIC θJA 50 — °C/W 1
Package Thermal Resistance, 28-pin QFN-S θJA 30 — °C/W 1
Note 1: Junction to ambient thermal resistance, Theta-JA (θJA) numbers are achieved by package simulations.
© 2007-2012 Microchip Technology Inc. DS70292G-page 339
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-4: DC TEMPERATURE AND VOLTAGE SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Operating Voltage
DC10 Supply Voltage
VDD — 3.0 — 3.6 V Industrial and Extended
DC12 VDR RAM Data Retention Voltage(2) 1.8 — — V —
DC16 VPOR VDD Start Voltage
to ensure internal
Power-on Reset signal
——VSS V—
DC17 SVDD VDD Rise Rate
to ensure internal
Power-on Reset signal
0.03 — — V/ms 0-3.0V in 0.1s
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: This is the limit to which VDD can be lowered without losing RAM data.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 340 © 2007-2012 Microchip Technology Inc.
TABLE 30-5: DC CHARACTERISTICS: OPERATING CURRENT (IDD)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Parameter
No.(3) Typical(2) Max Units Conditions
Operating Current (IDD)(1)
DC20d 18 21 mA -40°C
3.3V 10 MIPS
DC20a 18 22 mA +25°C
DC20b 18 22 mA +85°C
DC20c 18 25 mA +125°C
DC21d 30 35 mA -40°C
3.3V 16 MIPS
DC21a 30 34 mA +25°C
DC21b 30 34 mA +85°C
DC21c 30 36 mA +125°C
DC22d 34 42 mA -40°C
3.3V 20 MIPS
DC22a 34 41 mA +25°C
DC22b 34 42 mA +85°C
DC22c 35 44 mA +125°C
DC23d 49 58 mA -40°C
3.3V 30 MIPS
DC23a 49 57 mA +25°C
DC23b 49 57 mA +85°C
DC23c 49 60 mA +125°C
DC24d 63 75 mA -40°C
3.3V 40 MIPS
DC24a 63 74 mA +25°C
DC24b 63 74 mA +85°C
DC24c 63 76 mA +125°C
Note 1: IDD is primarily a function of the operating voltage and frequency. Other factors, such as I/O pin loading
and switching rate, oscillator type, internal code execution pattern and temperature, also have an impact
on the current consumption. The test conditions for all IDD measurements are as follows:
• Oscillator is configured in EC mode, no PLL until 10 MIPS, OSC1 is driven with external square wave
from rail-to-rail (EC clock overshoot/undershoot < 250 mV required)
• CLKO is configured as an I/O input pin in the Configuration word
• All I/O pins are configured as inputs and pulled to VSS
•MCLR = VDD, WDT and FSCM are disabled
• CPU, SRAM, program memory and data memory are operational
• No peripheral modules are operating; however, every peripheral is being clocked (defined PMDx bits
are set to zero)
• CPU executing while(1) statement
• JTAG is disabled
2: Data in “Typ” column is at 3.3V, +25ºC unless otherwise stated.
3: These parameters are characterized but not tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 341
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-6: DC CHARACTERISTICS: IDLE CURRENT (IIDLE)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Parameter
No.(3) Typical(2) Max Units Conditions
Idle Current (IIDLE): Core OFF Clock ON Base Current(1)
DC40d 8 10 mA -40°C
3.3V 10 MIPS
DC40a 8 10 mA +25°C
DC40b 9 10 mA +85°C
DC40c 10 13 mA +125°C
DC41d 13 15 mA -40°C
3.3V 16 MIPS
DC41a 13 mA +25°C15
DC41b 13 16 mA +85°C
DC41c 13 19 mA +125°C
DC42d 15 18 mA -40°C
3.3V 20 MIPS
DC42a 16 18 mA +25°C
DC42b 16 19 mA +85°C
DC42c 17 22 mA +125°C
DC43a 23 27 mA +25°C
3.3V 30 MIPS
23 26DC43d mA -40°C
DC43b 24 28 mA +85°C
DC43c 25 31 mA +125°C
DC44d 31 42 mA -40°C
3.3V 40 MIPS
DC44a 31 36 mA +25°C
DC44b 32 39 mA +85°C
DC44c 34 43 mA +125°C
Note 1: Base IIDLE current is measured as follows:
• CPU core is off (i.e., Idle mode), oscillator is configured in EC mode and external clock active, OSC1
is driven with external square wave from rail-to-rail (EC clock overshoot/undershoot < 250 mV
required)
• CLKO is configured as an I/O input pin in the Configuration word
• External Secondary Oscillator disabled (i.e., SOSCO and SOSCI pins configured as digital I/O inputs)
• All I/O pins are configured as inputs and pulled to VSS
•MCLR = VDD, WDT and FSCM are disabled
• No peripheral modules are operating; however, every peripheral is being clocked (defined PMDx bits
are set to zero)
• JTAG is disabled
2: Data in “Typ” column is at 3.3V, +25ºC unless otherwise stated.
3: These parameters are characterized but not tested in manufacturing.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 342 © 2007-2012 Microchip Technology Inc.
TABLE 30-7: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Parameter
No.(3) Typical(2) Max Units Conditions
Power-Down Current (IPD)(1)
DC60d 24 68 μA -40°C
3.3V Base Power-Down Current(3,4)
DC60a 28 87 μA+25°C
DC60b 124 292 μA+85°C
DC60c 350 1000 μA +125°C
DC61d 8 13 μA -40°C
3.3V Watchdog Timer Current: ΔIWDT(3,5)
DC61a 10 15 μA+25°C
DC61b 12 20 μA+85°C
DC61c 13 25 μA +125°C
Note 1: IPD (Sleep) current is measured as follows:
• CPU core is off (i.e., Sleep mode), oscillator is configured in EC mode and external clock active,
OSC1 is driven with external square wave from rail-to-rail (EC clock overshoot/undershoot < 250 mV
required)
• CLKO is configured as an I/O input pin in the Configuration word
• All I/O pins are configured as inputs and pulled to VSS
•MCLR = VDD, WDT and FSCM are disabled, all peripheral modules are disabled (PMDx bits are all
‘1’s)
• RTCC is disabled
• JTAG is disabled
2: Data in the “Typ” column is at 3.3V, +25ºC unless otherwise stated.
3: The Watchdog Timer Current is the additional current consumed when the WDT module is enabled. This
current should be added to the base IPD current.
4: These currents are measured on the device containing the most memory in this family.
5: These parameters are characterized, but are not tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 343
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-8: DC CHARACTERISTICS: DOZE CURRENT (IDOZE)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Parameter No. Typical(1) Max Doze
Ratio Units Conditions
DC73a 20 50 1:2 mA
-40°C 3.3V 40 MIPSDC73f 17 30 1:64 mA
DC73g 17 30 1:128 mA
DC70a 20 50 1:2 mA
+25°C 3.3V 40 MIPSDC70f 17 30 1:64 mA
DC70g 17 30 1:128 mA
DC71a 20 50 1:2 mA
+85°C 3.3V 40 MIPSDC71f 17 30 1:64 mA
DC71g 17 30 1:128 mA
DC72a 21 50 1:2 mA
+125°C 3.3V 40 MIPSDC72f 18 30 1:64 mA
DC72g 18 30 1:128 mA
Note 1: Data in the Typical column is at 3.3V, 25°C unless otherwise stated.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 344 © 2007-2012 Microchip Technology Inc.
TABLE 30-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
VIL Input Low Voltage
DI10 I/O pins VSS —0.2VDD V
DI11 PMP pins VSS —0.15VDD VPMPTTL = 1
DI15 MCLR VSS —0.2 VDD V
DI16 I/O Pins with OSC1 or SOSCI VSS —0.2VDD V
DI18 I/O Pins with SDAx, SCLx VSS — 0.3 VDD V SMBus disabled
DI19 I/O Pins with SDAx, SCLx VSS — 0.8 VDD V SMBus enabled
VIH Input High Voltage
DI20
DI21
I/O Pins Not 5V Tolerant(4)
I/O Pins 5V Tolerant(4)
I/O Pins Not 5V Tolerant with
PMP(4)
I/O Pins 5V Tolerant with
PMP(4)
0.7 VDD
0.7 VDD
0.24 VDD + 0.8
0.24 VDD + 0.8
—
—
—
—
VDD
5.5
VDD
5.5
V
V
V
V
DI28 SDAx, SCLx 0.7 VDD — 5.5 V SMBus disabled
DI29 SDAx, SCLx 2.1 — 5.5 V SMBus enabled
ICNPU CNx Pull-up Current
DI30 50 250 400 μAV
DD = 3.3V, VPIN = VSS
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified
levels represent normal operating conditions. Higher leakage current can be measured at different input
voltages.
3: Negative current is defined as current sourced by the pin.
4: See the “Pin Diagrams” section for the 5V tolerant I/O pins.
5: VIL source < (VSS – 0.3). Characterized but not tested.
6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not
tested.
7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.
8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted pro-
vided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not
exceed the specified limit. Characterized but not tested.
© 2007-2012 Microchip Technology Inc. DS70292G-page 345
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
IIL Input Leakage Current(2,3)
DI50 I/O pins 5V Tolerant(4) ——±2μAVSS ≤ VPIN ≤ VDD,
Pin at high-impedance
DI51 I/O Pins Not 5V Tolerant(4)
(Excluding AN9 through
AN12)
——±1μAVSS ≤ VPIN ≤ VDD,
Pin at high-impedance,
40°C ≤ TA ≤+85°C
DI51a I/O Pins Not 5V Tolerant(4) ——±2μA Shared with external
reference pins,
40°C ≤ TA ≤ +85°C
DI51b I/O Pins Not 5V Tolerant(4)
(Excluding AN9 through
AN12)
——±3.5μAV
SS ≤ VPIN ≤ VDD, Pin at
high-impedance,
-40°C ≤TA ≤+125°C
DI51c I/O Pins Not 5V Tolerant(4) ——±8μA Analog pins shared with
external reference pins,
-40°C ≤TA ≤+125°C
DI51d AN9 through AN12 — — ±11 μAV
SS ≤ VPIN ≤ VDD, Pin at
high-impedance,
-40°C ≤TA ≤+85°C
DI51e AN9 through AN12 — — ±13 μAV
SS ≤ VPIN ≤ VDD, Pin at
high-impedance,
-40°C ≤TA ≤+125°C
DI55 MCLR ——±2 μAVSS ≤ VPIN ≤ VDD
DI56 OSC1 — — ±2 μAVSS ≤ VPIN ≤ VDD,
XT and HS modes
TABLE 30-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS (CONTINUED)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified
levels represent normal operating conditions. Higher leakage current can be measured at different input
voltages.
3: Negative current is defined as current sourced by the pin.
4: See the “Pin Diagrams” section for the 5V tolerant I/O pins.
5: VIL source < (VSS – 0.3). Characterized but not tested.
6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not
tested.
7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.
8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted pro-
vided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not
exceed the specified limit. Characterized but not tested.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 346 © 2007-2012 Microchip Technology Inc.
IICL Input Low Injection Current
DI60a 0 — -5(5,8) mA All pins except VDD, VSS,
AVDD, AVSS, MCLR,
VCAP, SOSCI, SOSCO,
and RB14
IICH Input High Injection Current
DI60b 0 — +5(6,7,8) mA All pins except VDD, VSS,
AVDD, AVSS, MCLR,
VCAP, SOSCI, SOSCO,
RB14, and digital 5V-tol-
erant designated pins
∑IICT Total Input Injection Current
DI60c (sum of all I/O and control
pins)
-20(9) —+20
(9) mA Absolute instantaneous
sum of all ± input
injection currents from all
I/O pins
(| I
ICL + | IICH |) ≤ ∑IICT
TABLE 30-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS (CONTINUED)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified
levels represent normal operating conditions. Higher leakage current can be measured at different input
voltages.
3: Negative current is defined as current sourced by the pin.
4: See the “Pin Diagrams” section for the 5V tolerant I/O pins.
5: VIL source < (VSS – 0.3). Characterized but not tested.
6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not
tested.
7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.
8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted pro-
vided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not
exceed the specified limit. Characterized but not tested.
© 2007-2012 Microchip Technology Inc. DS70292G-page 347
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-10: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ TA ≤ +125°C for Extended
Param. Symbol Characteristic Min. Typ. Max. Units Conditions
DO10 VOL
Output Low Voltage
I/O Pins:
2x Sink Driver Pins - RA2, RA7-
RA10, RB10, RB11, RB7, RB4,
RC3-RC9
——0.4V IOL ≤ 3 mA, VDD = 3.3V
See Note 1
Output Low Voltage
I/O Pins:
4x Sink Driver Pins - RA0, RA1,
RB0-RB3, RB5, RB6, RB8, RB9,
RB12-RB15, RC0-RC2
——0.4V IOL ≤ 6 mA, VDD = 3.3V
See Note 1
Output Low Voltage
I/O Pins:
8x Sink Driver Pins - RA3, RA4
——0.4V IOL ≤ 10 mA, VDD = 3.3V
See Note 1
DO20 VOH
Output High Voltage
I/O Pins:
2x Source Driver Pins - RA2,
RA7-RA10, RB4, RB7, RB10,
RB11, RC3-RC9
2.4 — — V IOH ≥-3 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
4x Source Driver Pins - RA0,
RA1, RB0-RB3, RB5, RB6, RB8,
RB9, RB12-RB15, RC0-RC2
2.4 — — V IOH ≥-6 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
8x Source Driver Pins - RA4,
RA3
2.4 — — V IOH ≥-10 mA, VDD = 3.3V
See Note 1
DO20A VOH1
Output High Voltage
I/O Pins:
2x Source Driver Pins - RA2,
RA7-RA10, RB4, RB7, RB10,
RB11, RC3-RC9
1.5 — —
V
IOH ≥-6 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-5 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-2 mA, VDD = 3.3V
See Note 1
Output High Voltage
4x Source Driver Pins - RA0,
RA1, RB0-RB3, RB5, RB6, RB8,
RB9, RB12-RB15, RC0-RC2
1.5 — —
V
IOH ≥-12 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-11 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-3 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
8x Source Driver Pins - RA3,
RA4
1.5 — —
V
IOH ≥-16 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-12 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-4 mA, VDD = 3.3V
See Note 1
Note 1: Parameters are characterized, but not tested.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 348 © 2007-2012 Microchip Technology Inc.
TABLE 30-13: INTERNAL VOLTAGE REGULATOR SPECIFICATIONS
TABLE 30-11: ELECTRICAL CHARACTERISTICS: BOR
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min(1) Typ Max(1) Units Conditions
BO10 VBOR BOR Event on VDD transition high-to-low 2.40 — 2.55 V VDD
Note 1: Parameters are for design guidance only and are not tested in manufacturing.
TABLE 30-12: DC CHARACTERISTICS: PROGRAM MEMORY
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Program Flash Memory
D130a EPCell Endurance 10,000 — — E/W -40°C to +125°C
D131 VPR VDD for Read VMIN —3.6VVMIN = Minimum operating
voltage
D132B VPEW VDD for Self-Timed Write VMIN —3.6VVMIN = Minimum operating
voltage
D134 TRETD Characteristic Retention 20 — — Year Provided no other specifications
are violated
D135 IDDP Supply Current during
Programming
—10 —mA
D136a TRW Row Write Time 1.32 — 1.74 ms TRW = 11064 FRC cycles,
T
A = +85°C, See Note 2
D136b TRW Row Write Time 1.28 — 1.79 ms TRW = 11064 FRC cycles,
TA = +125°C, See Note 2
D137a TPE Page Erase Time 20.1 — 26.5 ms TPE = 168517 FRC cycles,
TA = +85°C, See Note 2
D137b TPE Page Erase Time 19.5 — 27.3 ms TPE = 168517 FRC cycles,
T
A = +125°C, See Note 2
D138a TWW Word Write Cycle Time 42.3 — 55.9 µs TWW = 355 FRC cycles,
TA = +85°C, See Note 2
D138b TWW Word Write Cycle Time 41.1 — 57.6 µs TWW = 355 FRC cycles,
TA = +125°C, See Note 2
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: Other conditions: FRC = 7.37 MHz, TUN<5:0> = b'011111 (for Min), TUN<5:0> = b'100000 (for Max).
This parameter depends on the FRC accuracy (see Table 30-19) and the value of the FRC Oscillator
Tuning register (see Register 9-4). For complete details on calculating the Minimum and Maximum time
see Section 5.3 “Programming Operations”.
Standard Operating Conditions (unless otherwise stated):
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤T
A ≤+125°C for Extended
Param
No. Symbol Characteristics Min Typ Max Units Comments
—CEFC External Filter Capacitor
Value(1)
4.7 10 — μF Capacitor must be low series
resistance (< 5 Ohms)
Note 1: Typical VCAP voltage = 2.5V when VDD ≥ VDDMIN.
© 2007-2012 Microchip Technology Inc. DS70292G-page 349
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
30.2 AC Characteristics and Timing
Parameters
This section defines dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 AC characteristics and timing parameters.
TABLE 30-14: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC
FIGURE 30-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
TABLE 30-15: CAPACITIVE LOADING REQUIREMENTS ON OUTPUT PINS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Operating voltage VDD range as described in Ta bl e 30 -1 .
Param
No. Symbol Characteristic Min Typ Max Units Conditions
DO50 COSCO OSC2/SOSCO pin — — 15 pF In XT and HS modes when
external clock is used to drive
OSC1
DO56 CIO All I/O pins and OSC2 — — 50 pF EC mode
DO58 CBSCLx, SDAx — — 400 pF In I2C™ mode
VDD/2
CL
RL
Pin
Pin
VSS
VSS
CL
RL=464Ω
CL= 50 pF for all pins except OSC2
15 pF for OSC2 output
Load Condition 1 – for all pins except OSC2 Load Condition 2 – for OSC2
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 350 © 2007-2012 Microchip Technology Inc.
FIGURE 30-2: EXTERNAL CLOCK TIMING
Q1 Q2 Q3 Q4
OSC1
CLKO
Q1 Q2 Q3 Q4
OS20
OS25
OS30 OS30
OS40
OS41
OS31 OS31
TABLE 30-16: EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
OS10 FIN External CLKI Frequency
(External clocks allowed only
in EC and ECPLL modes)
DC — 40 MHz EC
Oscillator Crystal Frequency 3.5
10
—
3.5
—
—
—
—
10
40
33
10
MHz
MHz
kHz
MHz
XT
HS
SOSC
AUX_OSC_FIN
OS20 TOSC TOSC = 1/FOSC 12.5 — DC ns —
OS25 TCY Instruction Cycle Time(2) 25 — DC ns —
OS30 TosL,
Tos H
External Clock in (OSC1)
High or Low Time
0.375 x TOSC — 0.625 x TOSC ns EC
OS31 TosR,
Tos F
External Clock in (OSC1)
Rise or Fall Time
——20nsEC
OS40 TckR CLKO Rise Time(3) —5.2—ns —
OS41 TckF CLKO Fall Time(3) —5.2—ns —
OS42 GMExternal Oscillator
Transconductance(4)
14 16 18 mA/V VDD = 3.3V
TA = +25ºC
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
2: Instruction cycle period (TCY) equals two times the input oscillator time-base period. All specified values
are based on characterization data for that particular oscillator type under standard operating conditions
with the device executing code. Exceeding these specified limits may result in an unstable oscillator
operation and/or higher than expected current consumption. All devices are tested to operate at “min.”
values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the
“max.” cycle time limit is “DC” (no clock) for all devices.
3: Measurements are taken in EC mode. The CLKO signal is measured on the OSC2 pin.
4: Data for this parameter is Preliminary. This parameter is characterized, but not tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 351
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-17: PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
OS50 FPLLI PLL Voltage Controlled
Oscillator (VCO) Input
Frequency Range
0.8 — 8 MHz ECPLL, HSPLL, XTPLL
modes
OS51 FSYS On-Chip VCO System
Frequency
100 — 200 MHz —
OS52 TLOCK PLL Start-up Time (Lock Time) 0.9 1.5 3.1 mS —
OS53 DCLK CLKO Stability (Jitter)(2) -3 0.5 3 % Measured over 100 ms
period
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
2: These parameters are characterized by similarity, but are not tested in manufacturing. This specification is
based on clock cycle by clock cycle measurements. To calculate the effective jitter for individual time bases
or communication clocks use this formula:
Peripheral Clock Jitter DCLK
FOSC
Peripheral Bit Rate Clock
--------------------------------------------------------------
⎝⎠
⎛⎞
------------------------------------------------------------------------=
For example: Fosc = 32 MHz, DCLK = 3%, SPI bit rate clock, (i.e., SCK) is 2 MHz.
SPI SCK Jitter DCLK
32 MHz
2 MHz
--------------------
⎝⎠
⎛⎞
------------------------------ 3%
16
----------3%
4
--------0.75%====
TABLE 30-18: AC CHARACTERISTICS: INTERNAL RC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Characteristic Min Typ Max Units Conditions
Internal FRC Accuracy @ 7.3728 MHz(1)
F20a FRC -2 — +2 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V
F20b FRC -5 — +5 % -40°C ≤ T
A ≤ +125°C VDD = 3.0-3.6V
Note 1: Frequency calibrated at 25°C and 3.3V. TUN bits can be used to compensate for temperature drift.
TABLE 30-19: INTERNAL RC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Characteristic Min Typ Max Units Conditions
LPRC @ 32.768 kHz(1)
F21a LPRC -20 ±6 +20 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V
F21b LPRC -30 — +30 % -40°C ≤ T
A ≤ +125°C VDD = 3.0-3.6V
Note 1: Change of LPRC frequency as VDD changes.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 352 © 2007-2012 Microchip Technology Inc.
FIGURE 30-3: CLKO AND I/O TIMING CHARACTERISTICS
TABLE 30-20: I/O TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
DO31 TIOR Port Output Rise Time — 10 25 ns —
DO32 TIOF Port Output Fall Time — 10 25 ns —
DI35 TINP INTx Pin High or Low Time (input) 20 — — ns —
DI40 TRBP CNx High or Low Time (input) 2 — — TCY —
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
Note: Refer to Figure 30-1 for load conditions.
I/O Pin
(Input)
I/O Pin
(Output)
DI35
Old Value New Value
DI40
DO31
DO32
© 2007-2012 Microchip Technology Inc. DS70292G-page 353
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING CHARACTERISTICS
VDD
MCLR
Internal
POR
PWRT
Time-out
OSC
Time-out
Internal
Reset
Watchdog
Timer
Reset
SY11
SY10
SY20
SY13
I/O Pins
SY13
Note: Refer to Figure 30-1 for load conditions.
FSCM
Delay
SY35
SY30
SY12
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 354 © 2007-2012 Microchip Technology Inc.
TABLE 30-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SY10 TMCLMCLR Pulse Width (low) 2 — — μs -40°C to +85°C
SY11 TPWRT Power-up Timer Period — 2
4
8
16
32
64
128
— ms -40°C to +85°C
User programmable
SY12 TPOR Power-on Reset Delay 3 10 30 μs -40°C to +85°C
SY13 TIOZ I/O High-Impedance
from MCLR Low or
Watchdog Timer Reset
0.68 0.72 1.2 μs—
SY20 TWDT1 Watchdog Timer
Time-out Period
————See Section 27.4 “Watchdog
Timer (WDT)” and LPRC
specification F21 (Table 30-19)
SY30 TOST Oscillator Start-up
Timer Period
—1024TOSC ——TOSC = OSC1 period
SY35 TFSCM Fail-Safe Clock
Monitor Delay
— 500 900 μs -40°C to +85°C
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
© 2007-2012 Microchip Technology Inc. DS70292G-page 355
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-5: TIMER1, 2, 3 AND 4 EXTERNAL CLOCK TIMING CHARACTERISTICS
TABLE 30-22: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS(1)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min Typ Max Units Conditions
TA10 TTXH TxCK High Time Synchronous,
no prescaler
TCY + 20 — — ns Must also meet
parameter TA15.
N = prescale
value
(1, 8, 64, 256)
Synchronous,
with prescaler
(TCY + 20)/N — — ns
Asynchronous 20 — — ns
TA11 TTXL TxCK Low Time Synchronous,
no prescaler
(TCY + 20) — — ns Must also meet
parameter TA15.
N = prescale
value
(1, 8, 64, 256)
Synchronous,
with prescaler
(TCY + 20)/N — — ns
Asynchronous 20 — — ns
TA15 TTXP TxCK Input
Period
Synchronous,
no prescaler
2 TCY + 40 — — ns —
Synchronous,
with prescaler
Greater of:
40 ns or
(2 TCY + 40)/
N
— — — N = prescale
value
(1, 8, 64, 256)
Asynchronous 40 — — ns —
OS60 Ft1 SOSCI/T1CK Oscillator Input
frequency Range (oscillator
enabled by setting bit TCS
(T1CON<1>))
DC — 50 kHz —
TA20 TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
0.75 TCY +
40
—1.75 TCY +
40
——
Note 1: Timer1 is a Type A.
Note: Refer to Figure 30-1 for load conditions.
Tx11
Tx15
Tx10
Tx20
TMRx
OS60
TxCK
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 356 © 2007-2012 Microchip Technology Inc.
TABLE 30-23: TIMER2 AND TIMER 4 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
TB10 TtxH TxCK High
Time
Synchronous
mode
Greater of:
20 or
(TCY + 20)/N
——ns
Must also meet
parameter TB15
N = prescale
value
(1, 8, 64, 256)
TB11 TtxL TxCK Low
Time
Synchronous
mode
Greater of:
20 or
(TCY + 20)/N
— — ns Must also meet
parameter TB15
N = prescale
value
(1, 8, 64, 256)
TB15 TtxP TxCK
Input
Period
Synchronous
mode
Greater of:
40 or
(2 TCY + 40)/N
— — ns N = prescale
value
(1, 8, 64, 256)
TB20 TCKEXTMRL Delay from External TxCK
Clock Edge to Timer Incre-
ment
0.75 TCY + 40 — 1.75 TCY + 40 ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
TABLE 30-24: TIMER3 AND TIMER5 EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
TC10 TtxH TxCK High
Time
Synchronous TCY + 20 — — ns Must also meet
parameter TC15
TC11 TtxL TxCK Low
Time
Synchronous TCY + 20 — — ns Must also meet
parameter TC15
TC15 TtxP TxCK Input
Period
Synchronous,
with prescaler
2 TCY + 40 — — ns N = prescale
value
(1, 8, 64, 256)
TC20 TCKEXTMRL Delay from External TxCK
Clock Edge to Timer Incre-
ment
0.75 TCY + 40 — 1.75 TCY + 40 ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 357
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-6: INPUT CAPTURE (CAPx) TIMING CHARACTERISTICS
FIGURE 30-7: OUTPUT COMPARE MODULE (OCx) TIMING CHARACTERISTICS
TABLE 30-25: INPUT CAPTURE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Max Units Conditions
IC10 TccL ICx Input Low Time No Prescaler 0.5 TCY + 20 — ns —
With Prescaler 10 — ns
IC11 TccH ICx Input High Time No Prescaler 0.5 TCY + 20 — ns —
With Prescaler 10 — ns
IC15 TccP ICx Input Period (TCY + 40)/N — ns N = prescale
value (1, 4, 16)
Note 1: These parameters are characterized but not tested in manufacturing.
TABLE 30-26: OUTPUT COMPARE MODULE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
OC10 TccF OCx Output Fall Time — — — ns See parameter D032
OC11 TccR OCx Output Rise Time — — — ns See parameter D031
Note 1: These parameters are characterized but not tested in manufacturing.
ICx
IC10 IC11
IC15
Note: Refer to Figure 30-1 for load conditions.
OCx
OC11 OC10
(Output Compare
Note: Refer to Figure 30-1 for load conditions.
or PWM Mode)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 358 © 2007-2012 Microchip Technology Inc.
FIGURE 30-8: OC/PWM MODULE TIMING CHARACTERISTICS
TABLE 30-27: SIMPLE OC/PWM MODE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
OC15 TFD Fault Input to PWM I/O
Change
——TCY + 20 ns —
OC20 TFLT Fault Input Pulse-Width TCY + 20 — — ns —
Note 1: These parameters are characterized but not tested in manufacturing.
OCFA
OCx
OC20
OC15
Active Tri-state
© 2007-2012 Microchip Technology Inc. DS70292G-page 359
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-28: SPIx MAXIMUM DATA/CLOCK RATE SUMMARY
FIGURE 30-9: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY CKE = 0) TIMING
CHARACTERISTICS
FIGURE 30-10: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY CKE = 1) TIMING
CHARACTERISTICS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Maximum
Data Rate
Master
Transmit Only
(Half-Duplex)
Master
Transmit/Receive
(Full-Duplex)
Slave
Transmit/Receive
(Full-Duplex)
CKE CKP SMP
15 MHz Table 30-29 ——0,10,10,1
9 MHz — Table 30-30 —10,11
9 MHz — Table 30-31 —00,11
15 MHz — — Table 30-32 100
11 MHz — — Table 30-33 110
15 MHz — — Table 30-34 010
11 MHz — — Table 30-35 000
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP10
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
SP30, SP31
SP30, SP31
Note: Refer to Figure 30-1 for load conditions.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP10
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
SP30, SP31
Note: Refer to Figure 30-1 for load conditions.
SP36
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 360 © 2007-2012 Microchip Technology Inc.
TABLE 30-29: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP10 TscP Maximum SCK Frequency — — 15 MHz See Note 3
SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32
and Note 4
SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns —
SP36 TdiV2scH,
TdiV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 66.7 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 361
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-11: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = X, SMP = 1) TIMING
CHARACTERISTICS
TABLE 30-30: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 1) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP10 TscP Maximum SCK Frequency — — 9 MHz See Note 3
SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32
and Note 4
SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
— 6 20 ns —
SP36 TdoV2sc,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data
Input to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 111 ns. The clock generated in Master mode must not violate this
specification.
4: Assumes 50 pF load on all SPIx pins.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP10
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
SP30, SP31
Note: Refer to Figure 30-1 for load conditions.
SP36
SP41
MSb In LSb In
Bit 14 - - - -1
SDIx
SP40
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 362 © 2007-2012 Microchip Technology Inc.
FIGURE 30-12: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = X, SMP = 1) TIMING
CHARACTERISTICS
TABLE 30-31: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 1) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP10 TscP Maximum SCK Frequency — — 9 MHz -40ºC to +125ºC and
see Note 3
SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32
and Note 4
SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
— 6 20 ns —
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data
Input to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 111 ns. The clock generated in Master mode must not violate this
specification.
4: Assumes 50 pF load on all SPIx pins.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDIx
SP10
SP40 SP41
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
MSb In LSb In
Bit 14 - - - -1
SP30, SP31
SP30, SP31
Note: Refer to Figure 30-1 for load conditions.
© 2007-2012 Microchip Technology Inc. DS70292G-page 363
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-13: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 0, SMP = 0) TIMING
CHARACTERISTICS
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDI
SP50
SP60
SDIx
SP30,SP31
MSb Bit 14 - - - - - -1 LSb
SP51
MSb In Bit 14 - - - -1 LSb In
SP35
SP52
SP73
SP72
SP72
SP73
SP70
SP40
SP41
Note: Refer to Figure 30-1 for load conditions.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 364 © 2007-2012 Microchip Technology Inc.
TABLE 30-32: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 0, SMP = 0) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscP Maximum SCK Input Frequency — — 15 MHz See Note 3
SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32
and Note 4
SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns —
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP50 TssL2scH,
TssL2scL
SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —
SP51 TssH2doZ SSx ↑ to SDOx Output
High-Impedance(4)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4
SP60 TssL2doV SDOx Data Output Valid after
SSx Edge
——50ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 66.7 ns. Therefore, the SCK clock generated by the Master must
not violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 365
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-14: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 1, SMP = 0) TIMING
CHARACTERISTICS
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDI
SP50
SP60
SDIx
SP30,SP31
MSb Bit 14 - - - - - -1 LSb
SP51
MSb In Bit 14 - - - -1 LSb In
SP35
SP52
SP52
SP73
SP72
SP72
SP73
SP70
SP40
SP41
Note: Refer to Figure 30-1 for load conditions.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 366 © 2007-2012 Microchip Technology Inc.
TABLE 30-33: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 1, SMP = 0) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscP Maximum SCK Input Frequency — — 11 MHz See Note 3
SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32
and Note 4
SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns —
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP50 TssL2scH,
TssL2scL
SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —
SP51 TssH2doZ SSx ↑ to SDOx Output
High-Impedance(4)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4
SP60 TssL2doV SDOx Data Output Valid after
SSx Edge
——50ns —
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 91 ns. Therefore, the SCK clock generated by the Master must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 367
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-15: SPIx SLAVE MODE (FULL-DUPLEX CKE = 0, CKP = 1, SMP = 0) TIMING
CHARACTERISTICS
SSX
SCKX
(CKP = 0)
SCKX
(CKP = 1)
SDOX
SP50
SP40
SP41
SP30,SP31 SP51
SP35
MSb LSb
Bit 14 - - - - - -1
MSb In Bit 14 - - - -1 LSb In
SP52
SP73
SP72
SP72
SP73
SP70
Note: Refer to Figure 30-1 for load conditions.
SDIX
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 368 © 2007-2012 Microchip Technology Inc.
TABLE 30-34: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 1, SMP = 0) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscP Maximum SCK Input Frequency — — 15 MHz See Note 3
SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32
and Note 4
SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns —
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP50 TssL2scH,
TssL2scL
SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —
SP51 TssH2doZ SSx ↑ to SDOx Output
High-Impedance(4)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 66.7 ns. Therefore, the SCK clock generated by the Master must
not violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 369
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-16: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 0, SMP = 0) TIMING
CHARACTERISTICS
SSX
SCKX
(CKP = 0)
SCKX
(CKP = 1)
SDOX
SP50
SP40
SP41
SP30,SP31 SP51
SP35
MSb LSb
Bit 14 - - - - - -1
MSb In Bit 14 - - - -1 LSb In
SP52
SP73
SP72
SP72
SP73
SP70
Note: Refer to Figure 30-1 for load conditions.
SDIX
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 370 © 2007-2012 Microchip Technology Inc.
TABLE 30-35: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 0, SMP = 0) TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscP Maximum SCK Input Frequency — — 11 MHz See Note 3
SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32
and Note 4
SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31
and Note 4
SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32
and Note 4
SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns —
SP36 TdoV2scH,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
30 — — ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 — — ns —
SP50 TssL2scH,
TssL2scL
SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —
SP51 TssH2doZ SSx ↑ to SDOx Output
High-Impedance(4)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4
Note 1: These parameters are characterized, but are not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: The minimum clock period for SCKx is 91 ns. Therefore, the SCK clock generated by the Master must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 371
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-17: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)
FIGURE 30-18: I2Cx BUS DATA TIMING CHARACTERISTICS (MASTER MODE)
IM31 IM34
SCLx
SDAx
Start
Condition
Stop
Condition
IM30 IM33
Note: Refer to Figure 30-1 for load conditions.
IM11 IM10 IM33
IM11
IM10
IM20
IM26 IM25
IM40 IM40 IM45
IM21
SCLx
SDAx
In
SDAx
Out
Note: Refer to Figure 30-1 for load conditions.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 372 © 2007-2012 Microchip Technology Inc.
TABLE 30-36: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min(1) Max Units Conditions
IM10 TLO:SCL Clock Low Time 100 kHz mode TCY/2 (BRG + 1) — μs—
400 kHz mode TCY/2 (BRG + 1) — μs—
1 MHz mode(2) TCY/2 (BRG + 1) — μs—
IM11 THI:SCL Clock High Time 100 kHz mode TCY/2 (BRG + 1) — μs—
400 kHz mode TCY/2 (BRG + 1) — μs—
1 MHz mode(2) TCY/2 (BRG + 1) — μs—
IM20 TF:SCL SDAx and SCLx
Fall Time
100 kHz mode — 300 ns CB is specified to be
from 10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(2) — 100 ns
IM21 TR:SCL SDAx and SCLx
Rise Time
100 kHz mode — 1000 ns CB is specified to be
from 10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(2) — 300 ns
IM25 TSU:DAT Data Input
Setup Time
100 kHz mode 250 — ns —
400 kHz mode 100 — ns
1 MHz mode(2) 40 — ns
IM26 THD:DAT Data Input
Hold Time
100 kHz mode 0 — μs—
400 kHz mode 0 0.9 μs
1 MHz mode(2) 0.2 — μs
IM30 TSU:STA Start Condition
Setup Time
100 kHz mode TCY/2 (BRG + 1) — μs Only relevant for
Repeated Start
condition
400 kHz mode TCY/2 (BRG + 1) — μs
1 MHz mode(2) TCY/2 (BRG + 1) — μs
IM31 THD:STA Start Condition
Hold Time
100 kHz mode TCY/2 (BRG + 1) — μs After this period the
first clock pulse is
generated
400 kHz mode TCY/2 (BRG + 1) — μs
1 MHz mode(2) TCY/2 (BRG + 1) — μs
IM33 TSU:STO Stop Condition
Setup Time
100 kHz mode TCY/2 (BRG + 1) — μs—
400 kHz mode TCY/2 (BRG + 1) — μs
1 MHz mode(2) TCY/2 (BRG + 1) — μs
IM34 THD:STO Stop Condition 100 kHz mode TCY/2 (BRG + 1) — ns —
Hold Time 400 kHz mode T
CY/2 (BRG + 1) — ns
1 MHz mode(2) TCY/2 (BRG + 1) — ns
IM40 TAA:SCL Output Valid
From Clock
100 kHz mode — 3500 ns —
400 kHz mode — 1000 ns —
1 MHz mode(2) — 400 ns —
IM45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — μs Time the bus must be
free before a new
transmission can start
400 kHz mode 1.3 — μs
1 MHz mode(2) 0.5 — μs
IM50 CBBus Capacitive Loading — 400 pF —
IM51 TPGD Pulse Gobbler Delay 65 390 ns See Note 3
Note 1: BRG is the value of the I2C Baud Rate Generator. Refer to Section 19. “Inter-Integrated Circuit™
(I2C™)” (DS70195) in the “dsPIC33F/PIC24H Family Reference Manual”. Please see the Microchip
website (www.microchip.com) for the latest dsPIC33F/PIC24H Family Reference Manual chapters.
2: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
3: Typical value for this parameter is 130 ns.
© 2007-2012 Microchip Technology Inc. DS70292G-page 373
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-19: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)
FIGURE 30-20: I2Cx BUS DATA TIMING CHARACTERISTICS (SLAVE MODE)
IS31 IS34
SCLx
SDAx
Start
Condition
Stop
Condition
IS30 IS33
IS30 IS31 IS33
IS11
IS10
IS20
IS26 IS25
IS40 IS40 IS45
IS21
SCLx
SDAx
In
SDAx
Out
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 374 © 2007-2012 Microchip Technology Inc.
TABLE 30-37: I2Cx BUS DATA TIMING REQUIREMENTS (SLAVE MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param. Symbol Characteristic Min Max Units Conditions
IS10 TLO:SCL Clock Low Time 100 kHz mode 4.7 — μs Device must operate at a
minimum of 1.5 MHz
400 kHz mode 1.3 — μs Device must operate at a
minimum of 10 MHz
1 MHz mode(1) 0.5 — μs—
IS11 THI:SCL Clock High Time 100 kHz mode 4.0 — μs Device must operate at a
minimum of 1.5 MHz
400 kHz mode 0.6 — μs Device must operate at a
minimum of 10 MHz
1 MHz mode(1) 0.5 — μs—
IS20 TF:SCL SDAx and SCLx
Fall Time
100 kHz mode — 300 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(1) — 100 ns
IS21 TR:SCL SDAx and SCLx
Rise Time
100 kHz mode — 1000 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 + 0.1 CB300 ns
1 MHz mode(1) — 300 ns
IS25 TSU:DAT Data Input
Setup Time
100 kHz mode 250 — ns —
400 kHz mode 100 — ns
1 MHz mode(1) 100 — ns
IS26 THD:DAT Data Input
Hold Time
100 kHz mode 0 — μs—
400 kHz mode 0 0.9 μs
1 MHz mode(1) 00.3μs
IS30 TSU:STA Start Condition
Setup Time
100 kHz mode 4.7 — μs Only relevant for Repeated
Start condition
400 kHz mode 0.6 — μs
1 MHz mode(1) 0.25 — μs
IS31 THD:STA Start Condition
Hold Time
100 kHz mode 4.0 — μs After this period, the first
clock pulse is generated
400 kHz mode 0.6 — μs
1 MHz mode(1) 0.25 — μs
IS33 TSU:STO Stop Condition
Setup Time
100 kHz mode 4.7 — μs—
400 kHz mode 0.6 — μs
1 MHz mode(1) 0.6 — μs
IS34 THD:ST
O
Stop Condition
Hold Time
100 kHz mode 4000 — ns —
400 kHz mode 600 — ns
1 MHz mode(1) 250 ns
IS40 TAA:SCL Output Valid
From Clock
100 kHz mode 0 3500 ns —
400 kHz mode 0 1000 ns
1 MHz mode(1) 0 350 ns
IS45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — μs Time the bus must be free
before a new transmission
can start
400 kHz mode 1.3 — μs
1 MHz mode(1) 0.5 — μs
IS50 CBBus Capacitive Loading — 400 pF —
Note 1: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
© 2007-2012 Microchip Technology Inc. DS70292G-page 375
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-21: DCI MODULE (MULTI-CHANNEL, I2S MODES) TIMING CHARACTERISTICS
COFS
CSCK
(SCKE =
0
)
CSCK
(SCKE =
1
)
CSDO
CSDI
CS11 CS10
CS40 CS41
CS21
CS20
CS35
CS21
MSb LSb
MSb In LSb In
CS31
High-Z High-Z
70
CS30
CS51 CS50
CS55
Note: Refer to Figure 30-1 for load conditions.
CS20
CS56
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 376 © 2007-2012 Microchip Technology Inc.
TABLE 30-38: DCI MODULE (MULTI-CHANNEL, I2S MODES) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
CS10 TCSCKL CSCK Input Low Time
(CSCK pin is an input)
TCY/2 + 20 — — ns —
CSCK Output Low Time(3)
(CSCK pin is an output)
30 — — ns —
CS11 TCSCKH CSCK Input High Time
(CSCK pin is an input)
TCY/2 + 20 — — ns —
CSCK Output High Time(3)
(CSCK pin is an output)
30 — — ns —
CS20 TCSCKF CSCK Output Fall Time(4)
(CSCK pin is an output)
—1025ns —
CS21 TCSCKR CSCK Output Rise Time(4)
(CSCK pin is an output)
—1025ns —
CS30 TCSDOF CSDO Data Output Fall Time(4) —1025ns —
CS31 TCSDOR CSDO Data Output Rise Time(4) —1025ns —
CS35 TDV Clock Edge to CSDO Data Valid — — 10 ns —
CS36 TDIV Clock Edge to CSDO Tri-Stated 10 — 20 ns —
CS40 TCSDI Setup Time of CSDI Data Input to
CSCK Edge (CSCK pin is input
or output)
20 — — ns —
CS41 THCSDI Hold Time of CSDI Data Input to
CSCK Edge (CSCK pin is input
or output)
20 — — ns —
CS50 TCOFSF COFS Fall Time
(COFS pin is output)
—1025nsSee Note 1
CS51 TCOFSR COFS Rise Time
(COFS pin is output)
—1025nsSee Note 1
CS55 TSCOFS Setup Time of COFS Data Input
to CSCK Edge (COFS pin is
input)
20 — — ns —
CS56 THCOFS Hold Time of COFS Data Input to
CSCK Edge (COFS pin is input)
20 — — ns —
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
3: The minimum clock period for CSCK is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all DCI pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 377
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-22: DCI MODULE (AC-LINK MODE) TIMING CHARACTERISTICS
SYNC
BIT_CLK
SDOx
SDIx
CS61 CS60
CS65 CS66
CS80
CS21
MSb In
CS75
LSb
CS76
(COFS)
(CSCK)
LSb
MSb
CS72
CS71 CS70
CS76 CS75
(CSDO)
(CSDI)
CS62 CS20
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 378 © 2007-2012 Microchip Technology Inc.
TABLE 30-39: DCI MODULE (AC-LINK MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤T
A ≤+125°C for Extended
Param
No. Symbol Characteristic(1,2) Min Typ(3) Max Units Conditions
CS60 TBCLKL BIT_CLK Low Time 36 40.7 45 ns —
CS61 TBCLKH BIT_CLK High Time 36 40.7 45 ns —
CS62 TBCLK BIT_CLK Period — 81.4 — ns Bit clock is input
CS65 TSACL Input Setup Time to
Falling Edge of BIT_CLK
—— 10 ns —
CS66 THACL Input Hold Time from
Falling Edge of BIT_CLK
—— 10 ns —
CS70 TSYNCLO SYNC Data Output Low Time — 19.5 — μsSee Note 1
CS71 TSYNCHI SYNC Data Output High Time — 1.3 — μsSee Note 1
CS72 TSYNC SYNC Data Output Period — 20.8 — μsSee Note 1
CS75 TRACL Rise Time, SYNC, SDATA_OUT — — 30 ns CLOAD = 50 pF, VDD = 3V
CS76 TFACL Fall Time, SYNC, SDATA_OUT — — 30 ns CLOAD = 50 pF, VDD = 3V
CS80 TOVDACL Output Valid Delay from Rising
Edge of BIT_CLK
—— 15 ns —
Note 1: These parameters are characterized but not tested in manufacturing.
2: These values assume BIT_CLK frequency is 12.288 MHz.
3: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
© 2007-2012 Microchip Technology Inc. DS70292G-page 379
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-23: ECAN™ MODULE I/O TIMING CHARACTERISTICS
TABLE 30-40: ECAN™ MODULE I/O TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
CA10 TioF Port Output Fall Time — — — ns See parameter D032
CA11 TioR Port Output Rise Time — — — ns See parameter D031
CA20 Tcwf Pulse-Width to Trigger
CAN Wake-up Filter
120 ns —
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
CiTx Pin
(output)
CA10 CA11
Old Value New Value
CA20
CiRx Pin
(input)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 380 © 2007-2012 Microchip Technology Inc.
TABLE 30-41: ADC MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
Device Supply
AD01 AVDD Module VDD Supply Greater of
VDD – 0.3
or 3.0
— Lesser of
VDD + 0.3
or 3.6
V
—
AD02 AVSS Module VSS Supply VSS – 0.3 — VSS + 0.3 V —
Reference Inputs
AD05 VREFH Reference Voltage High AVSS + 2.5 — AVDD V
AD05a 3.0 — 3.6 V VREFH = AVDD
VREFL = AVSS = 0
AD06 VREFL Reference Voltage Low AVSS —AVDD – 2.5 V
AD06a 0 — 0 V VREFH = AVDD
VREFL = AVSS = 0
AD07 VREF Absolute Reference
Voltage
2.5 — 3.6 V VREF = VREFH - VREFL
AD08 IREF Current Drain — — 10 μA ADC off
AD09 IAD Operating Current —
—
7.0
2.7
9.0
3.2
mA
mA
ADC operating in 10-bit
mode, see Note 1
ADC operating in 12-bit
mode, see Note 1
Analog Input
AD12 VINH Input Voltage Range VINH VINL —VREFH V This voltage reflects Sample
and Hold Channels 0, 1, 2,
and 3 (CH0-CH3), positive
input
AD13 VINL Input Voltage Range VINL VREFL —AVSS + 1V V This voltage reflects Sample
and Hold Channels 0, 1, 2,
and 3 (CH0-CH3), negative
input
AD17 RIN Recommended Imped-
ance of Analog Voltage
Source
—
—
—
—
200
200
Ω
Ω
10-bit ADC
12-bit ADC
Note 1: These parameters are not characterized or tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 381
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-42: ADC MODULE SPECIFICATIONS (12-BIT MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
ADC Accuracy (12-bit Mode) – Measurements with external VREF+/VREF-
AD20a Nr Resolution(1) 12 data bits bits
AD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD23a GERR Gain Error — 3.4 10 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD24a EOFF Offset Error — 0.9 5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD25a — Monotonicity — — — — Guaranteed
ADC Accuracy (12-bit Mode) – Measurements with internal VREF+/VREF-
AD20a Nr Resolution(1) 12 data bits bits
AD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD23a GERR Gain Error 2 10.5 20 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD24a EOFF Offset Error 2 3.8 10 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD25a — Monotonicity — — — — Guaranteed
Dynamic Performance (12-bit Mode)
AD30a THD Total Harmonic Distortion — — -75 dB —
AD31a SINAD Signal to Noise and
Distortion
68.5 69.5 — dB —
AD32a SFDR Spurious Free Dynamic
Range
80 — — dB —
AD33a FNYQ Input Signal Bandwidth — — 250 kHz —
AD34a ENOB Effective Number of Bits 11.09 11.3 — bits —
Note 1: Injection currents > |0| can affect the ADC results by approximately 4 to 6 counts (i.e., VIH source > (VDD +
0.3V) or VIL source < (VSS – 0.3V).
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 382 © 2007-2012 Microchip Technology Inc.
TABLE 30-43: ADC MODULE SPECIFICATIONS (10-BIT MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
ADC Accuracy (10-bit Mode) – Measurements with external VREF+/VREF-
AD20b Nr Resolution(1) 10 data bits bits —
AD21b INL Integral Nonlinearity -1.5 — +1.5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD23b GERR Gain Error — 3 6 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD24b EOFF Offset Error — 2 5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD25b — Monotonicity — — — — Guaranteed
ADC Accuracy (10-bit Mode) – Measurements with internal VREF+/VREF-
AD20b Nr Resolution(1) 10 data bits bits —
AD21b INL Integral Nonlinearity -1 — +1 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD23b GERR Gain Error 3 7 15 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD24b EOFF Offset Error 1.5 3 7 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD25b — Monotonicity — — — — Guaranteed
Dynamic Performance (10-bit Mode)
AD30b THD Total Harmonic Distortion — — -64 dB —
AD31b SINAD Signal to Noise and
Distortion
57 58.5 — dB —
AD32b SFDR Spurious Free Dynamic
Range
72 — — dB —
AD33b FNYQ Input Signal Bandwidth — — 550 kHz —
AD34b ENOB Effective Number of Bits 9.16 9.4 — bits —
Note 1: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
© 2007-2012 Microchip Technology Inc. DS70292G-page 383
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-24: ADC CONVERSION (12-BIT MODE) TIMING CHARACTERISTICS
(ASAM = 0, SSRC<2:0> = 000)
AD55
TSAMP
Clear SAMPSet SAMP
AD61
ADCLK
Instruction
SAMP
AD60
DONE
AD1IF
1 2 3 4 5 6 87
1– Software sets AD1CON. SAMP to start sampling.
2– Sampling starts after discharge period. TSAMP is described in
3– Software clears AD1CON. SAMP to start conversion.
4– Sampling ends, conversion sequence starts.
5– Convert bit 11.
9– One T
AD for end of conversion.
AD50
9
6– Convert bit 10.
7– Convert bit 1.
8– Convert bit 0.
Execution
in the “dsPIC33F/PIC24H Family Reference Manual”.
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 384 © 2007-2012 Microchip Technology Inc.
TABLE 30-44: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ(2) Max. Units Conditions
Clock Parameters(1)
AD50 TAD ADC Clock Period 117.6 — — ns —
AD51 tRC ADC Internal RC Oscillator
Period
— 250 — ns —
Conversion Rate
AD55 tCONV Conversion Time — 14 TAD ns —
AD56 FCNV Throughput Rate — — 500 ksps —
AD57 TSAMP Sample Time 3 TAD —— — —
Timing Parameters
AD60 tPCS Conversion Start from Sample
Trigger(2)
2 TAD —3 TAD — Auto convert trigger not
selected
AD61 tPSS Sample Start from Setting
Sample (SAMP) bit(2)
2 TAD —3 TAD ——
AD62 tCSS Conversion Completion to
Sample Start (ASAM = 1)(2)
— 0.5 TAD —— —
AD63 tDPU Time to Stabilize Analog Stage
from ADC Off to ADC On(2,3)
——20μs—
Note 1: Because the sample caps eventually loses charge, clock rates below 10 kHz may affect linearity
performance, especially at elevated temperatures.
2: These parameters are characterized but not tested in manufacturing.
3: The tDPU is the time required for the ADC module to stabilize at the appropriate level when the module is
turned on ADON bit (AD1CON1<15>) = ‘1’. During this time, the ADC result is indeterminate.
© 2007-2012 Microchip Technology Inc. DS70292G-page 385
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-25: ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
FIGURE 30-26: ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
AD55
TSAMP
Clear SAMPSet SAMP
AD61
ADCLK
Instruction
SAMP
AD60
DONE
AD1IF
1 2 3 4 5 6 8 5 6 7
1– Software sets AD1CON. SAMP to start sampling.
2– Sampling starts after discharge period. TSAMP is described in Section 16. “Analog-to-Digital Converter (ADC)”
3– Software clears AD1CON. SAMP to start conversion.
4– Sampling ends, conversion sequence starts.
5– Convert bit 9.
8– One TAD for end of conversion.
AD50
7
AD55
8
6– Convert bit 8.
7– Convert bit 0.
Execution
(DS70183) in the “dsPIC33F/PIC24H Family Reference Manual”.
1 2 3 4 5 6 4 5 6 8
1– Software sets AD1CON. ADON to start AD operation.
2– Sampling starts after discharge period. TSAMP is described in
3– Convert bit 9.
4– Convert bit 8.
5– Convert bit 0.
7 3
6– One TAD for end of conversion.
7– Begin conversion of next channel.
8– Sample for time specified by SAMC<4:0>.
ADCLK
Instruction Set ADON
Execution
SAMP
TSAMP
AD1IF
DONE
AD55 AD55 TSAMP AD55
AD50
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
in the “dsPIC33F/PIC24H Family Reference Manual'.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 386 © 2007-2012 Microchip Technology Inc.
TABLE 30-46: AUDIO DAC MODULE SPECIFICATIONS
TABLE 30-45: ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ(2) Max. Units Conditions
Clock Parameters(1)
AD50 TAD ADC Clock Period 76 — — ns —
AD51 tRC ADC Internal RC Oscillator Period — 250 — ns —
Conversion Rate
AD55 tCONV Conversion Time — 12 TAD —— —
AD56 FCNV Throughput Rate — — 1.1 Msps —
AD57 TSAMP Sample Time 2 TAD ——— —
Timing Parameters
AD60 tPCS Conversion Start from Sample
Trigger(2)
2 TAD —3 TAD — Auto-Convert Trigger
not selected
AD61 tPSS Sample Start from Setting
Sample (SAMP) bit(2)
2 TAD —3 TAD ——
AD62 tCSS Conversion Completion to
Sample Start (ASAM = 1)(2)
— 0.5 TAD —— —
AD63 tDPU Time to Stabilize Analog Stage
from ADC Off to ADC On(2,3)
——20μs—
Note 1: Because the sample caps eventually loses charge, clock rates below 10 kHz may affect linearity
performance, especially at elevated temperatures.
2: These parameters are characterized but not tested in manufacturing.
3: The tDPU is the time required for the ADC module to stabilize at the appropriate level when the module is
turned on ADON bit (AD1CON1<15>) = 1. During this time, the ADC result is indeterminate.
AC/DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
Clock Parameters
DA01 VOD+ Positive Output Differential
Voltage
11.152 VVOD+ = VDACH – VDACL
See Note 1, 2
DA02 VOD- Negative Output Differential
Voltage
-2 -1.15 -1 V VOD- = VDACL – VDACH
See Note 1, 2
DA03 VRES Resolution — 16 — bits —
DA04 GERR Gain Error — 3.1 — % —
DA08 FDAC Clock frequency — — 25.6 MHz —
DA09 FSAMP Sample Rate 0 — 100 kHz —
DA10 FINPUT Input data frequency 0 — 45 kHz Sampling frequency = 100 kHz
DA11 TINIT Initialization period 1024 — — Clks Time before first sample
DA12 SNR Signal-to-Noise Ratio — 61 dB Sampling frequency = 96 kHz
Note 1: Measured VDACH and VDACL output with respect to VSS, with 15 µA load and FORM bit (DACXCON<8>) = 0.
2: This parameter is tested at -40°C ≤ TA ≤ 85°C only.
© 2007-2012 Microchip Technology Inc. DS70292G-page 387
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 30-47: COMPARATOR TIMING SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
300 TRESP Response Time(1,2) — 150 400 ns —
301 TMC2OV Comparator Mode Change
to Output Valid(1)
——10μs—
Note 1: Parameters are characterized but not tested.
2: Response time measured with one comparator input at (VDD - 1.5)/2, while the other input transitions from
VSS to VDD.
TABLE 30-48: COMPARATOR MODULE SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
D300 VIOFF Input Offset Voltage(1) —±10—mV —
D301 VICM Input Common Mode Voltage(1) 0—AVDD-1.5V V —
D302 CMRR Common Mode Rejection Ratio (1) -54 — — dB —
Note 1: Parameters are characterized but not tested.
TABLE 30-49: COMPARATOR REFERENCE VOLTAGE SETTLING TIME SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
VR310 TSET Settling Time(1) ——10μs—
Note 1: Settling time measured while CVRR = 1 and CVR3:CVR0 bits transition from ‘0000’ to ‘1111’.
TABLE 30-50: COMPARATOR REFERENCE VOLTAGE SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
VRD310 CVRES Resolution CVRSRC/24 — CVRSRC/32 LSb —
VRD311 CVRAA Absolute Accuracy — — 0.5 LSb —
VRD312 CVRUR Unit Resistor Value (R) — 2k — Ω—
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 388 © 2007-2012 Microchip Technology Inc.
FIGURE 30-27: PARALLEL SLAVE PORT TIMING DIAGRAM
CS
PS3
PS4
PS1
PS2
RD
WR
PMD<7:0>
TABLE 30-51: PARALLEL SLAVE PORT TIME SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
PS1 TdtV2wrH Data in Valid before WR or CS
Inactive (setup time)
20 — — ns —
PS2 TwrH2dtI WR or CS Inactive to Data-In
Invalid (hold time)
20 — — ns —
PS3 TrdL2dtV RD and CS to Active Data-Out
Valid
— — 80 ns —
PS4 TrdH2dtI RD Active or CS Inactive to
Data-Out Invalid
10 — 30 ns —
© 2007-2012 Microchip Technology Inc. DS70292G-page 389
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-28: PARALLEL MASTER PORT READ TIMING DIAGRAM
P1 P2 P3 P4 P1 P2 P3 P4 P1 P2
System
PMA<13:8>
PMD<7:0>
Clock
PMRD
PMALL/PMALH
PMCS1
Address
Address <7:0> Data
PM2 PM3
PM6 PM7
PM5
PM1
PMWR
TABLE 30-52: PARALLEL MASTER PORT READ TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Characteristic Min. Typ Max. Units Conditions
PM1 PMALL/PMALH Pulse-Width — 0.5 TCY —ns —
PM2 Address Out Valid to PMALL/PMALH Invalid
(address setup time)
— 0.75 TCY —ns —
PM3 PMALL/PMALH Invalid to Address Out Invalid
(address hold time)
— 0.25 TCY —ns —
PM5 PMRD Pulse-Width — 0.5 TCY —ns —
PM6 PMRD or PMENB Active to Data In Valid (data
setup time)
150 — — ns —
PM7 PMRD or PMENB Inactive to Data In Invalid
(data hold time)
——5ns —
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 390 © 2007-2012 Microchip Technology Inc.
FIGURE 30-29: PARALLEL MASTER PORT WRITE TIMING DIAGRAM
TABLE 30-54: DMA READ/WRITE TIMING REQUIREMENTS
P1 P2 P3 P4 P1 P2 P3 P4 P1 P2
System
PMA<13:8>
PMD<7:0>
Clock
PMWR
PMALL/PMALH
PMCS1
Address
Address <7:0> Data
PM12
PM13
PM16
Data
PM11
PMRD
TABLE 30-53: PARALLEL MASTER PORT WRITE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Characteristic Min. Typ Max. Units Conditions
PM11 PMWR Pulse-Width — 0.5 TCY —ns —
PM12 Data Out Valid before PMWR or PMENB goes
Inactive (data setup time)
———ns —
PM13 PMWR or PMEMB Invalid to Data Out Invalid
(data hold time)
———ns —
PM16 PMCSx Pulse-Width TCY - 5 — — ns —
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No. Characteristic Min. Typ Max. Units Conditions
DM1 DMA Read/Write Cycle Time — — 1 TCY ns —
© 2007-2012 Microchip Technology Inc. DS70292G-page 391
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
31.0 HIGH TEMPERATURE ELECTRICAL CHARACTERISTICS
This section provides an overview of dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/
X04 electrical characteristics for devices operating in an ambient temperature range of -40°C to +150°C.
The specifications between -40°C to +150°C are identical to those shown in Section 30.0 “Electrical Characteristics”
for operation between -40°C to +125°C, with the exception of the parameters listed in this section.
Parameters in this section begin with an H, which denotes High temperature. For example, parameter DC10 in
Section 30.0 “Electrical Characteristics” is the Industrial and Extended temperature equivalent of HDC10.
Absolute maximum ratings for the dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and dsPIC33FJ128GPX02/X04
high temperature devices are listed below. Exposure to these maximum rating conditions for extended periods can affect
device reliability. Functional operation of the device at these or any other conditions above the parameters indicated in
the operation listings of this specification is not implied.
Absolute Maximum Ratings(1)
Ambient temperature under bias(4) .........................................................................................................-40°C to +150°C
Storage temperature .............................................................................................................................. -65°C to +160°C
Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V
Voltage on any pin that is not 5V tolerant with respect to VSS(5) .................................................... -0.3V to (VDD + 0.3V)
Voltage on any 5V tolerant pin with respect to VSS when VDD < 3.0V(5) ....................................... -0.3V to (VDD + 0.3V)
Voltage on any 5V tolerant pin with respect to VSS when VDD ≥ 3.0V(5) .................................................... -0.3V to 5.6V
Maximum current out of VSS pin .............................................................................................................................60 mA
Maximum current into VDD pin(2).............................................................................................................................60 mA
Maximum junction temperature............................................................................................................................. +155°C
Maximum current sourced/sunk by any 2x I/O pin(3) ................................................................................................2 mA
Maximum current sourced/sunk by any 4x I/O pin(3) ................................................................................................4 mA
Maximum current sourced/sunk by any 8x I/O pin(3) ................................................................................................8 mA
Maximum current sunk by all ports combined ........................................................................................................70 mA
Maximum current sourced by all ports combined(2) ................................................................................................70 mA
Note 1: Stresses above those listed under “Absolute Maximum Ratings” can cause permanent damage to the
device. This is a stress rating only, and functional operation of the device at those or any other conditions
above those indicated in the operation listings of this specification is not implied. Exposure to maximum
rating conditions for extended periods can affect device reliability.
2: Maximum allowable current is a function of device maximum power dissipation (see Table 31-2).
3: Unlike devices at 125°C and below, the specifications in this section also apply to the CLKOUT, VREF+,
VREF-, SCLx, SDAx, PGCx, and PGDx pins.
4: AEC-Q100 reliability testing for devices intended to operate at 150°C is 1,000 hours. Any design in which
the total operating time from 125°C to 150°C will be greater than 1,000 hours is not warranted without prior
written approval from Microchip Technology Inc.
5: Refer to the “Pin Diagrams” section for 5V tolerant pins.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 392 © 2007-2012 Microchip Technology Inc.
31.1 High Temperature DC Characteristics
TABLE 31-1: OPERATING MIPS VS. VOLTAGE
TABLE 31-2: THERMAL OPERATING CONDITIONS
TABLE 31-3: DC TEMPERATURE AND VOLTAGE SPECIFICATIONS
Characteristic VDD Range
(in Volts)
Temperature Range
(in °C)
Max MIPS
dsPIC33FJ32GP302/304,
dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04
— 3.0V to 3.6V(1) -40°C to +150°C 20
Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded
performance. Device functionality is tested but not characterized.
Rating Symbol Min Typ Max Unit
High Temperature Devices
Operating Junction Temperature Range TJ-40 — +155 °C
Operating Ambient Temperature Range TA-40 — +150 °C
Power Dissipation:
Internal chip power dissipation:
PINT = VDD x (IDD - Σ IOH) PDPINT + PI/OW
I/O Pin Power Dissipation:
I/O = Σ ({VDD - VOH} x IOH) + Σ (VOL x IOL)
Maximum Allowed Power Dissipation PDMAX (TJ - TA)/θJA W
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Parameter
No. Symbol Characteristic Min Typ Max Units Conditions
Operating Voltage
HDC10 Supply Voltage
VDD — 3.0 3.3 3.6 V -40°C to +150°C
Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded
performance. Device functionality is tested but not characterized.
© 2007-2012 Microchip Technology Inc. DS70292G-page 393
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-4: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD)
TABLE 31-5: DC CHARACTERISTICS: DOZE CURRENT (IDOZE)
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Parameter
No. Typical Max Units Conditions
Power-Down Current (IPD)
HDC60e 250 2000 μA +150°C 3.3V Base Power-Down Current(1,3)
HDC61c 3 5 μA +150°C 3.3V Watchdog Timer Current: ΔIWDT(2,4)
Note 1: Base IPD is measured with all peripherals and clocks shut down. All I/Os are configured as inputs and
pulled to VSS. WDT, etc., are all switched off, and VREGS (RCON<8>) = 1.
2: The Δ current is the additional current consumed when the module is enabled. This current should be
added to the base IPD current.
3: These currents are measured on the device containing the most memory in this family.
4: These parameters are characterized, but are not tested in manufacturing.
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150ºC for High Temperature
Parameter
No. Typical(1) Max Doze
Ratio Units Conditions
HDC72a 39 45 1:2 mA
+150°C 3.3V 20 MIPSHDC72f 18 25 1:64 mA
HDC72g 18 25 1:128 mA
Note 1: Parameters with Doze ratios of 1:2 and 1:64 are characterized, but are not tested in manufacturing.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 394 © 2007-2012 Microchip Technology Inc.
TABLE 31-6: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High
Temperature
Param. Symbol Characteristic Min. Typ. Max. Units Conditions
DO10 VOL
Output Low Voltage
I/O Pins:
2x Sink Driver Pins - RA2, RA7-
RA10, RB10, RB11, RB7, RB4,
RC3-RC9
——0.4V IOL ≤ 1.8 mA, VDD = 3.3V
See Note 1
Output Low Voltage
I/O Pins:
4x Sink Driver Pins - RA0, RA1,
RB0-RB3, RB5, RB6, RB8, RB9,
RB12-RB15, RC0-RC2
——0.4V IOL ≤ 3.6 mA, VDD = 3.3V
See Note 1
Output Low Voltage
I/O Pins:
8x Sink Driver Pins - RA3, RA4
——0.4V IOL ≤ 6 mA, VDD = 3.3V
See Note 1
DO20 VOH
Output High Voltage
I/O Pins:
2x Source Driver Pins - RA2,
RA7-RA10, RB4, RB7, RB10,
RB11, RC3-RC9
2.4 — — V IOL ≥-1.8 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
4x Source Driver Pins - RA0,
RA1, RB0-RB3, RB5, RB6, RB8,
RB9, RB12-RB15, RC0-RC2
2.4 — — V IOL ≥-3 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
8x Source Driver Pins - RA4,
RA3
2.4 — — V IOL ≥-6 mA, VDD = 3.3V
See Note 1
DO20A VOH1
Output High Voltage
I/O Pins:
2x Source Driver Pins - RA2,
RA7-RA10, RB4, RB7, RB10,
RB11, RC3-RC9
1.5 — —
V
IOH ≥-1.9 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-1.85 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-1.4 mA, VDD = 3.3V
See Note 1
Output High Voltage
4x Source Driver Pins - RA0,
RA1, RB0-RB3, RB5, RB6, RB8,
RB9, RB12-RB15, RC0-RC2
1.5 — —
V
IOH ≥-3.9 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-3.7 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-2 mA, VDD = 3.3V
See Note 1
Output High Voltage
I/O Pins:
8x Source Driver Pins - RA3,
RA4
1.5 — —
V
IOH ≥-7.5 mA, VDD = 3.3V
See Note 1
2.0 — — IOH ≥-6.8 mA, VDD = 3.3V
See Note 1
3.0 — — IOH ≥-3 mA, VDD = 3.3V
See Note 1
Note 1: Parameters are characterized, but not tested.
© 2007-2012 Microchip Technology Inc. DS70292G-page 395
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-7: DC CHARACTERISTICS: PROGRAM MEMORY
DC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
Program Flash Memory
HD130 EPCell Endurance 10,000 — — E/W -40°C to +150ºC(2)
HD134 TRETD Characteristic Retention 20 — — Year 1000 E/W cycles or less and no
other specifications are violated
Note 1: These parameters are assured by design, but are not characterized or tested in manufacturing.
2: Programming of the Flash memory is allowed up to 150°C.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 396 © 2007-2012 Microchip Technology Inc.
31.2 AC Characteristics and Timing
Parameters
The information contained in this section defines
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 AC characteristics and
timing parameters for high temperature devices.
However, all AC timing specifications in this section are
the same as those in Section 30.2 “AC
Characteristics and Timing Parameters”, with the
exception of the parameters listed in this section.
Parameters in this section begin with an H, which
denotes High temperature. For example, parameter
OS53 in Section 30.2 “AC Characteristics and
Timing Parameters” is the Industrial and Extended
temperature equivalent of HOS53.
TABLE 31-8: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC
FIGURE 31-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
TABLE 31-9: PLL CLOCK TIMING SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Operating voltage VDD range as described in Table 31-1.
VDD/2
CL
RL
Pin
Pin
VSS
VSS
CL
RL=464Ω
CL= 50 pF for all pins except OSC2
15 pF for OSC2 output
Load Condition 1 – for all pins except OSC2 Load Condition 2 – for OSC2
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
HOS53 DCLK CLKO Stability (Jitter)(1) -5 0.5 5 % Measured over 100 ms
period
Note 1: These parameters are characterized, but are not tested in manufacturing.
© 2007-2012 Microchip Technology Inc. DS70292G-page 397
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-10: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS
TABLE 31-11: SPIx MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
HSP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—1025ns —
HSP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
28 — — ns —
HSP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
35 — — ns —
Note 1: These parameters are characterized but not tested in manufacturing.
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
HSP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—1025ns —
HSP36 TdoV2sc,
TdoV2scL
SDOx Data Output Setup to
First SCKx Edge
35 — — ns —
HSP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
28 — — ns —
HSP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
35 — — ns —
Note 1: These parameters are characterized but not tested in manufacturing.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 398 © 2007-2012 Microchip Technology Inc.
TABLE 31-12: SPIx MODULE SLAVE MODE (CKE = 0) TIMING REQUIREMENTS
TABLE 31-13: SPIx MODULE SLAVE MODE (CKE = 1) TIMING REQUIREMENTS
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
HSP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
——35ns —
HSP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
25 — — ns —
HSP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input to
SCKx Edge
25 — — ns —
HSP51 TssH2doZ SSx ↑ to SDOx Output
High-Impedance
15 — 55 ns See Note 2
Note 1: These parameters are characterized but not tested in manufacturing.
2: Assumes 50 pF load on all SPIx pins.
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
HSP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
— — 35 ns —
HSP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
25 — — ns —
HSP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
25 — — ns —
HSP51 TssH2doZ SSx ↑ to SDOX Output
High-Impedance
15 — 55 ns See Note 2
HSP60 TssL2doV SDOx Data Output Valid after
SSx Edge
— — 55 ns —
Note 1: These parameters are characterized but not tested in manufacturing.
2: Assumes 50 pF load on all SPIx pins.
© 2007-2012 Microchip Technology Inc. DS70292G-page 399
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-14: ADC MODULE SPECIFICATIONS
TABLE 31-15: ADC MODULE SPECIFICATIONS (12-BIT MODE)
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
Reference Inputs
HAD08 IREF Current Drain —
—
250
—
600
50
μA
μA
ADC operating, See Note 1
ADC off, See Note 1
Note 1: These parameters are not characterized or tested in manufacturing.
2: These parameters are characterized, but are not tested in manufacturing.
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
ADC Accuracy (12-bit Mode) – Measurements with External VREF+/VREF-(1)
HAD20a Nr Resolution(3) 12 data bits bits —
HAD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD23a GERR Gain Error -2 — 10 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD24a EOFF Offset Error -3 — 5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
ADC Accuracy (12-bit Mode) – Measurements with Internal VREF+/VREF-(1)
HAD20a Nr Resolution(3) 12 data bits bits —
HAD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD23a GERR Gain Error 2 — 20 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD24a EOFF Offset Error 2 — 10 LSb VINL = AVSS = 0V, AVDD = 3.6V
Dynamic Performance (12-bit Mode)(2)
HAD33a FNYQ Input Signal Bandwidth — — 200 kHz —
Note 1: These parameters are characterized, but are tested at 20 ksps only.
2: These parameters are characterized by similarity, but are not tested in manufacturing.
3: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 400 © 2007-2012 Microchip Technology Inc.
TABLE 31-16: ADC MODULE SPECIFICATIONS (10-BIT MODE)
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
ADC Accuracy (10-bit Mode) – Measurements with External VREF+/VREF-(1)
HAD20b Nr Resolution(3) 10 data bits bits —
HAD21b INL Integral Nonlinearity -3 — 3 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD23b GERR Gain Error -5 — 6 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
HAD24b EOFF Offset Error -1 — 5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
ADC Accuracy (10-bit Mode) – Measurements with Internal VREF+/VREF-(1)
HAD20b Nr Resolution(3) 10 data bits bits —
HAD21b INL Integral Nonlinearity -2 — 2 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD23b GERR Gain Error -5 — 15 LSb VINL = AVSS = 0V, AVDD = 3.6V
HAD24b EOFF Offset Error -1.5 — 7 LSb VINL = AVSS = 0V, AVDD = 3.6V
Dynamic Performance (10-bit Mode)(2)
HAD33b FNYQ Input Signal Bandwidth — — 400 kHz —
Note 1: These parameters are characterized, but are tested at 20 ksps only.
2: These parameters are characterized by similarity, but are not tested in manufacturing.
3: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.
© 2007-2012 Microchip Technology Inc. DS70292G-page 401
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
TABLE 31-17: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS
TABLE 31-18: ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
Clock Parameters
HAD50 TAD ADC Clock Period(1) 147 — — ns —
Conversion Rate
HAD56 FCNV Throughput Rate(1) — — 400 Ksps —
Note 1: These parameters are characterized but not tested in manufacturing.
AC
CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature
Param
No. Symbol Characteristic Min Typ Max Units Conditions
Clock Parameters
HAD50 TAD ADC Clock Period(1) 104 — — ns —
Conversion Rate
HAD56 FCNV Throughput Rate(1) ——800Ksps —
Note 1: These parameters are characterized but not tested in manufacturing.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 402 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 403
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
32.0 DC AND AC DEVICE CHARACTERISTICS GRAPHS
FIGURE 32-1: VOH – 2x DRIVER PINS
FIGURE 32-2: VOH – 4x DRIVER PINS
FIGURE 32-3: VOH – 8x DRIVER PINS
FIGURE 32-4: VOH – 16x DRIVER PINS
Note: The graphs provided following this note are a statistical summary based on a limited number of samples and are provided for design guidance purposes only.
The performance characteristics listed herein are not tested or guaranteed. In some graphs, the data presented may be outside the specified operating range
(e.g., outside specified power supply range) and therefore, outside the warranted range.
-0.016
-0.014
-0.012
-0.010
-0.008
-0.006
-0.004
IOH (A)
-0.016
-0.014
-0.012
-0.010
-0.008
-0.006
-0.004
-0.002
0.000
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00
IOH (A)
VOH (V)
3V
3.3V
3.6V
-0.030
-0.025
-0.020
-0.015
-0.010
IOH (A)
-0.030
-0.025
-0.020
-0.015
-0.010
-0.005
0.000
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00
IOH (A)
VOH (V)
3V
3.3V
3.6V
-0.040
-0.035
-0.030
-0.025
-0.020
-0.015
IOH (A)
-0.040
-0.035
-0.030
-0.025
-0.020
-0.015
-0.010
-0.005
0.000
0.00 1.00 2.00 3.00 4.00
IOH (A)
VOH (V)
3V
3.3V
3.6V
-0.080
-0.070
-0.060
-0.050
-0.040
-0.030
-0.020
IOH (A)
-0.080
-0.070
-0.060
-0.050
-0.040
-0.030
-0.020
-0.010
0.000
0.00 1.00 2.00 3.00 4.00
IOH (A)
VOH (V)
3V
3.3V
3.6V
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 404 © 2007-2012 Microchip Technology Inc.
FIGURE 32-5: VOL – 2x DRIVER PINS
FIGURE 32-6: VOL – 4x DRIVER PINS
FIGURE 32-7: VOL – 8x DRIVER PINS
FIGURE 32-8: VOL – 16x DRIVER PINS
0.006
0.008
0.010
0.012
0.014
0.016
0.018
0.020
IOL (A)
0.000
0.002
0.004
0.006
0.008
0.010
0.012
0.014
0.016
0.018
0.020
0.00 1.00 2.00 3.00 4.00
IOL (A)
VOL (V)
3V
3.3V
3.6V
0.010
0.015
0.020
0.025
0.030
0.035
0.040
IOL (A)
0.000
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.00 1.00 2.00 3.00 4.00
IOL (A)
VOL (V)
3V
3.3V
3.6V
0.020
0.030
0.040
0.050
0.060
IOL (A)
0.000
0.010
0.020
0.030
0.040
0.050
0.060
0.00 1.00 2.00 3.00 4.00
IOL (A)
VOL (V)
3V
3.3V
3.6V
0.040
0.060
0.080
0.100
0.120
IOL (A)
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.00 1.00 2.00 3.00 4.00
IOL (A)
VOL (V)
3V
3.3V
3.6V
© 2007-2012 Microchip Technology Inc. DS70292G-page 405
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 32-9: TYPICAL IPD CURRENT @ VDD = 3.3V, +85ºC
FIGURE 32-10: TYPICAL IDD CURRENT @ VDD = 3.3V, +85ºC
FIGURE 32-11: TYPICAL IDOZE CURRENT @ VDD = 3.3V, +85ºC
FIGURE 32-12: TYPICAL IIDLE CURRENT @ VDD = 3.3V, +85ºC
400
600
800
1000
1200
IPD (uA)
0
200
400
600
800
1000
1200
-40-30-20-100 102030405060708090100110120
IPD (uA)
Temperature (Celsius)
20
30
40
50
60
IDD (mA)
0
10
20
30
40
50
60
0 5 10 15 20 25 30 35 40 45
IDD (mA)
MIPS
PMD = 0, no PLL
PMD = 0, with PLL
PMD = 1, no PLL
PMD = 1, with PLL
20.00
30.00
40.00
50.00
60.00
70.00
80.00
IDOZE Current (mA)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
1:1 2:1 64:1 128:1
IDOZE Current (mA)
Doze Ratio
10
15
20
25
30
35
IIDLE Current (mA)
0
5
10
15
20
25
30
35
10 20 30 40
IIDLE Current (mA)
MIPS
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 406 © 2007-2012 Microchip Technology Inc.
FIGURE 32-13: TYPICAL FRC FREQUENCY @ VDD = 3.3V FIGURE 32-14: TYPICAL LPRC FREQUENCY @ VDD = 3.3V
7200
7300
7400
7500
-40-30-20-10 0 102030405060708090100110120
FRC Frequency (kHz)
Temperature (Celsius)
30
35
LPRC Frequency (kHz)
25
30
35
-40-30-20-10 0 102030405060708090100110120
LPRC Frequency (kHz)
Temperature (Celsius)
© 2007-2012 Microchip Technology Inc. DS70292G-page 407
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
33.0 PACKAGING INFORMATION
Legend: XX...X Customer-specific information
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
*This package is Pb-free. The Pb-free JEDEC designator ( )
can be found on the outer packaging for this package.
Note: If the full Microchip part number cannot be marked on one line, it is carried over to the next
line, thus limiting the number of available characters for customer-specific information.
3
e
3
e
28-Lead SPDIP
XXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX
YYWWNNN
Example
dsPIC33FJ32GP
0730235
28-Lead SOIC
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
YYWWNNN
Example
dsPIC33FJ32GP
0730235
302-E/SP
302-E/SO
3
e
3
e
XXXXXXXXXX
44-Lead QFN
XXXXXXXXXX
XXXXXXXXXX
YYWWNNN
dsPIC
Example
-E/ML
0730235
44-Lead TQFP
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
YYWWNNN
33FJ32GP304
Example
dsPIC
-I/PT
0730235
33FJ32GP304
3
e
3
e
XXXXXXXX
28-Lead QFN-S
XXXXXXXX
YYWWNNN
33FJ32GP
Example
302E/MM
0730235
3
e
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 408 © 2007-2012 Microchip Technology Inc.
33.1 Package Details
28-Lead Skinny Plastic Dual In-Line (SP) – 300 mil Body [SPDIP]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. § Significant Characteristic.
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" per side.
4. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Units INCHES
Dimension Limits MIN NOM MAX
Number of Pins N 28
Pitch e .100 BSC
Top to Seating Plane A – – .200
Molded Package Thickness A2 .120 .135 .150
Base to Seating Plane A1 .015 – –
Shoulder to Shoulder Width E .290 .310 .335
Molded Package Width E1 .240 .285 .295
Overall Length D 1.345 1.365 1.400
Tip to Seating Plane L .110 .130 .150
Lead Thickness c .008 .010 .015
Upper Lead Width b1 .040 .050 .070
Lower Lead Width b .014 .018 .022
Overall Row Spacing § eB – – .430
NOTE 1
N
12
D
E1
eB
c
E
L
A2
eb
b1
A1
A
3
Microchip Technology Drawing C04-070B
© 2007-2012 Microchip Technology Inc. DS70292G-page 409
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 410 © 2007-2012 Microchip Technology Inc.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
© 2007-2012 Microchip Technology Inc. DS70292G-page 411
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 412 © 2007-2012 Microchip Technology Inc.
28-Lead Plastic Quad Flat, No Lead Package (MM) – 6x6x0.9 mm Body [QFN-S]
with 0.40 mm Contact Length
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Package is saw singulated.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Units MILLIMETERS
Dimension Limits MIN NOM MAX
Number of Pins N 28
Pitch e 0.65 BSC
Overall Height A 0.80 0.90 1.00
Standoff A1 0.00 0.02 0.05
Contact Thickness A3 0.20 REF
Overall Width E 6.00 BSC
Exposed Pad Width E2 3.65 3.70 4.70
Overall Length D 6.00 BSC
Exposed Pad Length D2 3.65 3.70 4.70
Contact Width b 0.23 0.38 0.43
Contact Length L 0.30 0.40 0.50
Contact-to-Exposed Pad K 0.20 – –
D
E
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TOP VIEW BOTTOM VIEW
Microchip Technology Drawing C04-124B
© 2007-2012 Microchip Technology Inc. DS70292G-page 413
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
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DS70292G-page 414 © 2007-2012 Microchip Technology Inc.
44-Lead Plastic Quad Flat, No Lead Package (ML) – 8x8 mm Body [QFN]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Package is saw singulated.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Units MILLIMETERS
Dimension Limits MIN NOM MAX
Number of Pins N 44
Pitch e 0.65 BSC
Overall Height A 0.80 0.90 1.00
Standoff A1 0.00 0.02 0.05
Contact Thickness A3 0.20 REF
Overall Width E 8.00 BSC
Exposed Pad Width E2 6.30 6.45 6.80
Overall Length D 8.00 BSC
Exposed Pad Length D2 6.30 6.45 6.80
Contact Width b 0.25 0.30 0.38
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Microchip Technology Drawing C04-103B
© 2007-2012 Microchip Technology Inc. DS70292G-page 415
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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 416 © 2007-2012 Microchip Technology Inc.
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
© 2007-2012 Microchip Technology Inc. DS70292G-page 417
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
APPENDIX A: REVISION HISTORY
Revision A (September 2007)
This is the initial released version of this document.
Revision B (March 2008)
This revision includes minor typographical and
formatting changes throughout the data sheet text. In
addition, redundant information was removed that is
now available in the respective chapters of the
dsPIC33F/PIC24H Family Reference Manual, which
can be obtained from the Microchip website
(www.microchip.com).
The major changes are referenced by their respective
section in the following table.
TABLE A-1: MAJOR SECTION UPDATES
Section Name Update Description
“High-Performance, 16-bit Digital Signal
Controllers”
Note 1 added to all pin diagrams (see “Pin Diagrams”).
Add External Interrupts column and Note 3 to the
“dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04 Controller Families” table.
Section 1.0 “Device Overview” Updated parameters PMA0, PMA1, and PMD0 through PMPD7
(Table 1-1).
Section 6.0 “Interrupt Controller” IFS0-IFSO4 changed to IFSX (see Section 6.3.2 “IFSx”).
IEC0-IEC4 changed to IECX (see Section 6.3.3 “IECx”).
IPC0-IPC19 changed to IPCx (see Section 6.3.4 “IPCx”).
Section 7.0 “Direct Memory Access (DMA)” Updated parameter PMP (see Table 7-1).
Section 8.0 “Oscillator Configuration” Updated the third clock source item (External Clock) in
Section 8.1.1 “System Clock Sources”.
Updated TUN<5:0> (OSCTUN<5:0>) bit description (see
Register 8-4).
Section 20.0 “10-bit/12-bit Analog-to-Digital
Converter (ADC1)”
Added Note 2 to Figure 20-3.
Section 26.0 “Special Features” Added Note 2 to Figure 26-1.
Added Note after second paragraph in Section 26.2 “On-Chip
Voltage Regulator”.
Section 29.0 “Electrical Characteristics” Updated Max MIPS for temperature range of -40ºC to +125ºC in
Table 29-1.
Updated typical values in Thermal Packaging Characteristics in
Table 29-3.
Added parameters DI11 and DI12 to Table 29-9.
Updated minimum values for parameters D136 (TRW) and D137
(TPE) and removed typical values in Table 29-12.
Added Extended temperature range to Table 29-13.
Updated parameter AD63 and added Note 3 to Table 29-40 and
Table 29-41.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 418 © 2007-2012 Microchip Technology Inc.
Revision C (May 2009)
This revision includes minor typographical and
formatting changes throughout the data sheet text.
Global changes include:
• Changed all instances of OSCI to OSC1 and
OSCO to OSC2
• Changed all instances of VDDCORE and VDDCORE/
VCAP to VCAP/VDDCORE
The other changes are referenced by their respective
section in the following table.
TABLE A-2: MAJOR SECTION UPDATES
Section Name Update Description
High-Performance, 16-bit Digital
Signal Controllers
Updated all pin diagrams to denote the pin voltage tolerance (see “Pin
Diagrams”).
Added Note 2 to the 28-Pin QFN-S and 44-Pin QFN pin diagrams, which
references pin connections to VSS.
Section 1.0 “Device Overview” Updated AVDD in the PINOUT I/O Descriptions (see Table 1-1).
Added Peripheral Pin Select (PPS) capability column to Pinout I/O
Descriptions (see Table 1-1).
Section 2.0 “Guidelines for Getting
Started with 16-bit Digital Signal
Controllers”
Added new section to the data sheet that provides guidelines on getting
started with 16-bit Digital Signal Controllers.
Section 3.0 “CPU” Updated CPU Core Block Diagram with a connection from the DSP Engine
to the Y Data Bus (see Figure 3-1).
Vertically extended the X and Y Data Bus lines in the DSP Engine Block
Diagram (see Figure 3-3).
Section 4.0 “Memory Organization” Updated Reset value for CORCON in the CPU Core Register Map (see
Table 4-1).
Updated the Reset values for IPC14 and IPC15 and removed the FLTA1IE
bit (IEC3) from the Interrupt Controller Register Map (see Table 4-4).
Updated bit locations for RPINR25 in the Peripheral Pin Select Input
Register Map (see Table 4-21).
Updated the Reset value for CLKDIV in the System Control Register Map
(see Table 4-33).
Section 5.0 “Flash Program
Memory”
Updated Section 5.3 “Programming Operations” with programming time
formula.
Section 9.0 “Oscillator
Configuration”
Updated the Oscillator System Diagram and added Note 2 (see Figure 9-1).
Added Note 1 and Note 2 to the OSCON register (see Register 9-1).
Updated default bit values for DOZE<2:0> and FRCDIV<2:0> in the Clock
Divisor (CLKDIV) Register (see Register 9-2).
Added a paragraph regarding FRC accuracy at the end of Section 9.1.1
“System Clock Sources”.
Added Note 3 to Section 9.2.2 “Oscillator Switching Sequence”.
Added Note 1 to the FRC Oscillator Tuning (OSCTUN) Register (see
Register 9-4).
© 2007-2012 Microchip Technology Inc. DS70292G-page 419
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Section 10.0 “Power-Saving
Features”
Added the following registers:
• PMD1: Peripheral Module Disable Control Register 1 (Register 10-1)
• PMD2: Peripheral Module Disable Control Register 2 (Register 10-2)
• PMD3: Peripheral Module Disable Control Register 3 (Register 10-3)
Section 11.0 “I/O Ports” Removed Table 11-1 and added reference to pin diagrams for I/O pin
availability and functionality.
Added paragraph on ADPCFG register default values to Section 11.3
“Configuring Analog Port Pins”.
Added Note box regarding PPS functionality with input mapping to
Section 11.6.2.1 “Input Mapping”.
Section 16.0 “Serial Peripheral
Interface (SPI)”
Added Note 2 and 3 to the SPIxCON1 register (see Register 16-2).
Section 18.0 “Universal
Asynchronous Receiver Transmitter
(UART)”
Updated the Notes in the UxMODE register (see Register 18-1).
Updated the UTXINV bit settings in the UxSTA register and added Note 1
(see Register 18-2).
Section 19.0 “Enhanced CAN
(ECAN™) Module”
Changed bit 11 in the ECAN Control Register 1 (CiCTRL1) to Reserved (see
Register 19-1).
Section 21.0 “10-bit/12-bit Analog-
to-Digital Converter (ADC)”
Replaced the ADC1 Module Block Diagrams with new diagrams (see
Figure 21-1 and Figure 21-2).
Updated bit values for ADCS<7:0> and added Notes 1 and 2 to the ADC1
Control Register 3 (AD1CON3) (see Register 21-3).
Added Note 2 to the ADC1 Input Scan Select Register Low (AD1CSSL) (see
Register 21-7).
Added Note 2 to the ADC1 Port Configuration Register Low (AD1PCFGL)
(see Register 21-8).
Section 22.0 “Audio Digital-to-
Analog Converter (DAC)”
Updated the midpoint voltage in the last sentence of the first paragraph.
Updated the voltage swing values in the last sentence of the last paragraph
in Section 22.3 “DAC Output Format”.
Section 23.0 “Comparator Module” Updated the Comparator Voltage Reference Block Diagram
(see Figure 23-2).
Section 24.0 “Real-Time Clock and
Calendar (RTCC)”
Updated the minimum positive adjust value for CAL<7:0> in the RTCC
Calibration and Configuration (RCFGCAL) Register (see Register 24-1).
Section 27.0 “Special Features” Added Note 1 to the Device Configuration Register Map (see Table 27-1).
Updated Note 1 in the dsPIC33F Configuration Bits Description (see
Table 27-2).
TABLE A-2: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 420 © 2007-2012 Microchip Technology Inc.
Section 30.0 “Electrical
Characteristics”
Updated Typical values for Thermal Packaging Characteristics (see
Table 30-3).
Updated Min and Max values for parameter DC12 (RAM Data Retention
Voltage) and added Note 4 (see Table 30-4).
Updated Power-Down Current Max values for parameters DC60b and
DC60c (see Table 30-7).
Updated Characteristics for I/O Pin Input Specifications and added
parameter DI21 (see Table 30-9).
Updated Program Memory values for parameters 136, 137, and 138
(renamed to 136a, 137a, and 138a), added parameters 136b, 137b, and
138b, and added Note 2 (see Table 30-12).
Added parameter OS42 (GM) to the External Clock Timing Requirements
(see Table 30-16).
Updated Watchdog Timer Time-out Period parameter SY20 (see
Table 30-21).
Updated the IREF Current Drain parameter AD08 (see Table 30-37).
Updated parameters AD30a, AD31a, AD32a, AD33a, and AD34a (see
Table 30-38)
Updated parameters AD30b, AD31b, AD32b, AD33b, and AD34b (see
Table 30-39)
TABLE A-2: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
© 2007-2012 Microchip Technology Inc. DS70292G-page 421
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Revision D (November 2009)
The revision includes the following global update:
• Added Note 2 to the shaded table that appears at
the beginning of each chapter. This new note
provides information regarding the availability of
registers and their associated bits
This revision also includes minor typographical and
formatting changes throughout the data sheet text.
All other major changes are referenced by their
respective section in the following table.
TABLE A-3: MAJOR SECTION UPDATES
Section Name Update Description
“High-Performance, 16-bit Digital Signal
Controllers”
Added information on high temperature operation (see “Operating
Range:”).
Section 11.0 “I/O Ports” Changed the reference to digital-only pins to 5V tolerant pins in the
second paragraph of Section 11.2 “Open-Drain Configuration”.
Section 18.0 “Universal Asynchronous
Receiver Transmitter (UART)”
Updated the two baud rate range features to: 10 Mbps to 38 bps at
40 MIPS.
Section 21.0 “10-bit/12-bit Analog-to-Digital
Converter (ADC)”
Updated the ADC block diagrams (see Figure 21-1 and Figure 21-2).
Section 22.0 “Audio Digital-to-Analog
Converter (DAC)”
Removed last sentence of the first paragraph in the section.
Added a shaded note to Section 22.2 “DAC Module Operation”.
Updated Figure 22-2: “Audio DAC Output for Ramp Input
(Unsigned)”.
Section 27.0 “Special Features” Updated the second paragraph and removed the fourth paragraph in
Section 27.1 “Configuration Bits”.
Updated the Device Configuration Register Map (see Table 27-1).
Section 30.0 “Electrical Characteristics” Updated the Absolute Maximum Ratings for high temperature and
added Note 4.
Removed parameters DI26, DI28, and DI29 from the I/O Pin Input
Specifications (see Table 30-9).
Updated the SPIx Module Slave Mode (CKE = 1) Timing
Characteristics (see Figure 30-12).
Removed Table 30-43: Audio DAC Module Specifications. Original
contents were updated and combined with Table 30-42 of the same
name.
Section 31.0 “High Temperature Electrical
Characteristics”
Added new chapter with high temperature specifications.
“Product Identification System” Added the “H” definition for high temperature.
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 422 © 2007-2012 Microchip Technology Inc.
Revision E (January 2011)
This includes typographical and formatting changes
throughout the data sheet text. In addition, the
Preliminary marking in the footer was removed.
All instances of VDDCORE have been removed.
All other major changes are referenced by their
respective section in the following table.
TABLE A-4: MAJOR SECTION UPDATES
Section Name Update Description
“High-Performance, 16-bit Digital Signal
Controllers”
The high temperature end range was updated to +150ºC (see
“Operating Range:”).
Section 2.0 “Guidelines for Getting Started
with 16-bit Digital Signal Controllers”
Updated the title of Section 2.3 “CPU Logic Filter Capacitor
Connection (VCAP)”.
The frequency limitation for device PLL start-up conditions was
updated in Section 2.7 “Oscillator Value Conditions on Device
Start-up”.
The second paragraph in Section 2.9 “Unused I/Os” was updated.
Section 4.0 “Memory Organization” The All Resets values for the following SFRs in the Timer Register
Map were changed (see Table 4-5):
•TMR1
•TMR2
•TMR3
•TMR4
•TMR5
Section 9.0 “Oscillator Configuration” Added Note 3 to the OSCCON: Oscillator Control Register (see
Register 9-1).
Added Note 2 to the CLKDIV: Clock Divisor Register (see
Register 9-2).
Added Note 1 to the PLLFBD: PLL Feedback Divisor Register (see
Register 9-3).
Added Note 2 to the OSCTUN: FRC Oscillator Tuning Register (see
Register 9-4).
Added Note 1 to the ACLKCON: Auxiliary Control Register (see
Register 9-5).
Section 21.0 “10-bit/12-bit Analog-to-Digital
Converter (ADC)”
Updated the VREFL references in the ADC1 module block diagrams
(see Figure 21-1 and Figure 21-2).
Section 27.0 “Special Features” Added a new paragraph and removed the third paragraph in
Section 27.1 “Configuration Bits”.
Added the column “RTSP Effects” to the dsPIC33F Configuration
Bits Descriptions (see Table 27-2).
© 2007-2012 Microchip Technology Inc. DS70292G-page 423
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Section 30.0 “Electrical Characteristics” Updated the maximum value for Extended Temperature Devices in
the Thermal Operating Conditions (see Table 30-2).
Removed Note 4 from the DC Temperature and Voltage
Specifications (see Table 30-4).
Updated all typical and maximum Operating Current (IDD) values
(see Table 30-5).
Updated all typical and maximum Idle Current (IIDLE) values (see
Table 30-6).
Updated the maximum Power-Down Current (IPD) values for
parameters DC60d, DC60a, and DC60b (see Table 30-7).
Updated all typical Doze Current (Idoze) values (see Table 30-8).
Updated the maximum value for parameter DI19 and added
parameters DI28, DI29, DI60a, DI60b, and DI60c to the I/O Pin Input
Specifications (see Table 30-9).
Removed Note 2 from the AC Characteristics: Internal RC Accuracy
(see Table 30-18).
Added Note 2 to the PLL Clock Timing Specifications
(see Table 30-17)
Updated the Internal RC Accuracy minimum and maximum values
for parameter F21b (see Table 30-19).
Updated the characteristic description for parameter DI35 in the I/O
Timing Requirements (see Table 30-20).
Updated all SPI specifications (see Table 30-28 through Table 30-35
and Figure 30-9 through Figure 30-16)
Updated the ADC Module Specification minimum values for
parameters AD05 and AD07, and updated the maximum value for
parameter AD06 (see Table 30-41).
Updated the ADC Module Specifications (12-bit Mode) minimum and
maximum values for parameter AD21a (see Table 30-42).
Updated all ADC Module Specifications (10-bit Mode) values, with
the exception of Dynamic Performance (see Table 30-43).
Updated the minimum value for parameter PM6 and the maximum
value for parameter PM7 in the Parallel Master Port Read Timing
Requirements (see Table 30-52).
Added DMA Read/Write Timing Requirements (see Table 30-54).
TABLE A-4: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 424 © 2007-2012 Microchip Technology Inc.
Section 31.0 “High Temperature Electrical
Characteristics”
Updated all ambient temperature end range values to +150ºC
throughout the chapter.
Updated the storage temperature end range to +160ºC.
Updated the maximum junction temperature from +145ºC to +155ºC.
Updated the maximum values for High Temperature Devices in the
Thermal Operating Conditions (see Table 31-2).
Updated the ADC Module Specifications (12-bit Mode) (see
Table 31-14).
Updated the ADC Module Specifications (10-bit Mode) (see
Table 31-15).
“Product Identification System” Updated the end range temperature value for H (High) devices.
TABLE A-4: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
© 2007-2012 Microchip Technology Inc. DS70292G-page 425
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Revision F (August 2011)
This revision includes typographical and formatting
changes throughout the data sheet text.
All other major changes are referenced by their
respective section in the following table.
Revision G (April 2012)
This revision includes typographical and formatting
changes throughout the data sheet text.
In addition, where applicable, new sections were added
to each peripheral chapter that provide information and
links to related resources, as well as helpful tips. For
examples, see Section 9.2 “Oscillator Resources”
and Section 21.4 “ADC Helpful Tips”.
All other major changes are referenced by their
respective section in the following table.
TABLE A-5: MAJOR SECTION UPDATES
Section Name Update Description
Section 2.0 “Guidelines for Getting Started
with 16-bit Digital Signal Controllers”
Updated the Recommendation Minimum Connection (see
Figure 2-1).
Section 27.0 “Special Features” Added Note 3 to the Connections for the On-chip Voltage Regulator
diagram (see Figure 27-1).
Section 30.0 “Electrical Characteristics” Removed Voltage on VCAP with respect to Vss from the Absolute
Maximum Ratings.
Removed Note 3 and parameter DC10 (VCORE) from the DC
Temperature and Voltage Specifications (see Table 30-4).
Updated the Characteristics definition and Conditions for parameter
BO10 in the Electrical Characteristics: BOR (see Table 30-11).
Added Note 1 to the Internal Voltage Regulator Specifications (see
Table 30-13).
TABLE A-6: MAJOR SECTION UPDATES
Section Name Update Description
Section 2.0 “Guidelines for Getting Started
with 16-bit Digital Signal Controllers”
Added two new tables:
• Crystal Recommendations (see Table 2-1)
• Resonator Recommendations (see Table 2-2)
Section 30.0 “Electrical Characteristics” Updated parameters DO10 and DO20 and removed parameters
DO16 and DO26 in the DC Characteristics: I/O Pin Output
Specifications (see Table 30-10)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 426 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 427
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
INDEX
A
AC Characteristics .................................................... 349, 396
ADC Module.............................................................. 399
ADC Module (10-bit Mode) ....................................... 400
ADC Module (12-bit Mode) ....................................... 399
Internal RC Accuracy ................................................ 351
Load Conditions ................................................ 349, 396
Alternate Interrupt Vector Table (AIVT) .............................. 87
Analog-to-Digital Converter............................................... 263
ADC1 Register Map .................................................... 49
DMA .......................................................................... 263
Initialization ............................................................... 263
Key Features............................................................. 263
Arithmetic Logic Unit (ALU)................................................. 30
Assembler
MPASM Assembler................................................... 334
B
Barrel Shifter ....................................................................... 34
Bit-Reversed Addressing .................................................... 64
Example ...................................................................... 65
Implementation ........................................................... 64
Sequence Table (16-Entry)......................................... 65
Block Diagrams
16-bit Timer1 Module ................................................ 189
ADC1 Module.................................................... 264, 265
Connections for On-Chip Voltage Regulator............. 319
DCI Module ............................................................... 255
Device Clock ..................................................... 141, 143
DSP Engine ................................................................ 31
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 .......................... 14
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04,
and dsPIC33FJ128GPX02/X04 CPU Core......... 24
ECAN Module ........................................................... 229
Input Capture ............................................................ 199
Output Compare ....................................................... 203
PLL............................................................................ 143
Reset System.............................................................. 77
Shared Port Structure ............................................... 159
SPI ............................................................................ 207
Timer2 (16-bit) .......................................................... 193
Timer2/3 (32-bit) ....................................................... 195
UART ........................................................................ 221
Watchdog Timer (WDT) ............................................ 320
C
C Compilers
MPLAB C18 .............................................................. 334
Clock Switching................................................................. 151
Enabling .................................................................... 151
Sequence.................................................................. 151
Code Examples
Erasing a Program Memory Page............................... 75
Initiating a Programming Sequence............................ 76
Loading Write Buffers ................................................. 76
Port Write/Read ........................................................ 160
PWRSAV Instruction Syntax..................................... 153
Code Protection ........................................................ 315, 321
Comparator Module .......................................................... 277
Configuration Bits.............................................................. 315
Configuration Register Map .............................................. 315
Configuring Analog Port Pins............................................ 160
CPU
Control Register .......................................................... 27
CPU Clocking System ...................................................... 142
PLL Configuration..................................................... 143
Selection................................................................... 142
Sources .................................................................... 142
Customer Change Notification Service............................. 431
Customer Notification Service .......................................... 431
Customer Support............................................................. 431
D
Data Accumulators and Adder/Subtracter .......................... 32
Data Space Write Saturation ...................................... 34
Overflow and Saturation ............................................. 32
Round Logic ............................................................... 33
Write Back .................................................................. 33
Data Address Space........................................................... 37
Alignment.................................................................... 37
Memory Map for dsPIC33FJ128GP202/204
and dsPIC33FJ64GP202/204
Devices with 8 KB RAM...................................... 39
Memory Map for dsPIC33FJ128GP802/804
and dsPIC33FJ64GP802/804
Devices with 16 KB RAM.................................... 40
Memory Map for dsPIC33FJ32GP302/304 Devices
with 4 KB RAM ................................................... 38
Near Data Space ........................................................ 37
Software Stack ........................................................... 61
Width .......................................................................... 37
Data Converter Interface (DCI) Module ............................ 255
DC and AC Characteristics
Graphs and Tables ................................................... 403
DC Characteristics............................................................ 338
Doze Current (IDOZE)................................................ 393
High Temperature..................................................... 392
I/O Pin Input Specifications ...................................... 344
I/O Pin Output Specifications............................ 347, 394
Idle Current (IDOZE) .................................................. 343
Idle Current (IIDLE) .................................................... 341
Operating Current (IDD) ............................................ 340
Operating MIPS vs. Voltage ..................................... 392
Power-Down Current (IPD)........................................ 342
Power-down Current (IPD) ........................................ 393
Program Memory.............................................. 348, 395
Temperature and Voltage......................................... 392
Temperature and Voltage Specifications.................. 339
Thermal Operating Conditions.................................. 392
DCI
Introduction............................................................... 255
DCI Module
Register Map .............................................................. 54
Development Support....................................................... 333
DMA Module
DMA Register Map ..................................................... 50
DMAC Registers............................................................... 131
DMAxCNT ................................................................ 131
DMAxCON................................................................ 131
DMAxPAD ................................................................ 131
DMAxREQ ................................................................ 131
DMAxSTA................................................................. 131
DMAxSTB................................................................. 131
Doze Mode ....................................................................... 154
DSP Engine ........................................................................ 30
Multiplier ..................................................................... 32
E
ECAN Module
CiBUFPNT1 register................................................. 241
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 428 © 2007-2012 Microchip Technology Inc.
CiBUFPNT2 register ................................................. 242
CiBUFPNT3 register ................................................. 242
CiBUFPNT4 register ................................................. 243
CiCFG1 register ........................................................ 239
CiCFG2 register ........................................................ 240
CiCTRL1 register ...................................................... 232
CiCTRL2 register ...................................................... 233
CiEC register............................................................. 239
CiFCTRL register ...................................................... 235
CiFEN1 register ........................................................ 241
CiFIFO register ......................................................... 236
CiFMSKSEL1 register............................................... 245
CiFMSKSEL2 register............................................... 246
CiINTE register ......................................................... 238
CiINTF register.......................................................... 237
CiRXFnEID register .................................................. 245
CiRXFnSID register .................................................. 244
CiRXFUL1 register .................................................... 248
CiRXFUL2 register .................................................... 248
CiRXMnEID register.................................................. 247
CiRXMnSID register.................................................. 247
CiRXOVF1 register ................................................... 249
CiRXOVF2 register ................................................... 249
CiTRmnCON register................................................ 250
CiVEC register .......................................................... 234
ECAN1 Register Map (C1CTRL1.WIN = 0 or 1) ......... 52
ECAN1 Register Map (C1CTRL1.WIN = 0) ................ 52
ECAN1 Register Map (C1CTRL1.WIN = 1) ................ 53
Frame Types............................................................. 228
Modes of Operation .................................................. 230
Overview ................................................................... 227
ECAN Registers
Acceptance Filter Enable Register (CiFEN1)............ 241
Acceptance Filter Extended Identifier Register n
(CiRXFnEID) ..................................................... 245
Acceptance Filter Mask Extended Identifier Register n
(CiRXMnEID) .................................................... 247
Acceptance Filter Mask Standard Identifier Register n
(CiRXMnSID) .................................................... 247
Acceptance Filter Standard Identifier Register n
(CiRXFnSID) ..................................................... 244
Baud Rate Configuration Register 1 (CiCFG1) ......... 239
Baud Rate Configuration Register 2 (CiCFG2) ......... 240
Control Register 1 (CiCTRL1) ................................... 232
Control Register 2 (CiCTRL2) ................................... 233
FIFO Control Register (CiFCTRL) ............................ 235
FIFO Status Register (CiFIFO) ................................. 236
Filter 0-3 Buffer Pointer Register (CiBUFPNT1) ....... 241
Filter 12-15 Buffer Pointer Register (CiBUFPNT4) ... 243
Filter 15-8 Mask Selection Register (CiFMSKSEL2). 246
Filter 4-7 Buffer Pointer Register (CiBUFPNT2) ....... 242
Filter 7-0 Mask Selection Register (CiFMSKSEL1)... 245
Filter 8-11 Buffer Pointer Register (CiBUFPNT3) ..... 242
Interrupt Code Register (CiVEC) .............................. 234
Interrupt Enable Register (CiINTE) ........................... 238
Interrupt Flag Register (CiINTF) ............................... 237
Receive Buffer Full Register 1 (CiRXFUL1).............. 248
Receive Buffer Full Register 2 (CiRXFUL2).............. 248
Receive Buffer Overflow Register 2 (CiRXOVF2)..... 249
Receive Overflow Register (CiRXOVF1) .................. 249
ECAN Transmit/Receive Error Count Register (CiEC) ..... 239
ECAN TX/RX Buffer m Control Register (CiTRmnCON) .. 250
Electrical Characteristics................................................... 337
AC ..................................................................... 349, 396
Enhanced CAN Module..................................................... 227
Equations
Device Operating Frequency .................................... 142
Errata .................................................................................. 11
F
Flash Program Memory ...................................................... 71
Control Registers........................................................ 72
Operations .................................................................. 72
Programming Algorithm .............................................. 75
RTSP Operation ......................................................... 72
Table Instructions ....................................................... 71
Flexible Configuration ....................................................... 315
H
High Temperature Electrical Characteristics .................... 391
I
I/O Ports............................................................................ 159
Parallel I/O (PIO) ...................................................... 159
Write/Read Timing .................................................... 160
I2C
Operating Modes ...................................................... 213
Registers .................................................................. 215
In-Circuit Debugger........................................................... 321
In-Circuit Emulation .......................................................... 315
In-Circuit Serial Programming (ICSP)....................... 315, 321
Input Capture .................................................................... 199
Registers .................................................................. 201
Input Change Notification ................................................. 160
Instruction Addressing Modes ............................................ 61
File Register Instructions ............................................ 61
Fundamental Modes Supported ................................. 62
MAC Instructions ........................................................ 62
MCU Instructions ........................................................ 61
Move and Accumulator Instructions............................ 62
Other Instructions ....................................................... 62
Instruction Set
Overview................................................................... 328
Summary .................................................................. 325
Instruction-Based Power-Saving Modes........................... 153
Idle............................................................................ 154
Sleep ........................................................................ 153
Internal RC Oscillator
Use with WDT........................................................... 320
Internet Address ............................................................... 431
Interrupt Control and Status Registers ............................... 91
IECx............................................................................ 91
IFSx ............................................................................ 91
INTCON1.................................................................... 91
INTCON2.................................................................... 91
IPCx............................................................................ 91
Interrupt Setup Procedures............................................... 127
Initialization............................................................... 127
Interrupt Disable ....................................................... 127
Interrupt Service Routine.......................................... 127
Trap Service Routine ................................................ 127
Interrupt Vector Table (IVT) ................................................ 87
Interrupts Coincident with Power Save Instructions ......... 154
J
JTAG Boundary Scan Interface ........................................ 315
JTAG Interface.................................................................. 321
M
Memory Organization ......................................................... 35
Microchip Internet Web Site.............................................. 431
Modes of Operation
Disable...................................................................... 230
Initialization............................................................... 230
© 2007-2012 Microchip Technology Inc. DS70292G-page 429
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
Listen All Messages .................................................. 230
Listen Only ................................................................ 230
Loopback .................................................................. 230
Normal Operation...................................................... 230
Modulo Addressing ............................................................. 63
Applicability ................................................................. 64
Operation Example ..................................................... 63
Start and End Address................................................ 63
W Address Register Selection .................................... 63
MPLAB ASM30 Assembler, Linker, Librarian ................... 334
MPLAB Integrated Development Environment Software .. 333
MPLAB PM3 Device Programmer .................................... 336
MPLAB REAL ICE In-Circuit Emulator System................. 335
MPLINK Object Linker/MPLIB Object Librarian ................ 334
N
NVM Module
Register Map............................................................... 60
O
Open-Drain Configuration ................................................. 160
Output Compare ............................................................... 203
P
Packaging ......................................................................... 407
Marking ..................................................................... 407
Peripheral Module Disable (PMD) .................................... 154
Pinout I/O Descriptions (table) ............................................ 15
PMD Module
Register Map............................................................... 60
PORTA
Register Map......................................................... 58, 59
PORTB
Register Map............................................................... 59
Power-on Reset (POR) ....................................................... 83
Power-Saving Features .................................................... 153
Clock Frequency and Switching................................ 153
Program Address Space..................................................... 35
Construction................................................................ 66
Data Access from Program Memory Using
Program Space Visibility..................................... 69
Data Access from Program Memory Using
Table Instructions ............................................... 68
Data Access from, Address Generation...................... 67
Memory Map ............................................................... 35
Table Read Instructions
TBLRDH ............................................................. 68
TBLRDL .............................................................. 68
Visibility Operation ...................................................... 69
Program Memory
Interrupt Vector ........................................................... 36
Organization................................................................ 36
Reset Vector ............................................................... 36
R
Reader Response ............................................................. 432
Register Map
CRC ............................................................................ 58
Dual Comparator......................................................... 58
Parallel Master/Slave Port .......................................... 57
Real-Time Clock and Calendar................................... 58
Registers
AD1CHS0 (ADC1 Input Channel 0 Select ................ 274
AD1CHS123 (ADC1 Input Channel 1, 2, 3 Select) ... 273
AD1CON1 (ADC1 Control 1) .................................... 268
AD1CON2 (ADC1 Control 2) .................................... 270
AD1CON3 (ADC1 Control 3) .................................... 271
AD1CON4 (ADC1 Control 4) .................................... 272
AD1CSSL (ADC1 Input Scan Select Low) ............... 275
AD1PCFGL (ADC1 Port Configuration Low) ............ 275
CiBUFPNT1 (ECAN Filter 0-3 Buffer Pointer) .......... 241
CiBUFPNT2 (ECAN Filter 4-7 Buffer Pointer) .......... 242
CiBUFPNT3 (ECAN Filter 8-11 Buffer Pointer) ........ 242
CiBUFPNT4 (ECAN Filter 12-15 Buffer Pointer) ...... 243
CiCFG1 (ECAN Baud Rate Configuration 1)............ 239
CiCFG2 (ECAN Baud Rate Configuration 2)............ 240
CiCTRL1 (ECAN Control 1)...................................... 232
CiCTRL2 (ECAN Control 2)...................................... 233
CiEC (ECAN Transmit/Receive Error Count) ........... 239
CiFCTRL (ECAN FIFO Control) ............................... 235
CiFEN1 (ECAN Acceptance Filter Enable)............... 241
CiFIFO (ECAN FIFO Status) .................................... 236
CiFMSKSEL1 (ECAN Filter 7-0 Mask Selection) .... 245,
246
CiINTE (ECAN Interrupt Enable) .............................. 238
CiINTF (ECAN Interrupt Flag) .................................. 237
CiRXFnEID (ECAN Acceptance Filter n
Extended Identifier) .......................................... 245
CiRXFnSID (ECAN Acceptance Filter n
Standard Identifier) ........................................... 244
CiRXFUL1 (ECAN Receive Buffer Full 1)................. 248
CiRXFUL2 (ECAN Receive Buffer Full 2)................. 248
CiRXMnEID (ECAN Acceptance Filter Mask n
Extended Identifier) .......................................... 247
CiRXMnSID (ECAN Acceptance Filter Mask n
Standard Identifier) ........................................... 247
CiRXOVF1 (ECAN Receive Buffer Overflow 1)........ 249
CiRXOVF2 (ECAN Receive Buffer Overflow 2)........ 249
CiTRBnSID (ECAN Buffer n Standard Identifier)..... 251,
252, 254
CiTRmnCON (ECAN TX/RX Buffer m Control) ........ 250
CiVEC (ECAN Interrupt Code) ................................. 234
CLKDIV (Clock Divisor) ............................................ 147
CORCON (Core Control)...................................... 29, 92
DCICON1 (DCI Control 1) ........................................ 257
DCICON2 (DCI Control 2) ........................................ 258
DCICON3 (DCI Control 3) ........................................ 259
DCISTAT (DCI Status) ............................................. 260
DMACS0 (DMA Controller Status 0) ........................ 136
DMACS1 (DMA Controller Status 1) ........................ 138
DMAxCNT (DMA Channel x Transfer Count) ........... 135
DMAxCON (DMA Channel x Control)....................... 132
DMAxPAD (DMA Channel x Peripheral Address) .... 135
DMAxREQ (DMA Channel x IRQ Select) ................. 133
DMAxSTA (DMA Channel x RAM Start Address A) . 134
DMAxSTB (DMA Channel x RAM Start Address B) . 134
DSADR (Most Recent DMA RAM Address) ............. 139
I2CxCON (I2Cx Control)........................................... 216
I2CxMSK (I2Cx Slave Mode Address Mask)............ 220
I2CxSTAT (I2Cx Status) ........................................... 218
IFS0 (Interrupt Flag Status 0) ............................. 96, 103
IFS1 (Interrupt Flag Status 1) ............................. 98, 105
IFS2 (Interrupt Flag Status 2) ........................... 100, 107
IFS3 (Interrupt Flag Status 3) ........................... 101, 108
IFS4 (Interrupt Flag Status 4) ........................... 102, 109
INTCON1 (Interrupt Control 1) ................................... 93
INTCON2 (Interrupt Control 2) ................................... 95
INTTREG Interrupt Control and Status Register ...... 126
IPC0 (Interrupt Priority Control 0) ............................. 110
IPC1 (Interrupt Priority Control 1) ............................. 111
IPC11 (Interrupt Priority Control 11) ......................... 120
IPC14 (Interrupt Priority Control 14) ......................... 121
IPC15 (Interrupt Priority Control 15) ......................... 122
IPC16 (Interrupt Priority Control 16) ......................... 123
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 430 © 2007-2012 Microchip Technology Inc.
IPC17 (Interrupt Priority Control 17) ......................... 124
IPC18 (Interrupt Priority Control 18) ......................... 125
IPC2 (Interrupt Priority Control 2) ............................. 112
IPC3 (Interrupt Priority Control 3) ............................. 113
IPC4 (Interrupt Priority Control 4) ............................. 114
IPC5 (Interrupt Priority Control 5) ............................. 115
IPC6 (Interrupt Priority Control 6) ............................. 116
IPC7 (Interrupt Priority Control 7) ............................. 117
IPC8 (Interrupt Priority Control 8) ............................. 118
IPC9 (Interrupt Priority Control 9) ............................. 119
NVMCON (Flash Memory Control) ............................. 73
NVMKEY (Nonvolatile Memory Key) .......................... 74
OCxCON (Output Compare x Control) ..................... 206
OSCCON (Oscillator Control) ................................... 145
OSCTUN (FRC Oscillator Tuning) ............................ 149
PLLFBD (PLL Feedback Divisor) .............................. 148
PMD1 (Peripheral Module Disable
Control Register 1)............................................ 156
PMD2 (Peripheral Module Disable
Control Register 2)............................................ 157
PMD3 (Peripheral Module Disable
Control Register 3)............................................ 158
PxTCON (PWM Time Base Control)......... 280, 281, 282
RCON (Reset Control) ................................................ 79
RSCON (DCI Receive Slot Control).......................... 261
SPIxCON1 (SPIx Control 1) ...................................... 210
SPIxCON2 (SPIx Control 2) ...................................... 212
SPIxSTAT (SPIx Status and Control) ....................... 209
SR (CPU Status)................................................... 27, 92
T1CON (Timer1 Control)........................................... 191
TCxCON (Input Capture x Control) ........................... 201
TSCON (DCI Transmit Slot Control) ......................... 261
TxCON (Type B Time Base Control) ........................ 196
TyCON (Type C Time Base Control) ........................ 197
UxMODE (UARTx Mode).......................................... 223
UxSTA (UARTx Status and Control)......................... 225
Reset
Illegal Opcode ....................................................... 77, 85
Trap Conflict.......................................................... 84, 85
Uninitialized W Register........................................ 77, 85
Reset Sequence.................................................................. 87
Resets ................................................................................. 77
S
Serial Peripheral Interface (SPI) ....................................... 207
Software Reset Instruction (SWR) ...................................... 84
Software Simulator (MPLAB SIM)..................................... 335
Software Stack Pointer, Frame Pointer
CALLL Stack Frame.................................................... 61
Special Features of the CPU............................................. 315
SPI Module
SPI1 Register Map...................................................... 48
Symbols Used in Opcode Descriptions............................. 326
System Control
Register Map............................................................... 60
T
Temperature and Voltage Specifications
AC ..................................................................... 349, 396
Timer1 ............................................................................... 189
Timer2/3 ............................................................................ 193
Timing Characteristics
CLKO and I/O ........................................................... 352
Timing Diagrams
10-bit ADC (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 0,
SSRC<2:0> = 000) ........................................... 385
10-bit ADC (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111,
SAMC<4:0> = 00001)....................................... 385
12-bit ADC (ASAM = 0,
SSRC<2:0> = 000) ........................................... 383
Brown-out Situations................................................... 84
DCI AC-Link Mode.................................................... 377
DCI Multi -Channel, I2S Modes................................. 375
ECAN I/O.................................................................. 379
External Clock........................................................... 350
I2Cx Bus Data (Master Mode) .................................. 371
I2Cx Bus Data (Slave Mode) .................................... 373
I2Cx Bus Start/Stop Bits (Master Mode)................... 371
I2Cx Bus Start/Stop Bits (Slave Mode)..................... 373
Input Capture (CAPx) ............................................... 357
OC/PWM................................................................... 358
Output Compare (OCx)............................................. 357
Reset, Watchdog Timer, Oscillator Start-up Timer
and Power-up Timer ......................................... 353
Timer1, 2 and 3 External Clock ................................ 355
Timing Requirements
ADC Conversion (10-bit mode)................................. 401
ADC Conversion (12-bit Mode)................................. 401
CLKO and I/O ........................................................... 352
DCI AC-Link Mode.................................................... 378
DCI Multi-Channel, I2S Modes.................................. 376
External Clock........................................................... 350
Input Capture ............................................................ 357
SPIx Master Mode (CKE = 0) ................................... 397
SPIx Module Master Mode (CKE = 1) ...................... 397
SPIx Module Slave Mode (CKE = 0) ........................ 398
SPIx Module Slave Mode (CKE = 1) ........................ 398
Timing Specifications
10-bit ADC Conversion Requirements...................... 386
12-bit ADC Conversion Requirements...................... 384
CAN I/O Requirements ............................................. 379
I2Cx Bus Data Requirements (Master Mode)........... 372
I2Cx Bus Data Requirements (Slave Mode)............. 374
Output Compare Requirements................................ 357
PLL Clock ......................................................... 351, 396
QEI External Clock Requirements ............................ 356
QEI Index Pulse Requirements ................................ 358
Reset, Watchdog Timer, Oscillator Start-up Timer,
Power-up Timer and Brown-out
Reset Requirements......................................... 354
Simple OC/PWM Mode Requirements ..................... 358
Timer1 External Clock Requirements ....................... 355
Timer2 External Clock Requirements ....................... 356
Timer3 External Clock Requirements ....................... 356
U
UART Module
UART1 Register Map............................................ 47, 48
Universal Asynchronous Receiver Transmitter (UART) ... 221
Using the RCON Status Bits............................................... 85
V
Voltage Regulator (On-Chip) ............................................ 319
W
Watchdog Time-out Reset (WDTR).................................... 84
Watchdog Timer (WDT)............................................ 315, 320
Programming Considerations ................................... 320
WWW Address ................................................................. 431
WWW, On-Line Support ..................................................... 11
© 2007-2012 Microchip Technology Inc. DS70292G-page 431
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
THE MICROCHIP WEB SITE
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Customers should contact their distributor,
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Technical support is available through the web site
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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 432 © 2007-2012 Microchip Technology Inc.
READER RESPONSE
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip
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DS70292GdsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, and
dsPIC33FJ128GPX02/X04
1. What are the best features of this document?
2. How does this document meet your hardware and software development needs?
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© 2007-2012 Microchip Technology Inc. DS70292G-page 433
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Architecture: 33 = 16-bit Digital Signal Controller
Flash Memory Family: FJ = Flash program memory, 3.3V
Product Group: GP2 = General Purpose family
GP3 = General Purpose family
GP8 = General Purpose family
Pin Count: 02 = 28-pin
04 = 44-pin
Temperature Range: I = -40°C to+85°C (Industrial)
E=-40°C to+125°C (Extended)
H=-40°C to+150°C (High)
Package: SP = Skinny Plastic Dual In-Line - 300 mil body (SPDIP)
SO = Plastic Small Outline - Wide - 7.5 mil body (SOIC)
ML = Plastic Quad, No Lead Package - 8x8 mm body (QFN)
MM = Plastic Quad, No Lead Package - 6x6x0.9 mm body (QFN-S)
PT = Plastic Thin Quad Flatpack - 10x10x1 mm body (TQFP)
Examples:
a) dsPIC33FJ32GP302-E/SP:
General Purpose dsPIC33, 32 KB program
memory, 28-pin, Extended temperature,
SPDIP package.
Microchip Trademark
Architecture
Flash Memory Family
Program Memory Size (KB)
Product Group
Pin Count
Temperature Range
Package
Pattern
dsPIC 33 FJ 32 GP3 02 T E / SP - XXX
Tape and Reel Flag (if applicable)
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 434 © 2007-2012 Microchip Technology Inc.
NOTES:
© 2007-2012 Microchip Technology Inc. DS70292G-page 435
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
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OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
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intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC32 logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
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FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2007-2012, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62076-235-6
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
QUALITYMANAGEMENT
S
YSTEM
CERTIFIEDBYDNV
== ISO/TS16949==
DS70292G-page 436 © 2007-2012 Microchip Technology Inc.
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Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
ASIA/PACIFIC
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
China - Hangzhou
Tel: 86-571-2819-3187
Fax: 86-571-2819-3189
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
ASIA/PACIFIC
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
Japan - Osaka
Tel: 81-66-152-7160
Fax: 81-66-152-9310
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-330-9305
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
EUROPE
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Worldwide Sales and Service
11/29/11
