© 2009 Microchip Technology Inc. DS70286C
dsPIC33FJXXXGPX06/X08/X10
Data Sheet
High-Performance,
16-Bit Digital Signal Controllers
DS70286C-page ii © 2009 Microchip Technology Inc.
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and may be superseded by updates.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
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor 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, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, nanoWatt XLP,
PICkit, PICDEM, PICDEM.net, PICtail, PIC32 logo, PowerCal,
PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select
Mode, Total Endurance, TSHARC, 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.
© 2009, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
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-16949:2002 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.
© 2009 Microchip Technology Inc. DS70286C-page 1
dsPIC33FJXXXGPX06/X08/X10
Operating Range:
Up to 40 MIPS operation (at 3.0-3.6V):
- Industrial temperature range
(-40°C to +85°C)
High-Performance DSC CPU:
Modified Harvard architecture
C compiler optimized instruction set
16-bit wide data path
24-bit wide instructions
Linear program memory addressing up to 4M
instruction words
Linear data memory addressing up to 64 Kbytes
83 base instructions: mostly 1 word/1 cycle
Sixteen 16-bit General Purpose Registers
Two 40-bit accumulators:
- With rounding and saturation options
Flexible and powerful addressing modes:
- Indirect, Modulo and Bit-Reversed
Software stack
16 x 16 fractional/integer multiply operations
32/16 and 16/16 divide operations
Single-cycle multiply and accumulate:
- Accumulator write back for DSP operations
- Dual data fetch
Up to ±16-bit shifts for up to 40-bit data
Direct Memory Access (DMA):
8-channel hardware DMA:
2 Kbytes dual ported DMA buffer area
(DMA RAM) to store data transferred via DMA:
- Allows data transfer between RAM and a
peripheral while CPU is executing code
(no cycle stealing)
Most peripherals support DMA
Interrupt Controller:
5-cycle latency
Up to 63 available interrupt sources
Up to five external interrupts
Seven programmable priority levels
Five processor exceptions
Digital I/O:
Up to 85 programmable digital I/O pins
Wake-up/Interrupt-on-Change on up to 24 pins
Output pins can drive from 3.0V to 3.6V
All digital input pins are 5V tolerant
4 mA sink on all I/O pins
On-Chip Flash and SRAM:
Flash program memory, up to 256 Kbytes
Data SRAM, up to 30 Kbytes (includes 2 Kbytes
of DMA RAM):
System Management:
Flexible clock options:
- External, crystal, resonator, internal RC
- Fully integrated PLL
- Extremely low jitter PLL
Power-up Timer
Oscillator Start-up Timer/Stabilizer
Watchdog Timer with its own RC oscillator
Fail-Safe Clock Monitor
Reset by multiple sources
Power Management:
On-chip 2.5V voltage regulator
Switch between clock sources in real time
Idle, Sleep and Doze modes with fast wake-up
Timers/Capture/Compare/PWM:
Timer/Counters, up to nine 16-bit timers:
- Can pair up to make four 32-bit timers
- 1 timer runs as Real-Time Clock with external
32.768 kHz oscillator
- Programmable prescaler
Input Capture (up to eight channels):
- Capture on up, down or both edges
- 16-bit capture input functions
- 4-deep FIFO on each capture
Output Compare (up to eight channels):
- Single or Dual 16-Bit Compare mode
- 16-bit Glitchless PWM mode
High-Performance, 16-Bit Digital Signal Controllers
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 2 © 2009 Microchip Technology Inc.
Communication Modules:
3-wire SPI (up to two modules):
- Framing supports I/O interface to simple
codecs
- Supports 8-bit and 16-bit data
- Supports all serial clock formats and
sampling modes
•I
2C™ (up to two modules):
- Full Multi-Master Slave mode support
- 7-bit and 10-bit addressing
- Bus collision detection and arbitration
- Integrated signal conditioning
- Slave address masking
UART (up to two modules):
- Interrupt on address bit detect
- Interrupt on UART error
- Wake-up on Start bit from Sleep mode
- 4-character TX and RX FIFO buffers
- LIN bus support
-IrDA
® encoding and decoding in hardware
- High-Speed Baud mode
- Hardware Flow Control with CTS and RTS
Data Converter Interface (DCI) module:
- Codec interface
- Supports I2S and AC’97 protocols
- Up to 16-bit data words, up to 16 words per
frame
- 4-word deep TX and RX buffers
Enhanced CAN (ECAN™ module) 2.0B active
(up to 2 modules):
- Up to eight transmit and up to 32 receive buffers
- 16 receive filters and three masks
- Loopback, Listen Only and Listen All
Messages modes for diagnostics and bus
monitoring
- Wake-up on CAN message
- Automatic processing of Remote
Transmission Requests
- FIFO mode using DMA
- DeviceNet™ addressing support
Analog-to-Digital Converters (ADCs):
Up to two ADC modules in a device
10-bit, 1.1 Msps or 12-bit, 500 ksps conversion:
- Two, four or eight simultaneous samples
- Up to 32 input channels with auto-scanning
- Conversion start can be manual or
synchronized with one of four trigger sources
- Conversion possible in Sleep mode
- ±1 LSb max integral nonlinearity
- ±1 LSb max differential nonlinearity
CMOS Flash Technology:
Low-power, high-speed Flash technology
Fully static design
3.3V (±10%) operating voltage
Industrial temperature
Low-power consumption
Packaging:
100-pin TQFP (14x14x1 mm and 12x12x1 mm)
80-pin TQFP (12x12x1 mm)
64-pin TQFP (10x10x1 mm)
Note: See the device variant tables for exact
peripheral features per device.
© 2009 Microchip Technology Inc. DS70286C-page 3
dsPIC33FJXXXGPX06/X08/X10
dsPIC33F PRODUCT FAMILIES
The dsPIC33F General Purpose Family of devices
are ideal for a wide variety of 16-bit MCU embedded
applications. The controllers with codec interfaces are
well-suited for speech and audio processing
applications.
The device names, pin counts, memory sizes and
peripheral availability of each family are listed below,
followed by their pinout diagrams.
dsPIC33F General Purpose Family Controllers
Device Pins
Program
Flash
Memory
(Kbyte)
RAM
(Kbyte)(1)
16-bit Timer
Input Capture
Output Compare
Std. PWM
Codec
Interface
ADC
UART
SPI
I2C™
Enhanced
CAN™
I/O Pins (Max)(2)
Packages
dsPIC33FJ64GP206 64 64 8 9 8 8 1 1 ADC, 18
ch
221 053 PT
dsPIC33FJ64GP306 64 64 16 9 8 8 1 1 ADC, 18
ch
222 053 PT
dsPIC33FJ64GP310 100 64 16 9 8 8 1 1 ADC, 32
ch
222 085PF, PT
dsPIC33FJ64GP706 64 64 16 9 8 8 1 2 ADC, 18
ch
222 253 PT
dsPIC33FJ64GP708 80 64 16 9 8 8 1 2 ADC, 24
ch
222 269 PT
dsPIC33FJ64GP710 100 64 16 9 8 8 1 2 ADC, 32
ch
222 285PF, PT
dsPIC33FJ128GP206 64 128 8 9 8 8 1 1 ADC, 18
ch
221 053 PT
dsPIC33FJ128GP306 64 128 16 9 8 8 1 1 ADC, 18
ch
222 053 PT
dsPIC33FJ128GP310 100 128 16 9 8 8 1 1 ADC, 32
ch
222 085PF, PT
dsPIC33FJ128GP706 64 128 16 9 8 8 1 2 ADC, 18
ch
222 253 PT
dsPIC33FJ128GP708 80 128 16 9 8 8 1 2 ADC, 24
ch
222 269 PT
dsPIC33FJ128GP710 100 128 16 9 8 8 1 2 ADC, 32
ch
222 285PF, PT
dsPIC33FJ256GP506 64 256 16 9 8 8 1 1 ADC, 18
ch
222 153 PT
dsPIC33FJ256GP510 100 256 16 9 8 8 1 1 ADC, 32
ch
222 185PF, PT
dsPIC33FJ256GP710 100 256 30 9 8 8 1 2 ADC, 32
ch
222 285PF, PT
Note 1: RAM size is inclusive of 2 Kbytes DMA RAM.
2: Maximum I/O pin count includes pins shared by the peripheral functions.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 4 © 2009 Microchip Technology Inc.
Pin Diagrams
64-Pin TQFP
1
2
3
4
5
6
7
8
9
10
11
12
13 36
35
34
33
32
31
30
29
28
27
26
64
63
62
61
60
59
58
57
56
14
15
16
17
18
19
20
21
22
23
24
25
PGEC2/SOSCO/T1CK/CN0/RC14
PGED2/SOSCI/T4CK/CN1/RC13
OC1/RD0
IC4/INT4/RD11
IC2/U1CTS/INT2/RD9
IC1/INT1/RD8
VSS
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
VDD
SCL1/RG2
U1RTS/SCK1/INT0/RF6
U1RX/SDI1/RF2
U1TX/SDO1/RF3
COFS/RG15
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
SCK2/CN8/RG6
SDI2/CN9/RG7
SDO2/CN10/RG8
MCLR
VSS
VDD
AN3/CN5/RB3
AN2/SS1/CN4/RB2
PGEC3/AN1/VREF-/CN3/RB1
PGED3/AN0/VREF+/CN2/RB0
OC8/CN16/RD7
CSDO/RG13
CSDI/RG12
CSCK/RG14
VCAP/VDDCORE
RG1
RF1
RG0
OC2/RD1
OC3/RD2
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
AVDD
AVSS
U2CTS/AN8/RB8
AN9/RB9
TMS/AN10/RB10
TDO/AN11/RB11
VSS
VDD
TCK/AN12/RB12
TDI/AN13/RB13
U2RTS/AN14/RB14
AN15/OCFB/CN12/RB15
U2TX/CN18/RF5
U2RX/CN17/RF4
SDA1/RG3
43
42
41
40
39
38
37
44
48
47
46
50
49
51
54
53
52
55
45
SS2/CN11/RG9
AN5/IC8/CN7/RB5
AN4/IC7/CN6/RB4
IC3/INT3/RD10
VDD
RF0
OC4/RD3
OC7/CN15/RD6
OC6/IC6/CN14/RD5
OC5/IC5/CN13/RD4
dsPIC33FJ64GP206
dsPIC33FJ128GP206
= Pins are up to 5V tolerant
© 2009 Microchip Technology Inc. DS70286C-page 5
dsPIC33FJXXXGPX06/X08/X10
Pin Diagrams (Continued)
64-Pin TQFP
1
2
3
4
5
6
7
8
9
10
11
12
13 36
35
34
33
32
31
30
29
28
27
26
64
63
62
61
60
59
58
57
56
14
15
16
17
18
19
20
21
22
23
24
25
PGEC2/SOSCO/T1CK/CN0/RC14
PGED2/SOSCI/T4CK/CN1/RC13
OC1/RD0
IC4/INT4/RD11
IC2/U1CTS/INT2/RD9
IC1/INT1/RD8
VSS
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
VDD
SCL1/RG2
U1RTS/SCK1/INT0/RF6
U1RX/SDI1/RF2
U1TX/SDO1/RF3
COFS/RG15
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
SCK2/CN8/RG6
SDI2/CN9/RG7
SDO2/CN10/RG8
MCLR
VSS
VDD
AN3/CN5/RB3
AN2/SS1/CN4/RB2
PGEC3/AN1/VREF-/CN3/RB1
PGED3/AN0/VREF+/CN2/RB0
OC8/CN16/RD7
CSDO/RG13
CSDI/RG12
CSCK/RG14
VCAP/VDDCORE
RG1
RF1
RG0
OC2/RD1
OC3/RD2
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
AVDD
AVSS
U2CTS/AN8/RB8
AN9/RB9
TMS/AN10/RB10
TDO/AN11/RB11
VSS
VDD
TCK/AN12/RB12
TDI/AN13/RB13
U2RTS/AN14/RB14
AN15/OCFB/CN12/RB15
U2TX/SCL2/CN18/RF5
U2RX/SDA2/CN17/RF4
SDA1/RG3
43
42
41
40
39
38
37
44
48
47
46
50
49
51
54
53
52
55
45
SS2/CN11/RG9
AN5/IC8/CN7/RB5
AN4/IC7/CN6/RB4
IC3/INT3/RD10
VDD
RF0
OC4/RD3
OC7/CN15/RD6
OC6/IC6/CN14/RD5
OC5/IC5/CN13/RD4
dsPIC33FJ64GP306
dsPIC33FJ128GP306
= Pins are up to 5V tolerant
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 6 © 2009 Microchip Technology Inc.
Pin Diagrams (Continued)
64-Pin TQFP
1
2
3
4
5
6
7
8
9
10
11
12
13 36
35
34
33
32
31
30
29
28
27
26
64
63
62
61
60
59
58
57
56
14
15
16
17
18
19
20
21
22
23
24
25
PGEC2/SOSCO/T1CK/CN0/RC14
PGED2/SOSCI/T4CK/CN1/RC13
OC1/RD0
IC4/INT4/RD11
IC2/U1CTS/INT2/RD9
IC1/INT1/RD8
VSS
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
VDD
SCL1/RG2
U1RTS/SCK1/INT0/RF6
U1RX/SDI1/RF2
U1TX/SDO1/RF3
COFS/RG15
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
SCK2/CN8/RG6
SDI2/CN9/RG7
SDO2/CN10/RG8
MCLR
VSS
VDD
AN3/CN5/RB3
AN2/SS1/CN4/RB2
PGEC3/AN1/VREF-/CN3/RB1
PGED3/AN0/VREF+/CN2/RB0
OC8/CN16/RD7
CSDO/RG13
CSDI/RG12
CSCK/RG14
VCAP/VDDCORE
RG1
C1TX/RF1
RG0
OC2/RD1
OC3/RD2
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
AVDD
AVSS
U2CTS/AN8/RB8
AN9/RB9
TMS/AN10/RB10
TDO/AN11/RB11
VSS
VDD
TCK/AN12/RB12
TDI/AN13/RB13
U2RTS/AN14/RB14
AN15/OCFB/CN12/RB15
U2TX/SCL2/CN18/RF5
U2RX/SDA2/CN17/RF4
SDA1/RG3
43
42
41
40
39
38
37
44
48
47
46
50
49
51
54
53
52
55
45
SS2/CN11/RG9
AN5/IC8/CN7/RB5
AN4/IC7/CN6/RB4
IC3/INT3/RD10
VDD
C1RX/RF0
OC4/RD3
OC7/CN15/RD6
OC6/IC6/CN14/RD5
OC5/IC5/CN13/RD4
dsPIC33FJ256GP506
= Pins are up to 5V tolerant
© 2009 Microchip Technology Inc. DS70286C-page 7
dsPIC33FJXXXGPX06/X08/X10
Pin Diagrams (Continued)
64-Pin TQFP
1
2
3
4
5
6
7
8
9
10
11
12
13 36
35
34
33
32
31
30
29
28
27
26
64
63
62
61
60
59
58
57
56
14
15
16
17
18
19
20
21
22
23
24
25
PGEC2/SOSCO/T1CK/CN0/RC14
PGED2/SOSCI/T4CK/CN1/RC13
OC1/RD0
IC4/INT4/RD11
IC2/U1CTS/INT2/RD9
IC1/INT1/RD8
VSS
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
VDD
SCL1/RG2
U1RTS/SCK1/INT0/RF6
U1RX/SDI1/RF2
U1TX/SDO1/RF3
COFS/RG15
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
SCK2/CN8/RG6
SDI2/CN9/RG7
SDO2/CN10/RG8
MCLR
VSS
VDD
AN3/CN5/RB3
AN2/SS1/CN4/RB2
PGEC3/AN1/VREF-/CN3/RB1
PGED3/AN0/VREF+/CN2/RB0
OC8/CN16/RD7
CSDO/RG13
CSDI/RG12
CSCK/RG14
VCAP/VDDCORE
C2TX/RG1
C1TX/RF1
C2RX/RG0
OC2/RD1
OC3/RD2
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
AVDD
AVSS
U2CTS/AN8/RB8
AN9/RB9
TMS/AN10/RB10
TDO/AN11/RB11
VSS
VDD
TCK/AN12/RB12
TDI/AN13/RB13
U2RTS/AN14/RB14
AN15/OCFB/CN12/RB15
U2TX/SCL2/CN18/RF5
U2RX/SDA2/CN17/RF4
SDA1/RG3
43
42
41
40
39
38
37
44
48
47
46
50
49
51
54
53
52
55
45
SS2/CN11/RG9
AN5/IC8/CN7/RB5
AN4/IC7/CN6/RB4
IC3/INT3/RD10
VDD
C1RX/RF0
OC4/RD3
OC7/CN15/RD6
OC6/IC6/CN14/RD5
OC5/IC5/CN13/RD4
dsPIC33FJ64GP706
dsPIC33FJ128GP706
= Pins are up to 5V tolerant
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 8 © 2009 Microchip Technology Inc.
Pin Diagrams (Continued)
80-Pin TQFP
72
74
73
71
70
69
68
67
66
65
64
63
62
61
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
50
49
48
47
46
45
44
21
41
40
39
38
37
36
35
34
23
24
25
26
27
28
29
30
31
32
33
dsPIC33FJ64GP708
17
18
19
75
1
57
56
55
54
53
52
51
60
59
58
43
42
76
78
77
79
22
80
IC5/RD12
OC4/RD3
OC3/RD2
OC2/RD1
CSCK/RG14
AN23/CN23/RA7
AN22/CN22/RA6
C2RX/RG0
C2TX/RG1
C1TX/RF1
C1RX/RF0
CSDO/RG13
CSDI/RG12
OC8/CN16/RD7
OC6/CN14/RD5
OC1/RD0
IC4/RD11
IC2/RD9
IC1/RD8
IC3/RD10
V
SS
OSC1/CLKIN/RC12
V
DD
SCL1/RG2
U1RX/RF2
U1TX/RF3
PGEC2/SOSCO/T1CK/CN0/RC14
PGED2/SOSCI/CN1/RC13
V
REF
+/RA10
V
REF
-/RA9
AV
DD
AV
SS
U2CTS/AN8/RB8
AN9/RB9
AN10/RB10
AN11/RB11
V
DD
U2RX/CN17/RF4
IC8/U1RTS/CN21/RD15
U2TX/CN18/RF5
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
AN17/T3CK/T6CK/RC2
AN18/T4CK/T9CK/RC3
AN19/T5CK/T8CK/RC4
SCK2/CN8/RG6
SDI2/CN9/RG7
SDO2/CN10/RG8
MCLR
SS2/CN11/RG9
AN4/CN6/RB4
AN3/CN5/RB3
AN2/SS1/CN4/RB2
PGEC3/AN1/CN3/RB1
PGED3/AN0/CN2/RB0
V
SS
V
DD
COFS/RG15
AN16/T2CK/T7CK/RC1
TDO/AN21/INT2/RA13
TMS/AN20/INT1/RA12
TCK/AN12/RB12
TDI/AN13/RB13
U2RTS/AN14/RB14
AN15/OCFB/CN12/RB15
V
DD
V
CAP
/V
DDCORE
OC5/CN13/RD4
IC6/CN19/RD13
SDA1/RG3
SDI1/RF7
SDO1/RF8
AN5/CN7/RB5
V
SS
OSC2/CLKO/RC15
OC7/CN15/RD6
SCK1/INT0/RF6
IC7/U1CTS/CN20/RD14
SDA2/INT4/RA3
SCL2/INT3/RA2
dsPIC33FJ128GP708
= Pins are up to 5V tolerant
© 2009 Microchip Technology Inc. DS70286C-page 9
dsPIC33FJXXXGPX06/X08/X10
Pin Diagrams (Continued)
92
94
93
91
90
89
88
87
86
85
84
83
82
81
80
79
78
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
65
64
63
62
61
60
59
26
56
45
44
43
42
41
40
39
28
29
30
31
32
33
34
35
36
37
38
17
18
19
21
22
95
1
76
77
72
71
70
69
68
67
66
75
74
73
58
57
24
23
25
96
98
97
99
27
46
47
48
49
50
55
54
53
52
51
OC6/CN14/RD5
OC5/CN13/RD4
IC6/CN19/RD13
IC5/RD12
OC4/RD3
OC3/RD2
OC2/RD1
AN23/CN23/RA7
AN22/CN22/RA6
AN26/RE2
CSDO/RG13
CSDI/RG12
CSCK/RG14
AN25/RE1
AN24/RE0
RG0
AN28/RE4
AN27/RE3
RF0
V
CAP
/V
DDCORE
PGED2/SOSCI/CN1/RC13
OC1/RD0
IC3/RD10
IC2/RD9
IC1/RD8
IC4/RD11
SDA2/RA3
SCL2/RA2
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
V
DD
SCL1/RG2
SCK1/INT0/RF6
SDI1/RF7
SDO1/RF8
SDA1/RG3
U1RX/RF2
U1TX/RF3
V
SS
PGEC2/SOSCO/T1CK/CN0/RC14
V
REF
+/RA10
V
REF
-/RA9
AV
DD
AV
SS
AN8/RB8
AN9/RB9
AN10/RB10
AN11/RB11
V
DD
U2CTS/RF12
U2RTS/RF13
IC7/U1CTS/CN20/RD14
IC8/U1RTS/CN21/RD15
V
DD
V
SS
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
U2TX/CN18/RF5
U2RX/CN17/RF4
AN29/RE5
AN30/RE6
AN31/RE7
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
AN18/T4CK/T9CK/RC3
AN19/T5CK/T8CK/RC4
SCK2/CN8/RG6
V
DD
TMS/RA0
AN20/INT1/RA12
AN21/INT2/RA13
AN5/CN7/RB5
AN4/CN6/RB4
AN3/CN5/RB3
AN2/SS1/CN4/RB2
SDI2/CN9/RG7
SDO2/CN10/RG8
PGEC3/AN1/CN3/RB1
PGED3/AN0/CN2/RB0
COFS/RG15
V
DD
SS2/CN11/RG9
MCLR
AN12/RB12
AN13/RB13
AN14/RB14
AN15/OCFB/CN12/RB15
RG1
RF1
OC8/CN16/RD7
OC7/CN15/RD6
TDO/RA5
INT4/RA15
INT3/RA14
V
SS
V
SS
V
SS
V
DD
TDI/RA4
TCK/RA1
100-Pin TQFP
dsPIC33FJ64GP310
dsPIC33FJ128GP310
100
= Pins are up to 5V tolerant
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 10 © 2009 Microchip Technology Inc.
Pin Diagrams (Continued)
92
94
93
91
90
89
88
87
86
85
84
83
82
81
80
79
78
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
65
64
63
62
61
60
59
26
56
45
44
43
42
41
40
39
28
29
30
31
32
33
34
35
36
37
38
17
18
19
21
22
95
1
76
77
72
71
70
69
68
67
66
75
74
73
58
57
24
23
25
96
98
97
99
27
46
47
48
49
50
55
54
53
52
51
OC6/CN14/RD5
OC5/CN13/RD4
IC6/CN19/RD13
IC5/RD12
OC4/RD3
OC3/RD2
OC2/RD1
AN23/CN23/RA7
AN22/CN22/RA6
AN26/RE2
CSDO/RG13
CSDI/RG12
CSCK/RG14
AN25/RE1
AN24/RE0
RG0
AN28/RE4
AN27/RE3
C1RX/RF0
V
CAP
/V
DDCORE
PGED2/SOSCI/CN1/RC13
OC1/RD0
IC3/RD10
IC2/RD9
IC1/RD8
IC4/RD11
SDA2/RA3
SCL2/RA2
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
V
DD
SCL1/RG2
SCK1/INT0/RF6
SDI1/RF7
SDO1/RF8
SDA1/RG3
U1RX/RF2
U1TX/RF3
V
SS
PGEC2/SOSCO/T1CK/CN0/RC14
V
REF
+/RA10
V
REF
-/RA9
AV
DD
AV
SS
AN8/RB8
AN9/RB9
AN10/RB10
AN11/RB11
V
DD
U2CTS/RF12
U2RTS/RF13
IC7/U1CTS/CN20/RD14
IC8/U1RTS/CN21/RD15
V
DD
V
SS
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
U2TX/CN18/RF5
U2RX/CN17/RF4
AN29/RE5
AN30/RE6
AN31/RE7
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
AN18/T4CK/T9CK/RC3
AN19/T5CK/T8CK/RC4
SCK2/CN8/RG6
V
DD
TMS/RA0
AN20/INT1/RA12
AN21/INT2/RA13
AN5/CN7/RB5
AN4/CN6/RB4
AN3/CN5/RB3
AN2/SS1/CN4/RB2
SDI2/CN9/RG7
SDO2/CN10/RG8
PGEC3/AN1/CN3/RB1
PGED3/AN0/CN2/RB0
COFS/RG15
V
DD
SS2/CN11/RG9
MCLR
AN12/RB12
AN13/RB13
AN14/RB14
AN15/OCFB/CN12/RB15
RG1
C1TX/RF1
OC8/CN16/RD7
OC7/CN15/RD6
TDO/RA5
INT4/RA15
INT3/RA14
V
SS
V
SS
V
SS
V
DD
TDI/RA4
TCK/RA1
100-Pin TQFP
dsPIC33FJ256GP510
100
= Pins are up to 5V tolerant
© 2009 Microchip Technology Inc. DS70286C-page 11
dsPIC33FJXXXGPX06/X08/X10
Pin Diagrams (Continued)
92
94
93
91
90
89
88
87
86
85
84
83
82
81
80
79
78
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
65
64
63
62
61
60
59
26
56
45
44
43
42
41
40
39
28
29
30
31
32
33
34
35
36
37
38
17
18
19
21
22
95
1
76
77
72
71
70
69
68
67
66
75
74
73
58
57
24
23
25
96
98
97
99
27
46
47
48
49
50
55
54
53
52
51
OC6/CN14/RD5
OC5/CN13/RD4
IC6/CN19/RD13
IC5/RD12
OC4/RD3
OC3/RD2
OC2/RD1
AN23/CN23/RA7
AN22/CN22/RA6
AN26/RE2
CSDO/RG13
CSDI/RG12
CSCK/RG14
AN25/RE1
AN24/RE0
C2RX/RG0
AN28/RE4
AN27/RE3
C1RX/RF0
V
CAP
/V
DDCORE
PGED2/SOSCI/CN1/RC13
OC1/RD0
IC3/RD10
IC2/RD9
IC1/RD8
IC4/RD11
SDA2/RA3
SCL2/RA2
OSC2/CLKO/RC15
OSC1/CLKIN/RC12
V
DD
SCL1/RG2
SCK1/INT0/RF6
SDI1/RF7
SDO1/RF8
SDA1/RG3
U1RX/RF2
U1TX/RF3
V
SS
PGEC2/SOSCO/T1CK/CN0/RC14
V
REF
+/RA10
V
REF
-/RA9
AV
DD
AV
SS
AN8/RB8
AN9/RB9
AN10/RB10
AN11/RB11
V
DD
U2CTS/RF12
U2RTS/RF13
IC7/U1CTS/CN20/RD14
IC8/U1RTS/CN21/RD15
V
DD
V
SS
PGEC1/AN6/OCFA/RB6
PGED1/AN7/RB7
U2TX/CN18/RF5
U2RX/CN17/RF4
AN29/RE5
AN30/RE6
AN31/RE7
AN16/T2CK/T7CK/RC1
AN17/T3CK/T6CK/RC2
AN18/T4CK/T9CK/RC3
AN19/T5CK/T8CK/RC4
SCK2/CN8/RG6
V
DD
TMS/RA0
AN20/INT1/RA12
AN21/INT2/RA13
AN5/CN7/RB5
AN4/CN6/RB4
AN3/CN5/RB3
AN2/SS1/CN4/RB2
SDI2/CN9/RG7
SDO2/CN10/RG8
PGEC3/AN1/CN3/RB1
PGED3/AN0/CN2/RB0
COFS/RG15
V
DD
SS2/CN11/RG9
MCLR
AN12/RB12
AN13/RB13
AN14/RB14
AN15/OCFB/CN12/RB15
C2TX/RG1
C1TX/RF1
OC8/CN16/RD7
OC7/CN15/RD6
TDO/RA5
INT4/RA15
INT3/RA14
V
SS
V
SS
V
SS
V
DD
TDI/RA4
TCK/RA1
100-Pin TQFP
dsPIC33FJ128GP710
100
dsPIC33FJ256GP710
dsPIC33FJ64GP710
= Pins are up to 5V tolerant
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 12 © 2009 Microchip Technology Inc.
Table of Contents
dsPIC33F Product Families ................................................................................................................................................................... 3
1.0 Device Overview ........................................................................................................................................................................ 13
2.0 Guidelines for Getting Started with 16-Bit Digital Signal Controllers .......................................................................................... 17
3.0 CPU............................................................................................................................................................................................ 21
4.0 Memory Organization ................................................................................................................................................................. 33
5.0 Flash Program Memory.............................................................................................................................................................. 71
6.0 Reset ......................................................................................................................................................................................... 77
7.0 Interrupt Controller ..................................................................................................................................................................... 81
8.0 Direct Memory Access (DMA) .................................................................................................................................................. 127
9.0 Oscillator Configuration ............................................................................................................................................................ 137
10.0 Power-Saving Features............................................................................................................................................................ 147
11.0 I/O Ports ................................................................................................................................................................................... 155
12.0 Timer1 ...................................................................................................................................................................................... 157
13.0 Timer2/3, Timer4/5, Timer6/7 and Timer8/9 ............................................................................................................................ 159
14.0 Input Capture............................................................................................................................................................................ 165
15.0 Output Compare ....................................................................................................................................................................... 167
16.0 Serial Peripheral Interface (SPI)............................................................................................................................................... 171
17.0 Inter-Integrated Circuit™ (I2C™) .............................................................................................................................................. 177
18.0 Universal Asynchronous Receiver Transmitter (UART) ........................................................................................................... 185
19.0 Enhanced CAN (ECAN™) Module ........................................................................................................................................... 191
20.0 Data Converter Interface (DCI) Module.................................................................................................................................... 217
21.0 10-Bit/12-Bit Analog-to-Digital Converter (ADC) ...................................................................................................................... 225
22.0 Special Features ...................................................................................................................................................................... 237
23.0 Instruction Set Summary .......................................................................................................................................................... 245
24.0 Development Support............................................................................................................................................................... 253
25.0 Electrical Characteristics .......................................................................................................................................................... 257
26.0 Packaging Information.............................................................................................................................................................. 297
Appendix A: Revision History............................................................................................................................................................. 307
Index ................................................................................................................................................................................................. 313
The Microchip Web Site ..................................................................................................................................................................... 317
Customer Change Notification Service .............................................................................................................................................. 317
Customer Support .............................................................................................................................................................................. 317
Reader Response .............................................................................................................................................................................. 318
Product Identification System............................................................................................................................................................. 319
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
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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
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To determine if an errata sheet exists for a particular device, please check with one of the following:
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© 2009 Microchip Technology Inc. DS70286C-page 13
dsPIC33FJXXXGPX06/X08/X10
1.0 DEVICE OVERVIEW
This document contains device specific information for
the following devices:
dsPIC33FJ64GP206
dsPIC33FJ64GP306
dsPIC33FJ64GP310
dsPIC33FJ64GP706
dsPIC33FJ64GP708
dsPIC33FJ64GP710
dsPIC33FJ128GP206
dsPIC33FJ128GP306
dsPIC33FJ128GP310
dsPIC33FJ128GP706
dsPIC33FJ128GP708
dsPIC33FJ128GP710
dsPIC33FJ256GP506
dsPIC33FJ256GP510
dsPIC33FJ256GP710
The dsPIC33FJXXXGPX06/X08/X10 General Purpose
Family of device includes devices with a wide range of
pin counts (64, 80 and 100), different program memory
sizes (64 Kbytes, 128 Kbytes and 256 Kbytes) and
different RAM sizes (8 Kbytes, 16 Kbytes and
30 Kbytes).
This feature makes the family suitable for a wide variety
of high-performance digital signal control applications.
The device is pin compatible with the PIC24H family of
devices, and also share a very high degree of
compatibility with the dsPIC30F family devices. This
allows for easy migration between device families as may
be necessitated by the specific functionality,
computational resource and system cost requirements of
the application.
The dsPIC33FJXXXGPX06/X08/X10 device family
employs a powerful 16-bit architecture that seamlessly
integrates the control features of a Microcontroller
(MCU) with the computational capabilities of a Digital
Signal Processor (DSP). The resulting functionality is
ideal for applications that rely on high-speed, repetitive
computations, as well as control.
The DSP engine, dual 40-bit accumulators, hardware
support for division operations, barrel shifter, 17 x 17
multiplier, a large array of 16-bit working registers and
a wide variety of data addressing modes, together
provide the dsPIC33FJXXXGPX06/X08/X10 Central
Processing Unit (CPU) with extensive mathematical
processing capability. Flexible and deterministic
interrupt handling, coupled with a powerful array of
peripherals, renders the
dsPIC33FJXXXGPX06/X08/X10 devices suitable for
control applications. Further, Direct Memory Access
(DMA) enables overhead-free transfer of data between
several peripherals and a dedicated DMA RAM.
Reliable, field programmable Flash program memory
ensures scalability of applications that use
dsPIC33FJXXXGPX06/X08/X10 devices.
Figure 1-1 illustrates a general block diagram of the
various core and peripheral modules in the
dsPIC33FJXXXGPX06/X08/X10 family of devices.
Table 1-1 provides the functions of the various pins
illustrated in the pinout diagrams.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the latest family
reference sections of the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 14 © 2009 Microchip Technology Inc.
FIGURE 1-1: dsPIC33FJXXXGPX06/X08/X10 GENERAL 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/VDDCORE
UART1,2
ECAN1,2
DCI
IC1-8 SPI1,2 I2C1,2
OC/
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.
PWM1-8
CN1-23
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
DMA
RAM
DMA
Controller
Control Signals
to Various Blocks
ADC1,2
Timers
PORTB
PORTC
PORTD
PORTE
PORTF
PORTG
Address Generator Units
1-9
© 2009 Microchip Technology Inc. DS70286C-page 15
dsPIC33FJXXXGPX06/X08/X10
TABLE 1-1: PINOUT I/O DESCRIPTIONS
Pin Name Pin
Type
Buffer
Type Description
AN0-AN31 I Analog Analog input channels.
AVDD P P Positive supply for analog modules. This pin must be connected at all times.
AVSS P P Ground reference for analog modules.
CLKI
CLKO
I
O
ST/CMOS
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.
CN0-CN23 I ST Input change notification inputs.
Can be software programmed for internal weak pull-ups on all inputs.
COFS
CSCK
CSDI
CSDO
I/O
I/O
I
O
ST
ST
ST
Data Converter Interface frame synchronization pin.
Data Converter Interface serial clock input/output pin.
Data Converter Interface serial data input pin.
Data Converter Interface serial data output pin.
C1RX
C1TX
C2RX
C2TX
I
O
I
O
ST
ST
ECAN1 bus receive pin.
ECAN1 bus transmit pin.
ECAN2 bus receive pin.
ECAN2 bus transmit pin.
PGED1
PGEC1
PGED2
PGEC2
PGED3
PGEC3
I/O
I
I/O
I
I/O
I
ST
ST
ST
ST
ST
ST
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.
IC1-IC8 I ST Capture inputs 1 through 8.
INT0
INT1
INT2
INT3
INT4
I
I
I
I
I
ST
ST
ST
ST
ST
External interrupt 0.
External interrupt 1.
External interrupt 2.
External interrupt 3.
External interrupt 4.
MCLR I/P ST Master Clear (Reset) input. This pin is an active-low Reset to the device.
OCFA
OCFB
OC1-OC8
I
I
O
ST
ST
Compare Fault A input (for Compare Channels 1, 2, 3 and 4).
Compare Fault B input (for Compare Channels 5, 6, 7 and 8).
Compare outputs 1 through 8.
OSC1
OSC2
I
I/O
ST/CMOS
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.
RA0-RA7
RA9-RA10
RA12-RA15
I/O
I/O
I/O
ST
ST
ST
PORTA is a bidirectional I/O port.
RB0-RB15 I/O ST PORTB is a bidirectional I/O port.
RC1-RC4
RC12-RC15
I/O
I/O
ST
ST
PORTC is a bidirectional I/O port.
RD0-RD15 I/O ST PORTD is a bidirectional I/O port.
RE0-RE7 I/O ST PORTE is a bidirectional I/O port.
RF0-RF8
RF12-RF13
I/O
I/O
ST
ST
PORTF is a bidirectional I/O port.
Legend: CMOS = CMOS compatible input or output; Analog = Analog input; P = Power
ST = Schmitt Trigger input with CMOS levels; O = Output; I = Input
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 16 © 2009 Microchip Technology Inc.
RG0-RG3
RG6-RG9
RG12-RG15
I/O
I/O
I/O
ST
ST
ST
PORTG is a bidirectional I/O port.
SCK1
SDI1
SDO1
SS1
SCK2
SDI2
SDO2
SS2
I/O
I
O
I/O
I/O
I
O
I/O
ST
ST
ST
ST
ST
ST
Synchronous serial clock input/output for SPI1.
SPI1 data in.
SPI1 data out.
SPI1 slave synchronization or frame pulse I/O.
Synchronous serial clock input/output for SPI2.
SPI2 data in.
SPI2 data out.
SPI2 slave synchronization or frame pulse I/O.
SCL1
SDA1
SCL2
SDA2
I/O
I/O
I/O
I/O
ST
ST
ST
ST
Synchronous serial clock input/output for I2C1.
Synchronous serial data input/output for I2C1.
Synchronous serial clock input/output for I2C2.
Synchronous serial data input/output for I2C2.
SOSCI
SOSCO
I
O
ST/CMOS
32.768 kHz low-power oscillator crystal input; CMOS otherwise.
32.768 kHz low-power oscillator crystal output.
TMS
TCK
TDI
TDO
I
I
I
O
ST
ST
ST
JTAG Test mode select pin.
JTAG test clock input pin.
JTAG test data input pin.
JTAG test data output pin.
T1CK
T2CK
T3CK
T4CK
T5CK
T6CK
T7CK
T8CK
T9CK
I
I
I
I
I
I
I
I
I
ST
ST
ST
ST
ST
ST
ST
ST
ST
Timer1 external clock input.
Timer2 external clock input.
Timer3 external clock input.
Timer4 external clock input.
Timer5 external clock input.
Timer6 external clock input.
Timer7 external clock input.
Timer8 external clock input.
Timer9 external clock input.
U1CTS
U1RTS
U1RX
U1TX
U2CTS
U2RTS
U2RX
U2TX
I
O
I
O
I
O
I
O
ST
ST
ST
ST
UART1 clear to send.
UART1 ready to send.
UART1 receive.
UART1 transmit.
UART2 clear to send.
UART2 ready to send.
UART2 receive.
UART2 transmit.
VDD P Positive supply for peripheral logic and I/O pins.
VCAP/VDDCORE P CPU logic filter capacitor connection.
VSS P Ground reference for logic and I/O pins.
VREF+ I Analog Analog voltage reference (high) input.
VREF- I Analog Analog voltage reference (low) input.
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name Pin
Type
Buffer
Type Description
Legend: CMOS = CMOS compatible input or output; Analog = Analog input; P = Power
ST = Schmitt Trigger input with CMOS levels; O = Output; I = Input
© 2009 Microchip Technology Inc. DS70286C-page 17
dsPIC33FJXXXGPX06/X08/X10
2.0 GUIDELINES FOR GETTING
STARTED WITH 16-BIT
DIGITAL SIGNAL
CONTROLLERS
2.1 Basic Connection Requirements
Getting started with the
dsPIC33FJXXXGPX06/X08/X10 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/VDDCORE
(see Section 2.3 “Capacitor on Internal Voltage
Regulator (VCAP/VDDCORE)”)
•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: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
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 Family
Reference Manual”, which is available
from the Microchip website
(www.microchip.com).
Note: The AVDD and AVSS pins must be
connected independent of the ADC
voltage reference source.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 18 © 2009 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 Capacitor on Internal Voltage
Regulator (VCAP/VDDCORE)
A low-ESR (< 5 Ohms) capacitor is required on the
VCAP/VDDCORE pin, which is used to stabilize the
voltage regulator output voltage. The VCAP/VDDCORE
pin must not be connected to VDD, and must have a
capacitor between 4.7 µF and 10 µF, 16V connected to
ground. The type can be ceramic or tantalum. Refer to
Section 25.0 “Electrical Characteristics” for
additional information.
The placement of this capacitor should be close to the
VCAP/VDDCORE. It is recommended that the trace
length not exceed one-quarter inch (6 mm). Refer to
Section 22.2 “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/VDDCORE
10 Ω
R1
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
R
VDD
MCLR
dsPIC33F
JP
© 2009 Microchip Technology Inc. DS70286C-page 19
dsPIC33FJXXXGPX06/X08/X10
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 2, MPLAB ICD 3, or MPLAB REAL
ICE™.
For more information on ICD 2, ICD 3 and REAL ICE
connection requirements, refer to the following
documents that are available on the Microchip website.
“MPLAB® ICD 2 In-Circuit Debugger User’s
Guide” DS51331
“Using MPLAB® ICD 2” (poster) DS51265
“MPLAB® ICD 2 Design Advisory” DS51566
“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.
FIGURE 2-3: SUGGESTED PLACEMENT
OF THE OSCILLATOR
CIRCUIT
13
Main Oscillator
Guard Ring
Guard Trace
Secondary
Oscillator
14
15
16
17
18
19
20
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 20 © 2009 Microchip Technology Inc.
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 4 MHz < FIN < 8 MHz 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 2, ICD 3 or REAL ICE is selected as a
debugger, it automatically initializes all of the A/D input
pins (ANx) as “digital” pins, by setting all bits in the
ADPCFG and ADPCFG2 registers.
The bits in the registers that correspond to the A/D pins
that are initialized by MPLAB ICD 2, 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 A/D pins as
analog input pins during the debug session, the user
application must clear the corresponding bits in the
ADPCFG and ADPCFG2 registers during initialization
of the ADC module.
When MPLAB ICD 2, ICD 3 or REAL ICE is used as a
programmer, the user application firmware must
correctly configure the ADPCFG and ADPCFG2
registers. Automatic initialization of these registers is
only done during debugger operation. Failure to
correctly configure the register(s) will result in all A/D
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 to VSS on
unused pins and drive the output to logic low.
© 2009 Microchip Technology Inc. DS70286C-page 21
dsPIC33FJXXXGPX06/X08/X10
3.0 CPU
The dsPIC33FJXXXGPX06/X08/X10 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 pro-
gram loop constructs are supported using the
DO
and
REPEAT
instructions, both of which are interruptible at any
point.
The dsPIC33FJXXXGPX06/X08/X10 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.
The dsPIC33FJXXXGPX06/X08/X10 instruction set has
two classes of instructions: 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 dsPIC33FJXXXGPX06/X08/X10 is capa-
ble 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. The
programmer’s model for the
dsPIC33FJXXXGPX06/X08/X10 is shown in Figure 3-2.
3.1 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 indepen-
dent 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 over-
head 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 pro-
gram 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. The data space also includes
2 Kbytes of DMA RAM, which is primarily used for DMA
data transfers, but may be used as general purpose RAM.
3.2 DSP Engine Overview
The DSP engine features a high-speed, 17-bit by 17-bit
multiplier, a 40-bit ALU, two 40-bit saturating accumula-
tors 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 concur-
rently fetch two data operands from memory while multi-
plying two W registers and accumulating and optionally
saturating the result in the same cycle. This instruction
functionality requires that the RAM memory 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.
3.3 Special MCU Features
The dsPIC33FJXXXGPX06/X08/X10 features a 17-bit by
17-bit, single-cycle multiplier that is shared by both the
MCU ALU and DSP engine. The multiplier can perform
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 dsPIC33FJXXXGPX06/X08/X10 supports 16/16 and
32/16 divide operations, both fractional and integer. All
divide instructions are iterative operations. They must be
executed within a
REPEAT
loop, resulting in a total execu-
tion 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.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 2. “CPU”
(DS70204) in the “dsPIC33F Family Ref-
erence Manual”, which is available from
the Microchip web site
(www.microchip.com).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 22 © 2009 Microchip Technology Inc.
FIGURE 3-1: dsPIC33FJXXXGPX06/X08/X10 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
© 2009 Microchip Technology Inc. DS70286C-page 23
dsPIC33FJXXXGPX06/X08/X10
FIGURE 3-2: dsPIC33FJXXXGPX06/X08/X10 PROGRAMMERS 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 24 © 2009 Microchip Technology Inc.
3.4 CPU Control Registers
CPU control registers include:
SR: CPU STATUS REGISTER
CORCON: CORE CONTROL REGISTER
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 DA DC
bit 15 bit 8
R/W-0(2) 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
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
Note: This bit may be read or cleared (not set). Clearing this bit will clear SA and SB.
bit 9 DA: DO Loop Active bit
1 = DO loop in progress
0 = DO loop not in progress
Note 1: This bit may 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 NSTDIS = 1 (INTCON1<15>).
© 2009 Microchip Technology Inc. DS70286C-page 25
dsPIC33FJXXXGPX06/X08/X10
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
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 (2’s complement). It indicates an overflow of the magnitude which
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 which affects the Z bit has set it at some time in the past
0 = The most recent operation which 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 may 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 NSTDIS = 1 (INTCON1<15>).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 26 © 2009 Microchip Technology Inc.
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 will 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.
© 2009 Microchip Technology Inc. DS70286C-page 27
dsPIC33FJXXXGPX06/X08/X10
3.5 Arithmetic Logic Unit (ALU)
The dsPIC33FJXXXGPX06/X08/X10 ALU is 16 bits
wide and is capable of addition, subtraction, bit shifts
and logic operations. Unless otherwise mentioned,
arithmetic operations are 2’s complement in nature.
Depending on the operation, the ALU may 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 Bor-
row 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 “dsPIC30F/33F Programmer’s Reference
Manual” (DS70157) for information on the SR bits
affected by each instruction.
The dsPIC33FJXXXGPX06/X08/X10 CPU
incorporates hardware support for both multiplication
and division. This includes a dedicated hardware
multiplier and support hardware for 16-bit-divisor
division.
3.5.1 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:
1. 16-bit x 16-bit signed
2. 16-bit x 16-bit unsigned
3. 16-bit signed x 5-bit (literal) unsigned
4. 16-bit unsigned x 16-bit unsigned
5. 16-bit unsigned x 5-bit (literal) unsigned
6. 16-bit unsigned x 16-bit signed
7. 8-bit unsigned x 8-bit unsigned
3.5.2 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.
3.6 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 dsPIC33FJXXXGPX06/X08/X10 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 may be used concurrently by the same
instruction (e.g., ED, EDAC).
The DSP engine also has the capability to perform
inherent accumulator-to-accumulator operations which
require no additional data. These instructions are ADD,
SUB and NEG.
The DSP engine has various options selected through
various bits in the CPU Core Control register
(CORCON), as listed below:
1. Fractional or integer DSP multiply (IF).
2. Signed or unsigned DSP multiply (US).
3. Conventional or convergent rounding (RND).
4. Automatic saturation on/off for AccA (SATA).
5. Automatic saturation on/off for AccB (SATB).
6. Automatic saturation on/off for writes to data
memory (SATDW).
7. Accumulator Saturation mode selection (ACCSAT).
Table 3-1 provides a summary of DSP instructions. 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 + x2No
MOVSAC No change in A Yes
MPY A = x * y No
MPY A = x 2No
MPY.N A = – x * y No
MSC A = A – x * y Yes
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 28 © 2009 Microchip Technology Inc.
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
© 2009 Microchip Technology Inc. DS70286C-page 29
dsPIC33FJXXXGPX06/X08/X10
3.6.1 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 which 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. Generally speaking, 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 which 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 multiplies.
The MUL instruction may be directed to use byte or
word sized operands. Byte operands will direct a 16-bit
result, and word operands will direct a 32-bit result to
the specified register(s) in the W array.
3.6.2 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
via the barrel shifter prior to accumulation.
3.6.2.1 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), whereas 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 which
controls accumulator data saturation, if selected. It
uses the result of the adder, the Overflow Status bits
described above 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 have been provided to
support saturation and overflow; they are:
1. OA:
AccA overflowed into guard bits
2. OB:
AccB overflowed into guard bits
3. SA:
AccA saturated (bit 31 overflow and saturation)
or
AccA overflowed into guard bits and saturated
(bit 39 overflow and saturation)
4. SB:
AccB saturated (bit 31 overflow and saturation)
or
AccB overflowed into guard bits and saturated
(bit 39 overflow and saturation)
5. OAB:
Logical OR of OA and OB
6. 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 (refer to Section 7.0
“Interrupt Controller”) are set. This allows the user to
take immediate action, for example, to correct system
gain.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 30 © 2009 Microchip Technology Inc.
The SA and SB bits are modified each time data
passes through the adder/subtracter, but can only be
cleared by the user. When set, they indicate that the
accumulator has overflowed its maximum range (bit 31
for 32-bit saturation or bit 39 for 40-bit saturation) and
will be 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, SA and SB bits will generate
an arithmetic warning trap when saturation is disabled.
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). This allows programmers to 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 would be useful
for complex number arithmetic which typically uses
both the accumulators.
The device supports three Saturation and Overflow
modes:
1. 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. This is referred to as
‘super saturation’ and provides protection against
erroneous data or unexpected algorithm
problems (e.g., gain calculations).
2. 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 negative 1.31 value (0x0080000000),
into the target accumulator. The SA or SB bit is
set and remains set until cleared by the user.
When this Saturation mode is in effect, the
guard bits are not used (so the OA, OB or OAB
bits are never set).
3. 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. 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.
3.6.2.2 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:
1. W13, Register Direct:
The rounded contents of the non-target
accumulator are written into W13 as a
1.15 fraction.
2. [W13]+ = 2, Register Indirect with Post-Increment:
The rounded contents of the non-target
accumulator are written into the address pointed
to by W13 as a 1.15 fraction. W13 is then
incremented by 2 (for a word write).
3.6.2.3 Round Logic
The round logic is a combinational block which
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 which 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
accumulator and adds it to the ACCxH word (bits 16
through 31 of the accumulator). If the ACCxL word
(bits 0 through 15 of the accumulator) 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 succession 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 3.6.2.4 “Data Space Write Saturation”). For
the MAC class of instructions, the accumulator
write-back operation will function 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.
© 2009 Microchip Technology Inc. DS70286C-page 31
dsPIC33FJXXXGPX06/X08/X10
3.6.2.4 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.
3.6.3 BARREL SHIFTER
The barrel shifter is capable of performing 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
to 31 for right shifts, and between bit positions 0 to 16
for left shifts.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 32 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 33
dsPIC33FJXXXGPX06/X08/X10
4.0 MEMORY ORGANIZATION
The dsPIC33FJXXXGPX06/X08/X10 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
dsPIC33FJXXXGPX06/X08/X10 devices is 4M
instructions. The space is addressable by a 24-bit
value derived from either the 23-bit Program Counter
(PC) during program execution, or from table operation
or data space remapping as described in Section 4.6
“Interfacing Program and Data Memory Spaces”.
User 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. Memory usage for the
dsPIC33FJXXXGPX06/X08/X10 of devices is shown in
Figure 4-1.
FIGURE 4-1: PROGRAM MEMORY FOR dsPIC33FJXXXGPX06/X08/X10 DEVICES
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 3. “Data
Memory” (DS70202) and Section 4.
“Program Memory” (DS70203) in the
“dsPIC33F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
Reset Address
0x000000
0x0000FE
0x000002
0x000100
Device Configuration
User Program
Flash Memory
0x00AC00
0x00ABFE
(22K instructions)
0x800000
0xF80000
Registers 0xF80017
0xF80010
DEVID (2)
0xFEFFFE
0xFF0000
0xFFFFFE
0xF7FFFE
Unimplemented
(Read ‘0’s)
GOTO Instruction
0x000004
Reserved
0x7FFFFE
Reserved
0x000200
0x0001FE
0x000104
Alternate Vector Table
Reserved
Interrupt Vector Table
Reset Address
Device Configuration
Registers
DEVID (2)
Unimplemented
(Read ‘0’s)
GOTO
Instruction
Reserved
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
Reset Address
Device Configuration
User Program
Flash Memory
(88K instructions)
Registers
DEVID (2)
GOTO Instruction
Reserved
Reserved
Alternate Vector Table
Reserved
Interrupt Vector Table
dsPIC33FJ64GPXXX dsPIC33FJ128GPXXX dsPIC33FJ256GPXXX
Configuration Memory Space User Memory Space
0x015800
0x0157FE
Note: Memory areas are not shown to scale.
User Program
(44K instructions)
Flash Memory
(Read ‘0’s)
Unimplemented
0x02AC00
0x02ABFE
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 34 © 2009 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 also provides compatibility with data
memory space addressing and makes it possible to
access data in the program memory space.
4.1.2 INTERRUPT AND TRAP VECTORS
All dsPIC33FJXXXGPX06/X08/X10 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 at 0x000000, with the actual address for the
start of code at 0x000002.
dsPIC33FJXXXGPX06/X08/X10 devices also have
two interrupt vector tables, located from 0x000004 to
0x0000FF and 0x000100 to 0x0001FF. These vector
tables allow each of the many 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)
© 2009 Microchip Technology Inc. DS70286C-page 35
dsPIC33FJXXXGPX06/X08/X10
4.2 Data Address Space
The dsPIC33FJXXXGPX06/X08/X10 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. Data
memory maps of devices with different RAM sizes are
shown in Figure 4-3 through Figure 4-5.
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 4.6.3 “Reading Data from
Program Memory Using Program Space Visibility”).
dsPIC33FJXXXGPX06/X08/X10 devices implement a
total of up to 30 Kbytes of data memory. Should an EA
point to a location outside of this area, an all-zero word
or byte will be 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 dsPIC33FJXXXGPX06/X08/X10
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++] will result in a value of Ws + 1
for byte operations and Ws + 2 for word operations.
Data byte reads will read 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 which
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 it occurred on a
write, the instruction will be executed but the write does
not occur. In either case, a trap is then executed,
allowing the system and/or user 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
users to translate 8-bit signed data to 16-bit signed
values. Alternatively, for 16-bit unsigned data, users
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
dsPIC33FJXXXGPX06/X08/X10 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’. A complete listing of implemented
SFRs, including their addresses, is shown in Table 4-1
through Table 4-34.
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. Please
refer to the corresponding device tables
and pinout diagrams for device-specific
information.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 36 © 2009 Microchip Technology Inc.
FIGURE 4-3: DATA MEMORY MAP FOR dsPIC33FJXXXGPX06/X08/X10 DEVICES WITH 8 KBS
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)
© 2009 Microchip Technology Inc. DS70286C-page 37
dsPIC33FJXXXGPX06/X08/X10
FIGURE 4-4: DATA MEMORY MAP FOR dsPIC33FJXXXGPX06/X08/X10 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)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 38 © 2009 Microchip Technology Inc.
FIGURE 4-5: DATA MEMORY MAP FOR dsPIC33FJXXXGPX06/X08/X10 DEVICES WITH 30 KB
RAM
0x0000
0x07FE
SFR Space
0xFFFE
X Data RAM (X)
16 bits
LSBMSB
0x0001
0x07FF
0xFFFF
X Data
Optionally
Mapped
into Program
Memory
Unimplemented (X)
0x0801 0x0800
2 Kbyte
SFR Space
0x4800
0x47FE
0x4801
0x47FF
0x7FFE
0x8000
30 Kbyte
SRAM Space
0x7FFF
0x8001
Y Data RAM (Y)
Near
Data
8 Kbyte
Space
0x77FE
0x7800
0x77FF
0x7800
LSB
Address
MSB
Address
DMA RAM
© 2009 Microchip Technology Inc. DS70286C-page 39
dsPIC33FJXXXGPX06/X08/X10
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. There are separate
read and write data buses for X data space. 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 dsPIC33FJXXXGPX06/X08/X10 device contains
2 Kbytes of dual ported DMA RAM located at the end of
Y data space. Memory locations is part of Y data RAM
and is 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.
Note: DMA RAM can be used for general
purpose data storage if the DMA function
is not required in an application.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 40 © 2009 Microchip Technology Inc.
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 Accumulator A Low Word Register
0000
ACCAH 0024 Accumulator A High Word Register
0000
ACCAU 0026 Accumulator A Upper Word Register
0000
ACCBL 0028 Accumulator B Low Word Register
0000
ACCBH 002A Accumulator B High Word Register
0000
ACCBU 002C Accumulator B Upper Word Register
0000
PCL 002E Program Counter Low Word Register
0000
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> 0xxxx
DOSTARTH 003C
DOSTARTH<5:0> 00xx
DOENDL 003E DOENDL<15:1> 0xxxx
DOENDH 0040
DOENDH 00xx
SR 0042 OA OB SA SB OAB SAB DA DC IPL2 IPL1 IPL0 RA N OV Z C
0000
CORCON 0044 —USEDT DL<2:0>
SATA SATB SATDW ACCSAT IPL3 PSV RND IF
0020
MODCON 0046 XMODEN YMODEN
BWM<3:0> YWM<3:0> XWM<3:0> 0000
XMODSRT 0048 XS<15:1> 0xxxx
XMODEND 004A XE<15:1> 1xxxx
YMODSRT 004C YS<15:1> 0xxxx
YMODEND 004E YE<15:1> 1xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 41
dsPIC33FJXXXGPX06/X08/X10
XBREV 0050 BREN XB<14:0> xxxx
DISICNT 0052
Disable Interrupts Counter
Register
xxxx
BSRAM 0750
IW_BSR IR_BSR RL_BSR
0000
SSRAM 0752
IW_SSR IR_SSR RL_SSR
0000
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 42 © 2009 Microchip Technology Inc.
TABLE 4-2: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJXXXGPX10 DEVICES
SFR
Name SFR
Addr Bit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0All
Resets
CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE
0000
CNEN2 0062
————————
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
————————
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.
TABLE 4-3: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJXXXGPX08 DEVICES
SFR
Name SFR
Addr Bit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0All
Resets
CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE
0000
CNEN2 0062
——————————
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
——————————
CN21PUE CN20PUE CN19PUE CN18PUE CN17PUE CN16PUE
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
TABLE 4-4: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJXXXGPX06 DEVICES
SFR
Name SFR
Addr Bit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0All
Resets
CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE
0000
CNEN2 0062
——————————
CN21IE CN20IE 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
——————————
CN21PUE CN20PUE CN18PUE CN17PUE CN16PUE
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 43
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-5: 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 INT4EP INT3EP 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 AD2IF INT1IF CNIF MI2C1IF SI2C1IF 0000
IFS2 0088 T6IF DMA4IF OC8IF OC7IF OC6IF OC5IF IC6IF IC5IF IC4IF IC3IF DMA3IF C1IF C1RXIF SPI2IF SPI2EIF 0000
IFS3 008A DMA5IF DCIIF DCIEIF C2IF C2RXIF INT4IF INT3IF T9IF T8IF MI2C2IF SI2C2IF T7IF 0000
IFS4 008C C2TXIF C1TXIF DMA7IF DMA6IF —U2EIFU1EIF0000
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 AD2IE INT1IE CNIE MI2C1IE SI2C1IE 0000
IEC2 0098 T6IE DMA4IE OC8IE OC7IE OC6IE OC5IE IC6IE IC5IE IC4IE IC3IE DMA3IE C1IE C1RXIE SPI2IE SPI2EIE 0000
IEC3 009A DMA5IE DCIIE DCIEIE C2IE C2RXIE INT4IE INT3IE T9IE T8IE MI2C2IE SI2C2IE T7IE 0000
IEC4 009C C2TXIE C1TXIE DMA7IE DMA6IE —U2EIEU1EIE0000
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> MI2C1IP<2:0> SI2C1IP<2:0> 4044
IPC5 00AE IC8IP<2:0> —IC7IP<2:0> AD2IP<2:0> INT1IP<2:0> 4444
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> C1RXIP<2:0> SPI2IP<2:0> SPI2EIP<2:0> 4444
IPC9 00B6 IC5IP<2:0> —IC4IP<2:0>—IC3IP<2:0> DMA3IP<2:0> 4444
IPC10 00B8 —OC7IP<2:0> OC6IP<2:0> OC5IP<2:0> IC6IP<2:0> 4444
IPC11 00BA T6IP<2:0> DMA4IP<2:0> —OC8IP<2:0>4404
IPC12 00BC T8IP<2:0> —MI2C2IP<2:0> SI2C2IP<2:0> T7IP<2:0> 4444
IPC13 00BE C2RXIP<2:0> INT4IP<2:0> INT3IP<2:0> T9IP<2:0> 4444
IPC14 00C0 DCIEIP<2:0> C2IP<2:0> 4004
IPC15 00C2 DMA5IP<2:0> DCIIP<2:0> 0044
IPC16 00C4 U2EIP<2:0> U1EIP<2:0> 0440
IPC17 00C6 C2TXIP<2:0> C1TXIP<2:0> DMA7IP<2:0> DMA6IP<2:0> 4444
INTTREG 00E0 —ILR<3:0> VECNUM<6:0> 0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 44 © 2009 Microchip Technology Inc.
TABLE 4-6: 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
xxxx
PR1 0102 Period Register 1
FFFF
T1CON 0104 TON
TSIDL
——————
TGATE TCKPS<1:0>
TSYNC TCS
0000
TMR2 0106 Timer2 Register
xxxx
TMR3HLD 0108 Timer3 Holding Register (for 32-bit timer operations only)
xxxx
TMR3 010A Timer3 Register
xxxx
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
xxxx
TMR5HLD 0116 Timer5 Holding Register (for 32-bit operations only)
xxxx
TMR5 0118 Timer5 Register
xxxx
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
TMR6 0122 Timer6 Register
xxxx
TMR7HLD 0124 Timer7 Holding Register (for 32-bit operations only)
xxxx
TMR7 0126 Timer7 Register
xxxx
PR6 0128 Period Register 6
FFFF
PR7 012A Period Register 7
FFFF
T6CON 012C TON —TSIDL————— TGATE TCKPS<1:0> T32 —TCS
0000
T7CON 012E TON —TSIDL————— TGATE TCKPS<1:0> —TCS
0000
TMR8 0130 Timer8 Register
xxxx
TMR9HLD 0132 Timer9 Holding Register (for 32-bit operations only)
xxxx
TMR9 0134 Timer9 Register
xxxx
PR8 0136 Period Register 8
FFFF
PR9 0138 Period Register 9
FFFF
T8CON 013A TON
TSIDL
——————
TGATE TCKPS<1:0> T32
TCS
0000
T9CON 013C TON
TSIDL
——————
TGATE TCKPS<1:0>
TCS
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 45
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-7: 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
IC3BUF 0148 Input 3 Capture Register
xxxx
IC3CON 014A
ICSIDL
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC4BUF 014C Input 4 Capture Register
xxxx
IC4CON 014E
ICSIDL
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC5BUF 0150 Input 5 Capture Register
xxxx
IC5CON 0152
ICSIDL
ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>
0000
IC6BUF 0154 Input 6 Capture Register
xxxx
IC6CON 0156
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 8 Capture 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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 46 © 2009 Microchip Technology Inc.
TABLE 4-8: 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
OC5RS 0198 Output Compare 5 Secondary Register
xxxx
OC5R 019A Output Compare 5 Register
xxxx
OC5CON 019C
OCSIDL
OCFLT OCTSEL OCM<2:0>
0000
OC6RS 019E Output Compare 6 Secondary Register
xxxx
OC6R 01A0 Output Compare 6 Register
xxxx
OC6CON 01A2
OCSIDL
OCFLT OCTSEL OCM<2:0>
0000
OC7RS 01A4 Output Compare 7 Secondary Register
xxxx
OC7R 01A6 Output Compare 7 Register
xxxx
OC7CON 01A8
OCSIDL
OCFLT OCTSEL OCM<2:0>
0000
OC8RS 01AA Output Compare 8 Secondary Register
xxxx
OC8R 01AC Output Compare 8 Register
xxxx
OC8CON 01AE
OCSIDL
OCFLT OCTSEL OCM<2:0>
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 47
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-9: I2C1 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
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 4-10: I2C2 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
I2C2RCV 0210 —————— Receive Register
0000
I2C2TRN 0212 —————— Transmit Register
00FF
I2C2BRG 0214 ————— Baud Rate Generator Register
0000
I2C2CON 0216 I2CEN I2CSIDL SCLREL IPMIEN A10M DISSLW SMEN GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN
1000
I2C2STAT 0218 ACKSTAT TRSTAT BCL GCSTAT ADD10 IWCOL I2COV D_A P S R_W RBF TBF
0000
I2C2ADD 021A ———— Address Register
0000
I2C2MSK 021C ———— Address Mask Register
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 48 © 2009 Microchip Technology Inc.
TABLE 4-11: 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 UART Transmit Register
xxxx
U1RXREG 0226 UART Receive 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.
TABLE 4-12: 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 UART Transmit Register
xxxx
U2RXREG 0236 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 4-13: 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 4-14: 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.
© 2009 Microchip Technology Inc. DS70286C-page 49
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-15: ADC1 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
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
AD1PCFGH(1) 032A PCFG31 PCFG30 PCFG29 PCFG28 PCFG27 PCFG26 PCFG25 PCFG24 PCFG23 PCFG22 PCFG21 PCFG20 PCFG19 PCFG18 PCFG17 PCFG16 0000
AD1PCFGL 032C PCFG15 PCFG14 PCFG13 PCFG12 PCFG11 PCFG10 PCFG9 PCFG8 PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000
AD1CSSH(1) 032E CSS31 CSS30 CSS29 CSS28 CSS27 CSS26 CSS25 CSS24 CSS23 CSS22 CSS21 CSS20 CSS19 CSS18 CSS17 CSS16 0000
AD1CSSL 0330 CSS15 CSS14 CSS13 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.
Note 1: Not all ANx inputs are available on all devices. See the device pin diagrams for available ANx inputs.
TABLE 4-16: ADC2 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
ADC2BUF0 0340 ADC Data Buffer 0 xxxx
AD2CON1 0360 ADON ADSIDL ADDMABM AD12B FORM<1:0> SSRC<2:0> SIMSAM ASAM SAMP DONE 0000
AD2CON2 0362 VCFG<2:0> CSCNA CHPS<1:0> BUFS SMPI<3:0> BUFM ALTS 0000
AD2CON3 0364 ADRC SAMC<4:0> ADCS<7:0> 0000
AD2CHS123 0366 CH123NB<1:0> CH123SB CH123NA<1:0> CH123SA 0000
AD2CHS0 0368 CH0NB CH0SB<3:0> CH0NA CH0SA<3:0> 0000
Reserved 036A 0000
AD2PCFGL 036C PCFG15 PCFG14 PCFG13 PCFG12 PCFG11 PCFG10 PCFG9 PCFG8 PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000
Reserved 036E 0000
AD2CSSL 0370 CSS15 CSS14 CSS13 CSS12 CSS11 CSS10 CSS9 CSS8 CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0 0000
AD2CON4 0372 —DMABL<2:0>0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 50 © 2009 Microchip Technology Inc.
TABLE 4-17: 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
DMA5PAD 03C4 PAD<15:0> 0000
Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 51
dsPIC33FJXXXGPX06/X08/X10
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 4-17: 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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 52 © 2009 Microchip Technology Inc.
TABLE 4-18: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 OR 1 FOR dsPIC33FJXXXGP506/510/706/708/710 DEVICES ONLY
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 4-19: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 FOR dsPIC33FJXXXGP506/510/706/708/710 DEVICES ONLY
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 TXABAT0 TXLARB0 TXERR0 TXREQ0 RTREN0 TX0PRI<1:0>
0000
C1TR23CON 0432
TXEN3 TXABT3 TXLARB3 TXERR3 TXREQ3 RTREN3 TX3PRI<1:0> TXEN2 TXABAT2 TXLARB2 TXERR2 TXREQ2 RTREN2 TX2PRI<1:0>
0000
C1TR45CON 0434
TXEN5 TXABT5 TXLARB5 TXERR5 TXREQ5 RTREN5 TX5PRI<1:0> TXEN4 TXABAT4 TXLARB4 TXERR4 TXREQ4 RTREN4 TX4PRI<1:0>
0000
C1TR67CON 0436
TXEN7 TXABT7 TXLARB7 TXERR7 TXREQ7 RTREN7 TX7PRI<1:0> TXEN6 TXABAT6 TXLARB6 TXERR6 TXREQ6 RTREN6 TX6PRI<1:0>
xxxx
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.
© 2009 Microchip Technology Inc. DS70286C-page 53
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-20: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1 FOR dsPIC33FJXXXGP506/510/706/708/710 DEVICES ONLY
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
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 54 © 2009 Microchip Technology Inc.
C1RXF11SID 046C SID<10:3> SID<2:0> —EXIDE EID<17:16> xxxx
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 4-20: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1 FOR dsPIC33FJXXXGP506/510/706/708/710 DEVICES ONLY (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.
© 2009 Microchip Technology Inc. DS70286C-page 55
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-21: ECAN2 REGISTER MAP WHEN C2CTRL1.WIN = 0 OR 1 FOR dsPIC33FJXXXGP706/708/710 DEVICES ONLY
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
C2CTRL1 0500 —CSIDLABAT REQOP<2:0> OPMODE<2:0> CANCAP —WIN0480
C2CTRL2 0502 DNCNT<4:0> 0000
C2VEC 0504 FILHIT<4:0> ICODE<6:0> 0000
C2FCTRL 0506 DMABS<2:0> FSA<4:0> 0000
C2FIFO 0508 FBP<5:0> FNRB<5:0> 0000
C2INTF 050A TXBO TXBP RXBP TXWAR RXWAR EWARN IVRIF WAKIF ERRIF FIFOIF RBOVIF RBIF TBIF 0000
C2INTE 050C IVRIE WAKIE ERRIE FIFOIE RBOVIE RBIE TBIE 0000
C2EC 050E TERRCNT<7:0> RERRCNT<7:0> 0000
C2CFG1 0510 SJW<1:0> BRP<5:0> 0000
C2CFG2 0512 WAKFIL SEG2PH<2:0> SEG2PHTS SAM SEG1PH<2:0> PRSEG<2:0> 0000
C2FEN1 0514 FLTEN15 FLTEN14 FLTEN13 FLTEN12 FLTEN11 FLTEN10 FLTEN9 FLTEN8 FLTEN7 FLTEN6 FLTEN5 FLTEN4 FLTEN3 FLTEN2 FLTEN1 FLTEN0 FFFF
C2FMSKSEL1 0518 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
C2FMSKSEL2 051A 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 4-22: ECAN2 REGISTER MAP WHEN C2CTRL1.WIN = 0 FOR dsPIC33FJXXXGP706/708/710 DEVICES ONLY
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
0500-
051E
See definition when WIN = x
C2RXFUL1 0520 RXFUL15 RXFUL14 RXFUL13 RXFUL12 RXFUL11 RXFUL10 RXFUL9 RXFUL8 RXFUL7 RXFUL6 RXFUL5 RXFUL4 RXFUL3 RXFUL2 RXFUL1 RXFUL0 0000
C2RXFUL2 0522 RXFUL31 RXFUL30 RXFUL29 RXFUL28 RXFUL27 RXFUL26 RXFUL25 RXFUL24 RXFUL23 RXFUL22 RXFUL21 RXFUL20 RXFUL19 RXFUL18 RXFUL17 RXFUL16 0000
C2RXOVF1 0528 RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF09 RXOVF08 RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0 0000
C2RXOVF2 052A RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24 RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16 0000
C2TR01CON 0530 TXEN1 TX
ABAT1
TX
LARB1
TX
ERR1
TX
REQ1
RTREN1 TX1PRI<1:0> TXEN0 TX
ABAT0
TX
LARB0
TX
ERR0
TX
REQ0
RTREN0 TX0PRI<1:0> 0000
C2TR23CON 0532 TXEN3 TX
ABAT3
TX
LARB3
TX
ERR3
TX
REQ3
RTREN3 TX3PRI<1:0> TXEN2 TX
ABAT2
TX
LARB2
TX
ERR2
TX
REQ2
RTREN2 TX2PRI<1:0> 0000
C2TR45CON 0534 TXEN5 TX
ABAT5
TX
LARB5
TX
ERR5
TX
REQ5
RTREN5 TX5PRI<1:0> TXEN4 TX
ABAT4
TX
LARB4
TX
ERR4
TX
REQ4
RTREN4 TX4PRI<1:0> 0000
C2TR67CON 0536 TXEN7 TX
ABAT7
TX
LARB7
TX
ERR7
TX
REQ7
RTREN7 TX7PRI<1:0> TXEN6 TX
ABAT6
TX
LARB6
TX
ERR6
TX
REQ6
RTREN6 TX6PRI<1:0> xxxx
C2RXD 0540 Recieved Data Word xxxx
C2TXD 0542 Transmit Data Word xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 56 © 2009 Microchip Technology Inc.
TABLE 4-23: ECAN2 REGISTER MAP WHEN C2CTRL1.WIN = 1 FOR dsPIC33FJXXXGP706/708/710 DEVICES ONLY
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
0500
-
051E
See definition when WIN = x
C2BUFPNT1 0520 F3BP<3:0> F2BP<3:0> F1BP<3:0> F0BP<3:0> 0000
C2BUFPNT2 0522 F7BP<3:0> F6BP<3:0> F5BP<3:0> F4BP<3:0> 0000
C2BUFPNT3 0524 F11BP<3:0> F10BP<3:0> F9BP<3:0> F8BP<3:0> 0000
C2BUFPNT4 0526 F15BP<3:0> F14BP<3:0> F13BP<3:0> F12BP<3:0> 0000
C2RXM0SID 0530 SID<10:3> SID<2:0> —MIDE EID<17:16> xxxx
C2RXM0EID 0532 EID<15:8> EID<7:0> xxxx
C2RXM1SID 0534 SID<10:3> SID<2:0> —MIDE EID<17:16> xxxx
C2RXM1EID 0536 EID<15:8> EID<7:0> xxxx
C2RXM2SID 0538 SID<10:3> SID<2:0> —MIDE EID<17:16> xxxx
C2RXM2EID 053A EID<15:8> EID<7:0> xxxx
C2RXF0SID 0540 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF0EID 0542 EID<15:8> EID<7:0> xxxx
C2RXF1SID 0544 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF1EID 0546 EID<15:8> EID<7:0> xxxx
C2RXF2SID 0548 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF2EID 054A EID<15:8> EID<7:0> xxxx
C2RXF3SID 054C SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF3EID 054E EID<15:8> EID<7:0> xxxx
C2RXF4SID 0550 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF4EID 0552 EID<15:8> EID<7:0> xxxx
C2RXF5SID 0554 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF5EID 0556 EID<15:8> EID<7:0> xxxx
C2RXF6SID 0558 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF6EID 055A EID<15:8> EID<7:0> xxxx
C2RXF7SID 055C SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF7EID 055E EID<15:8> EID<7:0> xxxx
C2RXF8SID 0560 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF8EID 0562 EID<15:8> EID<7:0> xxxx
C2RXF9SID 0564 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF9EID 0566 EID<15:8> EID<7:0> xxxx
C2RXF10SID 0568 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.
© 2009 Microchip Technology Inc. DS70286C-page 57
dsPIC33FJXXXGPX06/X08/X10
C2RXF10EID 056A EID<15:8> EID<7:0> xxxx
C2RXF11SID 056C SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF11EID 056E EID<15:8> EID<7:0> xxxx
C2RXF12SID 0570 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF12EID 0572 EID<15:8> EID<7:0> xxxx
C2RXF13SID 0574 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF13EID 0576 EID<15:8> EID<7:0> xxxx
C2RXF14SID 0578 SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF14EID 057A EID<15:8> EID<7:0> xxxx
C2RXF15SID 057C SID<10:3> SID<2:0> EXIDE EID<17:16> xxxx
C2RXF15EID 057E EID<15:8> EID<7:0> xxxx
TABLE 4-23: ECAN2 REGISTER MAP WHEN C2CTRL1.WIN = 1 FOR dsPIC33FJXXXGP706/708/710 DEVICES ONLY (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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 58 © 2009 Microchip Technology Inc.
TABLE 4-24: 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 COFSM1 COFSM0 0000 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 SLOT3 SLOT2 SLOT1 SLOT0 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’.
Note 1: Refer to the “dsPIC33F Family Reference Manual” for descriptions of register bit fields.
TABLE 4-25: PORTA 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
TRISA 02C0
TRISA15 TRISA14 TRISA13 TRISA12 TRISA10 TRISA9 TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0
F6FF
PORTA 02C2
RA15 RA14 RA13 RA12 RA10 RA9 RA7 RA6 RA5 RA4 RA3 RA2 RA1 RA0
xxxx
LATA 02C4
LATA15 LATA14 LATA13 LATA12 LATA10 LATA9 LATA7 LATA6 LATA5 LATA4 LATA3 LATA2 LATA1 LATA0
xxxx
ODCA
(2)
06C0
ODCA15 ODCA14
ODCA5 ODCA4 ODCA3 ODCA2 ODCA1 ODCA0
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
TABLE 4-26: PORTB 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
TRISB 02C6 TRISB15 TRISB14 TRISB13 TRISB12 TRISB11 TRISB10 TRISB9 TRISB8 TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0
FFFF
PORTB 02C8 RB15 RB14 RB13 RB12 RB11 RB10 RB9 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0
xxxx
LATB 02CA LATB15 LATB14 LATB13 LATB12 LATB11 LATB10 LATB9 LATB8 LATB7 LATB6 LATB5 LATB4 LATB3 LATB2 LATB1 LATB0
xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
© 2009 Microchip Technology Inc. DS70286C-page 59
dsPIC33FJXXXGPX06/X08/X10
TABLE 4-27: PORTC 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
TRISC 02CC TRISC15 TRISC14 TRISC13 TRISC12 ———————
TRISC4 TRISC3 TRISC2 TRISC1
F01E
PORTC 02CE RC15 RC14 RC13 RC12 ———————
RC4 RC3 RC2 RC1
xxxx
LATC 02D0 LATC15 LATC14 LATC13 LATC12 ———————
LATC4 LATC3 LATC2 LATC1
xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
TABLE 4-28: PORTD 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
TRISD 02D2
TRISD15 TRISD14 TRISD13 TRISD12
TRISD11 TRISD10 TRISD9 TRISD8 TRISD7 TRISD6 TRISD5 TRISD4 TRISD3 TRISD2 TRISD1 TRISD0
FFFF
PORTD 02D4
RD15 RD14 RD13 RD12
RD11 RD10 RD9 RD8 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0
xxxx
LATD 02D6
LATD15 LATD14 LATD13 LATD12
LATD11 LATD10 LATD9 LATD8 LATD7 LATD6 LATD5 LATD4 LATD3 LATD2 LATD1 LATD0
xxxx
ODCD 06D2
ODCD15 ODCD14 ODCD13 ODCD12 ODCD11 ODCD10 ODCD9 ODCD8 ODCD7 ODCD6 ODCD5 ODCD4 ODCD3 ODCD2 ODCD1 ODCD0
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
TABLE 4-29: PORTE 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
TRISE 02D8 ————————
TRISE7
TRISE6 TRISE5 TRISE4 TRISE3 TRISE2 TRISE1 TRISE0
00FF
PORTE 02DA ————————
RE7
RE6 RE5 RE4 RE3 RE2 RE1 RE0
xxxx
LATE 02DC ————————
LATE7
LATE6 LATE5 LATE4 LATE3 LATE2 LATE1 LATE0
xxxx
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
TABLE 4-30: PORTF 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
TRISF 02DE
TRISF13 TRISF12
TRISF8 TRISF7
TRISF6 TRISF5 TRISF4 TRISF3 TRISF2 TRISF1 TRISF0
31FF
PORTF 02E0
RF13 RF12
RF8 RF7 RF6 RF5 RF4 RF3 RF2 RF1 RF0
xxxx
LATF 02E2
LATF13 LATF12
LATF8 LATF7 LATF6 LATF5 LATF4 LATF3 LATF2 LATF1 LATF0
xxxx
ODCF 06DE
ODCF13 ODCF12
ODCF8 ODCF7 ODCF6 ODCF5 ODCF4 ODCF3 ODCF2 ODCF1 ODCF0
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 60 © 2009 Microchip Technology Inc.
TABLE 4-31: PORTG 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
TRISG 02E4
TRISG15 TRISG14 TRISG13 TRISG12 TRISG9 TRISG8 TRISG7 TRISG6 TRISG3 TRISG2 TRISG1 TRISG0
F3CF
PORTG 02E6
RG15 RG14 RG13 RG12 RG9 RG8 RG7 RG6 RG3 RG2 RG1 RG0
xxxx
LATG 02E8
LATG15 LATG14 LATG13 LATG12 LATG9 LATG8 LATG7 LATG6 LATG3 LATG2 LATG1 LATG0
xxxx
ODCG 06E4
ODCG15 ODCG14 ODCG13 ODCG12
ODCG9 ODCG8 ODCG7 ODCG6
ODCG3 ODCG2 ODCG1 ODCG0
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal for PinHigh devices.
Note 1: The actual set of I/O port pins varies from one device to another. Please refer to the corresponding pinout diagrams.
TABLE 4-32: 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 VREGS EXTR SWR SWDTEN WDTO SLEEP IDLE BOR POR
xxxx
(1)
OSCCON 0742 COSC<2:0> NOSC<2:0> CLKLOCK —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
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 4-33: NVM REGISTER MAP
File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 All
Resets
NVMCON 0760 WR WREN WRERR ——————ERASE—NVMOP<3:0>
0000
(1)
NVMKEY 0766
——————— NVMKEY<7:0>
0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
Note 1: Reset value shown is for POR only. Value on other Reset states is dependent on the state of memory write or erase operations at the time of Reset.
TABLE 4-34: 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 C2MD C1MD AD1MD 0000
PMD2 0772 IC8MD IC7MD IC6MD IC5MD IC4MD IC3MD IC2MD IC1MD OC8MD OC7MD OC6MD OC5MD OC4MD OC3MD OC2MD OC1MD 0000
PMD3 0774 T9MD T8MD T7MD T6MD —I2C2MDAD2MD0000
Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.
© 2009 Microchip Technology Inc. DS70286C-page 61
dsPIC33FJXXXGPX06/X08/X10
4.2.7 SOFTWARE STACK
In addition to its use as a working register, the W15
register in the dsPIC33FJXXXGPX06/X08/X10 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 will not occur. The stack error trap will occur on a
subsequent push operation. Thus, for example, if it is
desirable 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
4.2.8 DATA RAM PROTECTION FEATURE
The dsPIC33F product family supports Data RAM
protection features which 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.
4.3 Instruction Addressing Modes
The addressing modes in Table 4-35 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 are
somewhat different from those in the other instruction
types.
4.3.1 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.
4.3.2 MCU INSTRUCTIONS
The 3-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where Operand 1 is always a working register (i.e., 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 following 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 Towards
Higher Address
0x0000
PC<22:16>
POP : [--W15]
PUSH : [W15++]
Note: Not all instructions support all the
addressing modes given above. Individual
instructions may support different subsets
of these addressing modes.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 62 © 2009 Microchip Technology Inc.
TABLE 4-35: FUNDAMENTAL ADDRESSING MODES SUPPORTED
4.3.3 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
4.3.4 MAC INSTRUCTIONS
The dual source operand DSP instructions (CLR, ED,
EDAC, MAC, MPY, MPY.N, MOVSAC and MSC), also referred
to as MAC instructions, utilize a simplified set of
addressing modes to allow the user to effectively
manipulate the data pointers through register indirect
tables.
The 2-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 will always be 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)
4.3.5 OTHER INSTRUCTIONS
Besides the various addressing modes outlined above,
some instructions use literal constants of various sizes.
For example, BRA (branch) instructions use 16-bit signed
literals 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.
4.4 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
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 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 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 between both source and
destination (but typically only used by
one).
Note: Not all instructions support all the
Addressing modes given above. Individual
instructions may support different subsets
of these Addressing modes.
Note: Register Indirect with Register Offset
Addressing mode is only available for W9
(in X space) and W11 (in Y space).
© 2009 Microchip Technology Inc. DS70286C-page 63
dsPIC33FJXXXGPX06/X08/X10
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 only be
configured to operate in 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 which have a power-of-2 length. As these
buffers satisfy the start and end address criteria, they
may operate in a bidirectional mode (i.e., address
boundary checks will be performed on both the lower
and upper address boundaries).
4.4.1 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
Table 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).
4.4.2 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 which registers will
operate with Modulo Addressing. If XWM = 15, X RAGU
and X WAGU Modulo Addressing is disabled. Similarly, 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 64 © 2009 Microchip Technology Inc.
4.4.3 MODULO ADDRESSING
APPLICABILITY
Modulo Addressing can be applied to the Effective
Address (EA) calculation associated with any W
register. 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 may, therefore, jump
beyond boundaries and still be adjusted correctly.
4.5 Bit-Reversed Addressing
Bit-Reversed Addressing mode is intended to simplify
data re-ordering for radix-2 FFT algorithms. It is
supported by the X AGU for data writes only.
The modifier, which may 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.
4.5.1 BIT-REVERSED ADDRESSING
IMPLEMENTATION
Bit-Reversed Addressing mode is enabled when:
1. BWM bits (W register selection) in the
MODCON register are any value other than15
(the stack cannot be accessed using
Bit-Reversed Addressing).
2. The BREN bit is set in the XBREV register.
3. 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 only
executed for Register Indirect with Pre-Increment or
Post-Increment Addressing and word sized data writes.
It will 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 Regis-
ter 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 (XBREV<15>) bit, then 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 (e.g.,
[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. In the event that the user attempts
to do so, Bit-Reversed Addressing will
assume priority when active for the X
WAGU and X WAGU Modulo Addressing
will be disabled. However, Modulo
Addressing will continue to function in the X
RAGU.
© 2009 Microchip Technology Inc. DS70286C-page 65
dsPIC33FJXXXGPX06/X08/X10
FIGURE 4-8: BIT-REVERSED ADDRESS EXAMPLE
TABLE 4-36: BIT-REVERSED ADDRESS SEQUENCE (16-ENTRY)
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 b4b11 b10 b9 b8
b11 b10 b9 b8
b15 b14 b13 b12
b15 b14 b13 b12
Sequential Address
Pivot Point
Normal Address Bit-Reversed Address
A3A2A1A0 Decimal A3A2A1A0 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 66 © 2009 Microchip Technology Inc.
4.6 Interfacing Program and Data
Memory Spaces
The dsPIC33FJXXXGPX06/X08/X10 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
dsPIC33FJXXXGPX06/X08/X10 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 from time to time. 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. It can only
access the least significant word of the program word.
4.6.1 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 4-37 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, whereas D<15:0> refers to a data space
word.
TABLE 4-37: 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>.
© 2009 Microchip Technology Inc. DS70286C-page 67
dsPIC33FJXXXGPX06/X08/X10
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 LSb of program space addresses is always fixed as ‘0’ in order 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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 68 © 2009 Microchip Technology Inc.
4.6.2 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
word wide address spaces, residing side by side, each
with the same address range. TBLRDL and TBLWTL
access the space which contains the least significant
data word and TBLRDH and TBLWTH access the space
which 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.
1. TBLRDL (Table Read Low): In Word mode, it
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’.
2. TBLRDH (Table Read High): In Word mode, it
maps the entire upper word of a program address
(P<23:16>) to a data address. Note that
D<15:8>, the ‘phantom byte’, will always be ‘0’.
In Byte mode, it maps the upper or lower byte of
the program word to D<7:0> of the data
address, as above. Note that the data will
always be ‘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 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.
© 2009 Microchip Technology Inc. DS70286C-page 69
dsPIC33FJXXXGPX06/X08/X10
4.6.3 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 of stored
constant data from the data space without the need to
use special instructions (i.e., 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. Note that 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 an additional cycle to the
instruction being executed, since two program memory
fetches are required.
Although each data space address, 8000h 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, which are executed inside
a REPEAT loop, there will be some instances that
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 will allow the
instruction accessing data, using PSV, 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 PSV-
PAG 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 70 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 71
dsPIC33FJXXXGPX06/X08/X10
5.0 FLASH PROGRAM MEMORY
The dsPIC33FJXXXGPX06/X08/X10 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:
1. In-Circuit Serial Programming™ (ICSP™)
programming capability
2. Run-Time Self-Programming (RTSP)
ICSP allows a dsPIC33FJXXXGPX06/X08/X10 device
to be serially programmed while in the end application
circuit. This is simply 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 manu-
facture 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
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: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, 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) in the
“dsPIC33F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 72 © 2009 Microchip Technology Inc.
5.2 RTSP Operation
The dsPIC33FJXXXGPX06/X08/X10 Flash program
memory array is organized into rows of 64 instructions
or 192 bytes. RTSP allows the user 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 25-12 illustrates typical erase and program-
ming times. The 8-row erase pages and single row
write rows are edge-aligned, from the beginning of pro-
gram 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 in sequential order. 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 25-19) and the value of the FRC Oscillator
Tuning register (see Register 9-4). Use the following
formula to calculate the minimum and maximum values
for the Row Write Time, Page Erase Time and Word
Write Cycle Time parameters (see Table 25-12).
EQUATION 5-1: PROGRAMMING TIME
For example, if the device is operating at +85°C, the
FRC accuracy will be ±2%. If the TUN<5:0> bits (see
Register 9-4) are set to ‘b111111, the Minimum
Row Write Time is:
and, the Maximum Row Write Time is:
Setting the WR bit (NVMCON<15>) starts the opera-
tion, and the WR bit is automatically cleared when the
operation is finished.
5.4 Control Registers
There are two SFRs used to read and write the
program Flash memory:
NVMCON: Flash Memory Control Register
NVMKEY: Non-Volatile Memory Key Register
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 must consecutively write 55h
and AAh to the NVMKEY register. Refer to Section 5.3
“Programming Operations” for further details.
T
7.37 MHz FRC Accuracy()%FRC Tuning()%××
--------------------------------------------------------------------------------------------------------------------------
TRW
11064 Cycles
7.37 MHz 10.02+()1 0.00375()××
---------------------------------------------------------------------------------------------- 1.48ms==
TRW
11064 Cycles
7.37 MHz 10.02()1 0.00375()××
----------------------------------------------------------------------------------------------1.54ms==
© 2009 Microchip Technology Inc. DS70286C-page 73
dsPIC33FJXXXGPX06/X08/X10
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 74 © 2009 Microchip Technology Inc.
REGISTER 5-2: NVMKEY: NON-VOLATILE 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: 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 15-8 Unimplemented: Read as ‘0
bit 7-0 NVMKEY<7:0>: Key Register (Write Only) bits
© 2009 Microchip Technology Inc. DS70286C-page 75
dsPIC33FJXXXGPX06/X08/X10
5.4.1 PROGRAMMING ALGORITHM FOR
FLASH PROGRAM MEMORY
The user 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 55h to NVMKEY.
d) Write AAh to NVMKEY.
e) Set the WR bit (NVMCON<15>). The erase
cycle begins and the CPU stalls for the
duration 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
memory 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
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 76 © 2009 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
© 2009 Microchip Technology Inc. DS70286C-page 77
dsPIC33FJXXXGPX06/X08/X10
6.0 RESET
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
WDT: Watchdog Timer Reset
TRAPR: Trap Conflict Reset
IOPUWR: Illegal Opcode and Uninitialized W
Register Reset
A simplified block diagram of the Reset module is
shown in Figure 6-1.
Any active source of Reset will make the SYSRST
signal active. Many registers associated with the CPU
and peripherals are forced to a known Reset state.
Most registers are unaffected by a Reset; their status is
unknown on POR and unchanged by all other Resets.
All types of device Reset will set a corresponding status
bit in the RCON register to indicate the type of Reset
(see Register 6-1). A POR will clear all bits, except for
the POR bit (RCON<0>), that are set. The user 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: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 8.
“Reset” (DS70192) in the “dsPIC33F
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com).
Note: Refer to the specific peripheral or CPU
section 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 will be 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 78 © 2009 Microchip Technology Inc.
REGISTER 6-1: RCON: RESET CONTROL REGISTER(1)
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0
TRAPR IOPUWR —VREGS
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 13-9 Unimplemented: Read as ‘0
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
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
Note 1: All of the Reset status bits may 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.
© 2009 Microchip Technology Inc. DS70286C-page 79
dsPIC33FJXXXGPX06/X08/X10
TABLE 6-1: RESET FLAG BIT OPERATION
6.1 Clock Source Selection at Reset
If clock switching is enabled, the system clock source at
device Reset is chosen, as shown in Table 6-2. If clock
switching is disabled, the system clock source is always
selected according to the oscillator Configuration bits.
Refer to Section 9.0 “Oscillator Configuration” for
further details.
TABLE 6-2: OSCILLATOR SELECTION VS
TYPE OF RESET (CLOCK
SWITCHING ENABLED)
6.2 Device Reset Times
The Reset times for various types of device Reset are
summarized in Table 6-3. The system Reset signal,
SYSRST, is released after the POR and PWRT delay
times expire.
The time at which the device actually begins to execute
code also depends on the system oscillator delays,
which include the Oscillator Start-up Timer (OST) and
the PLL lock time. The OST and PLL lock times occur
in parallel with the applicable SYSRST delay times.
The FSCM delay determines the time at which the
FSCM begins to monitor the system clock source after
the SYSRST signal is released.
Flag Bit Setting Event Clearing Event
TRAPR (RCON<15>) Trap conflict event POR, BOR
IOPUWR (RCON<14>) Illegal opcode or uninitialized
W register access
POR, BOR
EXTR (RCON<7>) MCLR Reset POR
SWR (RCON<6>) RESET instruction POR, BOR
WDTO (RCON<4>) WDT time-out PWRSAV instruction, POR, BOR
SLEEP (RCON<3>) PWRSAV #SLEEP instruction POR, BOR
IDLE (RCON<2>) PWRSAV #IDLE instruction POR, BOR
BOR (RCON<1>) BOR, POR
POR (RCON<0>) POR
Note: All Reset flag bits may be set or cleared by the user software.
Reset Type Clock Source Determinant
POR Oscillator Configuration bits
(FNOSC<2:0>)
BOR
MCLR COSC Control bits
(OSCCON<14:12>)
WDTR
SWR
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 80 © 2009 Microchip Technology Inc.
TABLE 6-3: RESET DELAY TIMES FOR VARIOUS DEVICE RESETS
6.2.1 POR AND LONG OSCILLATOR
START-UP TIMES
The oscillator start-up circuitry and its associated delay
timers are not linked to the device Reset delays that
occur at power-up. Some crystal circuits (especially
low-frequency crystals) have a relatively long start-up
time. Therefore, one or more of the following conditions
is possible after SYSRST is released:
The oscillator circuit has not begun to oscillate.
The Oscillator Start-up Timer has not expired (if a
crystal oscillator is used).
The PLL has not achieved a lock (if PLL is used).
The device will not begin to execute code until a valid
clock source has been released to the system.
Therefore, the oscillator and PLL start-up delays must
be considered when the Reset delay time must be
known.
6.2.2 FAIL-SAFE CLOCK MONITOR
(FSCM) AND DEVICE RESETS
If the FSCM is enabled, it begins to monitor the system
clock source when SYSRST is released. If a valid clock
source is not available at this time, the device
automatically switches to the FRC oscillator and the
user can switch to the desired crystal oscillator in the
Trap Service Routine.
6.2.2.1 FSCM Delay for Crystal and PLL
Clock Sources
When the system clock source is provided by a crystal
oscillator and/or the PLL, a small delay, TFSCM, is auto-
matically inserted after the POR and PWRT delay
times. The FSCM does not begin to monitor the system
clock source until this delay expires. The FSCM delay
time is nominally 500 μs and provides additional time
for the oscillator and/or PLL to stabilize. In most cases,
the FSCM delay prevents an oscillator failure trap at a
device Reset when the PWRT is disabled.
6.3 Special Function Register Reset
States
Most of the Special Function Registers (SFRs) associ-
ated with the CPU and peripherals are reset to a
particular value at a device Reset. The SFRs are
grouped by their peripheral or CPU function and their
Reset values are specified in each section of this manual.
The Reset value for each SFR does not depend on the
type of Reset, with the exception of two registers. The
Reset value for the Reset Control register, RCON,
depends on the type of device Reset. The Reset value
for the Oscillator Control register, OSCCON, depends
on the type of Reset and the programmed values of the
oscillator Configuration bits in the FOSC Configuration
register.
Reset Type Clock Source SYSRST Delay System Clock
Delay
FSCM
Delay Notes
POR EC, FRC, LPRC TPOR + TSTARTUP + TRST ——1, 2, 3
ECPLL, FRCPLL TPOR + TSTARTUP + TRST TLOCK TFSCM 1, 2, 3, 5, 6
XT, HS, SOSC TPOR + TSTARTUP + TRST TOST TFSCM 1, 2, 3, 4, 6
XTPLL, HSPLL TPOR + TSTARTUP + TRST TOST + TLOCK TFSCM 1, 2, 3, 4, 5, 6
BOR EC, FRC, LPRC TSTARTUP + TRST ——3
ECPLL, FRCPLL TSTARTUP + TRST TLOCK TFSCM 3, 5, 6
XT, HS, SOSC TSTARTUP + TRST TOST TFSCM 3, 4, 6
XTPLL, HSPLL TSTARTUP + TRST TOST + TLOCK TFSCM 3, 4, 5, 6
MCLR Any Clock TRST ——3
WDT Any Clock TRST ——3
Software Any Clock TRST ——3
Illegal Opcode Any Clock TRST ——3
Uninitialized W Any Clock TRST ——3
Trap Conflict Any Clock TRST ——3
Note 1: TPOR = Power-on Reset delay (10 μs nominal).
2: TSTARTUP = Conditional POR delay of 20 μs nominal (if on-chip regulator is enabled) or 64 ms nominal
Power-up Timer delay (if regulator is disabled). TSTARTUP is also applied to all returns from powered-down
states, including waking from Sleep mode, only if the regulator is enabled.
3: TRST = Internal state Reset time (20 μs nominal).
4: TOST = Oscillator Start-up Timer. A 10-bit counter counts 1024 oscillator periods before releasing the
oscillator clock to the system.
5: TLOCK = PLL lock time (20 μs nominal).
6: TFSCM = Fail-Safe Clock Monitor delay (100 μs nominal).
© 2009 Microchip Technology Inc. DS70286C-page 81
dsPIC33FJXXXGPX06/X08/X10
7.0 INTERRUPT CONTROLLER
The dsPIC33FJXXXGPX06/X08/X10 interrupt
controller reduces the numerous peripheral interrupt
request signals to a single interrupt request signal to
the dsPIC33FJXXXGPX06/X08/X10 CPU. It has the
following features:
Up to 8 processor exceptions and software traps
7 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 is shown in Figure 7-1. The
IVT resides in program memory, starting at location
000004h. The IVT contains 126 vectors consisting of
8 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. All other things being equal, lower
addresses have a higher natural priority. For example,
the interrupt associated with vector 0 will take priority
over interrupts at any other vector address.
dsPIC33FJXXXGPX06/X08/X10 devices implement up
to 67 unique interrupts and 5 nonmaskable traps.
These are summarized in Table 7-1 and Table 7-2.
7.1.1 ALTERNATE VECTOR TABLE
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 dsPIC33FJXXXGPX06/X08/X10 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. The user
programs a GOTO instruction at the Reset address
which redirects program execution to the appropriate
start-up routine.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 6.
“Interrupts” (DS70184) in the “dsPIC33F
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com).
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 82 © 2009 Microchip Technology Inc.
FIGURE 7-1: dsPIC33FJXXXGPX06/X08/X10 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.
© 2009 Microchip Technology Inc. DS70286C-page 83
dsPIC33FJXXXGPX06/X08/X10
TABLE 7-1: INTERRUPT VECTORS
Vector
Number
Interrupt
Request (IRQ)
Number
IVT Address AIVT Address Interrupt Source
8 0 0x000014 0x000114 INT0 – External Interrupt 0
9 1 0x000016 0x000116 IC1 – Input Compare 1
10 2 0x000018 0x000118 OC1 – Output Compare 1
11 3 0x00001A 0x00011A T1 – Timer1
12 4 0x00001C 0x00011C DMA0 – DMA Channel 0
13 5 0x00001E 0x00011E IC2 – Input Capture 2
14 6 0x000020 0x000120 OC2 – Output Compare 2
15 7 0x000022 0x000122 T2 – Timer2
16 8 0x000024 0x000124 T3 – Timer3
17 9 0x000026 0x000126 SPI1E – SPI1 Error
18 10 0x000028 0x000128 SPI1 – SPI1 Transfer Done
19 11 0x00002A 0x00012A U1RX – UART1 Receiver
20 12 0x00002C 0x00012C U1TX – UART1 Transmitter
21 13 0x00002E 0x00012E ADC1 – ADC 1
22 14 0x000030 0x000130 DMA1 – DMA Channel 1
23 15 0x000032 0x000132 Reserved
24 16 0x000034 0x000134 SI2C1 – I2C1 Slave Events
25 17 0x000036 0x000136 MI2C1 – I2C1 Master Events
26 18 0x000038 0x000138 Reserved
27 19 0x00003A 0x00013A Change Notification Interrupt
28 20 0x00003C 0x00013C INT1 – External Interrupt 1
29 21 0x00003E 0x00013E ADC2 – ADC 2
30 22 0x000040 0x000140 IC7 – Input Capture 7
31 23 0x000042 0x000142 IC8 – Input Capture 8
32 24 0x000044 0x000144 DMA2 – DMA Channel 2
33 25 0x000046 0x000146 OC3 – Output Compare 3
34 26 0x000048 0x000148 OC4 – Output Compare 4
35 27 0x00004A 0x00014A T4 – Timer4
36 28 0x00004C 0x00014C T5 – Timer5
37 29 0x00004E 0x00014E INT2 – External Interrupt 2
38 30 0x000050 0x000150 U2RX – UART2 Receiver
39 31 0x000052 0x000152 U2TX – UART2 Transmitter
40 32 0x000054 0x000154 SPI2E – SPI2 Error
41 33 0x000056 0x000156 SPI1 – SPI1 Transfer Done
42 34 0x000058 0x000158 C1RX – ECAN1 Receive Data Ready
43 35 0x00005A 0x00015A C1 – ECAN1 Event
44 36 0x00005C 0x00015C DMA3 – DMA Channel 3
45 37 0x00005E 0x00015E IC3 – Input Capture 3
46 38 0x000060 0x000160 IC4 – Input Capture 4
47 39 0x000062 0x000162 IC5 – Input Capture 5
48 40 0x000064 0x000164 IC6 – Input Capture 6
49 41 0x000066 0x000166 OC5 – Output Compare 5
50 42 0x000068 0x000168 OC6 – Output Compare 6
51 43 0x00006A 0x00016A OC7 – Output Compare 7
52 44 0x00006C 0x00016C OC8 – Output Compare 8
53 45 0x00006E 0x00016E Reserved
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 84 © 2009 Microchip Technology Inc.
TABLE 7-2: TRAP VECTORS
54 46 0x000070 0x000170 DMA4 – DMA Channel 4
55 47 0x000072 0x000172 T6 – Timer6
56 48 0x000074 0x000174 T7 – Timer7
57 49 0x000076 0x000176 SI2C2 – I2C2 Slave Events
58 50 0x000078 0x000178 MI2C2 – I2C2 Master Events
59 51 0x00007A 0x00017A T8 – Timer8
60 52 0x00007C 0x00017C T9 – Timer9
61 53 0x00007E 0x00017E INT3 – External Interrupt 3
62 54 0x000080 0x000180 INT4 – External Interrupt 4
63 55 0x000082 0x000182 C2RX – ECAN2 Receive Data Ready
64 56 0x000084 0x000184 C2 – ECAN2 Event
65 57 0x000086 0x000186 Reserved
66 58 0x000088 0x000188 Reserved
67 59 0x00008A 0x00018A DCIE – DCI Error
68 60 0x00008C 0x00018C DCID – DCI Transfer Done
69 61 0x00008E 0x00018E DMA5 – DMA Channel 5
70 62 0x000090 0x000190 Reserved
71 63 0x000092 0x000192 Reserved
72 64 0x000094 0x000194 Reserved
73 65 0x000096 0x000196 U1E – UART1 Error
74 66 0x000098 0x000198 U2E – UART2 Error
75 67 0x00009A 0x00019A Reserved
76 68 0x00009C 0x00019C DMA6 – DMA Channel 6
77 69 0x00009E 0x00019E DMA7 – DMA Channel 7
78 70 0x0000A0 0x0001A0 C1TX – ECAN1 Transmit Data Request
79 71 0x0000A2 0x0001A2 C2TX – ECAN2 Transmit Data Request
80-125 72-117 0x0000A4-0x0000
FE
0x0001A4-0x0001
FE
Reserved
Vector Number IVT Address AIVT Address Trap 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 Trap
6 0x000010 0x000110 Reserved
7 0x000012 0x000112 Reserved
TABLE 7-1: INTERRUPT VECTORS (CONTINUED)
Vector
Number
Interrupt
Request (IRQ)
Number
IVT Address AIVT Address Interrupt Source
© 2009 Microchip Technology Inc. DS70286C-page 85
dsPIC33FJXXXGPX06/X08/X10
7.3 Interrupt Control and Status
Registers
dsPIC33FJXXXGPX06/X08/X10 devices implement a
total of 30 registers for the interrupt controller:
INTCON1
INTCON2
IFS0 through IFS4
IEC0 through IEC4
IPC0 through IPC17
•INTTREG
Global interrupt control functions are controlled from
INTCON1 and INTCON2. INTCON1 contains the
Interrupt Nesting Disable (NSTDIS) bit 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.
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.
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.
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.
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 (ILR<3:0>) bit
fields 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 Table 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>).
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 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 7-32, in the following pages.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 86 © 2009 Microchip Technology Inc.
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(3) R/W-0(3) R/W-0(3) R-0 R/W-0 R/W-0 R/W-0 R/W-0
IPL2(2) IPL1(2) IPL0(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 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)
Note 1: For complete register details, see Register 3-1: “SR: CPU STATUS REGISTER”.
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 NSTDIS (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: “CORCON: CORE CONTROL REGISTER”.
2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.
© 2009 Microchip Technology Inc. DS70286C-page 87
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 88 © 2009 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)
© 2009 Microchip Technology Inc. DS70286C-page 89
dsPIC33FJXXXGPX06/X08/X10
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 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
INT4EP INT3EP 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 13-5 Unimplemented: Read as ‘0
bit 4 INT4EP: External Interrupt 4 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
bit 3 INT3EP: External Interrupt 3 Edge Detect Polarity Select bit
1 = Interrupt on negative edge
0 = Interrupt on positive edge
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 90 © 2009 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 DMA01IF 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 Fault 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 DMA01IF: 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
© 2009 Microchip Technology Inc. DS70286C-page 91
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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)
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DS70286C-page 92 © 2009 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 DMA21IF
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
IC8IF IC7IF AD2IF INT1IF CNIF —MI2C1IFSI2C1IF
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 DMA21IF: 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 AD2IF: ADC2 Conversion Complete Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 4 INT1IF: External Interrupt 1 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
© 2009 Microchip Technology Inc. DS70286C-page 93
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bit 3 CNIF: Input Change Notification Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 2 Unimplemented: Read as ‘0
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)
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DS70286C-page 94 © 2009 Microchip Technology Inc.
REGISTER 7-7: IFS2: INTERRUPT FLAG STATUS REGISTER 2
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
T6IF DMA4IF OC8IF OC7IF OC6IF OC5IF IC6IF
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
IC5IF IC4IF IC3IF DMA3IF C1IF C1RXIF 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 T6IF: Timer6 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
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 Unimplemented: Read as ‘0
bit 12 OC8IF: Output Compare Channel 8 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 11 OC7IF: Output Compare Channel 7 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 10 OC6IF: Output Compare Channel 6 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 9 OC5IF: Output Compare Channel 5 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 8 IC6IF: Input Capture Channel 6 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 7 IC5IF: Input Capture Channel 5 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 6 IC4IF: Input Capture Channel 4 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 5 IC3IF: Input Capture Channel 3 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
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 = Interrupt request has occurred
0 = Interrupt request has not occurred
© 2009 Microchip Technology Inc. DS70286C-page 95
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bit 2 C1RXIF: ECAN1 Receive Data Ready Interrupt Flag Status bit
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
REGISTER 7-7: IFS2: INTERRUPT FLAG STATUS REGISTER 2 (CONTINUED)
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REGISTER 7-8: IFS3: INTERRUPT FLAG STATUS REGISTER 3
U-0 U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0
DMA5IF DCIIF DCIEIF —C2IF
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
C2RXIF INT4IF INT3IF T9IF T8IF MI2C2IF SI2C2IF T7IF
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 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 10-9 Unimplemented: Read as ‘0
bit 8 C2IF: ECAN2 Event Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 7 C2RXIF: ECAN2 Receive Data Ready Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 6 INT4IF: External Interrupt 4 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 5 INT3IF: External Interrupt 3 Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 4 T9IF: Timer9 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 3 T8IF: Timer8 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 2 MI2C2IF: I2C2 Master Events Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 1 SI2C2IF: I2C2 Slave Events Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 0 T7IF: Timer7 Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
© 2009 Microchip Technology Inc. DS70286C-page 97
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REGISTER 7-9: IFS4: INTERRUPT FLAG STATUS REGISTER 4
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 U-0 R/W-0 R/W-0 U-0
C2TXIF C1TXIF DMA7IF DMA6IF —U2EIFU1EIF
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 C2TXIF: ECAN2 Transmit Data Request Interrupt Flag Status bit
1 = Interrupt request has occurred
0 = Interrupt request has not occurred
bit 6 C1TXIF: ECAN1 Transmit Data Request Interrupt Flag Status bit
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 Unimplemented: Read as ‘0
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
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DS70286C-page 98 © 2009 Microchip Technology Inc.
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
© 2009 Microchip Technology Inc. DS70286C-page 99
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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 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
REGISTER 7-10: IEC0: INTERRUPT ENABLE CONTROL REGISTER 0 (CONTINUED)
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DS70286C-page 100 © 2009 Microchip Technology Inc.
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 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0
IC8IE IC7IE AD2IE INT1IE CNIE —MI2C1IESI2C1IE
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 AD2IE: ADC2 Conversion Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 INT1IE: External Interrupt 1 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
© 2009 Microchip Technology Inc. DS70286C-page 101
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bit 3 CNIE: Input Change Notification Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 2 Unimplemented: Read as ‘0
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)
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REGISTER 7-12: IEC2: INTERRUPT ENABLE CONTROL REGISTER 2
R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
T6IE DMA4IE OC8IE OC7IE OC6IE OC5IE IC6IE
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
IC5IE IC4IE IC3IE DMA3IE C1IE C1RXIE 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 T6IE: Timer6 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 14 DMA4IE: DMA Channel 4 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 13 Unimplemented: Read as ‘0
bit 12 OC8IE: Output Compare Channel 8 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 11 OC7IE: Output Compare Channel 7 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 10 OC6IE: Output Compare Channel 6 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 9 OC5IE: Output Compare Channel 5 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 8 IC6IE: Input Capture Channel 6 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 7 IC5IE: Input Capture Channel 5 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 6 IC4IE: Input Capture Channel 4 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 5 IC3IE: Input Capture Channel 3 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 DMA3IE: DMA Channel 3 Data Transfer Complete Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 C1IE: ECAN1 Event Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
© 2009 Microchip Technology Inc. DS70286C-page 103
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bit 2 C1RXIE: ECAN1 Receive Data Ready Interrupt Enable bit
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
REGISTER 7-12: IEC2: INTERRUPT ENABLE CONTROL REGISTER 2 (CONTINUED)
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REGISTER 7-13: IEC3: INTERRUPT ENABLE CONTROL REGISTER 3
U-0 U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0
DMA5IE DCIIE DCIEIE —C2IE
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
C2RXIE INT4IE INT3IE T9IE T8IE MI2C2IE SI2C2IE T7IE
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 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 10-9 Unimplemented: Read as ‘0
bit 8 C2IE: ECAN2 Event Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 7 C2RXIE: ECAN2 Receive Data Ready Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 6 INT4IE: External Interrupt 4 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 5 INT3IE: External Interrupt 3 Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 T9IE: Timer9 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 T8IE: Timer8 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 2 MI2C2IE: I2C2 Master Events Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 1 SI2C2IE: I2C2 Slave Events Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 0 T7IE: Timer7 Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
© 2009 Microchip Technology Inc. DS70286C-page 105
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REGISTER 7-14: IEC4: INTERRUPT ENABLE CONTROL REGISTER 4
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 U-0 R/W-0 R/W-0 U-0
C2TXIE C1TXIE DMA7IE DMA6IE —U2EIEU1EIE
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 C2TXIE: ECAN2 Transmit Data Request Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 6 C1TXIE: ECAN1 Transmit Data Request Interrupt Enable bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 5 DMA7IE: DMA Channel 7 Data Transfer Complete Enable Status bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 4 DMA6IE: DMA Channel 6 Data Transfer Complete Enable Status bit
1 = Interrupt request enabled
0 = Interrupt request not enabled
bit 3 Unimplemented: Read as ‘0
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
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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
© 2009 Microchip Technology Inc. DS70286C-page 107
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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
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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
© 2009 Microchip Technology Inc. DS70286C-page 109
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 110 © 2009 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 U-0 U-0 U-0
CNIP<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 11-7 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
© 2009 Microchip Technology Inc. DS70286C-page 111
dsPIC33FJXXXGPX06/X08/X10
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 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—AD2IP<2:0> 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 Unimplemented: Read as ‘0
bit 6-4 AD2IP<2:0>: ADC2 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 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 112 © 2009 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
© 2009 Microchip Technology Inc. DS70286C-page 113
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 114 © 2009 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> C1RXIP<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
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
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
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
© 2009 Microchip Technology Inc. DS70286C-page 115
dsPIC33FJXXXGPX06/X08/X10
REGISTER 7-24: IPC9: INTERRUPT PRIORITY CONTROL REGISTER 9
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
—IC5IP<2:0> IC4IP<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
—IC3IP<2:0>—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 Unimplemented: Read as ‘0
bit 14-12 IC5IP<2:0>: Input Capture Channel 5 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 IC4IP<2:0>: Input Capture 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 IC3IP<2:0>: Input Capture 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 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 116 © 2009 Microchip Technology Inc.
REGISTER 7-25: IPC10: INTERRUPT PRIORITY CONTROL REGISTER 10
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
OC7IP<2:0> —OC6IP<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
OC5IP<2:0> IC6IP<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 OC7IP<2:0>: Output Compare Channel 7 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 OC6IP<2:0>: Output Compare Channel 6 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 OC5IP<2:0>: Output Compare Channel 5 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 IC6IP<2:0>: Input Capture Channel 6 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2009 Microchip Technology Inc. DS70286C-page 117
dsPIC33FJXXXGPX06/X08/X10
REGISTER 7-26: IPC11: INTERRUPT PRIORITY CONTROL REGISTER 11
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
T6IP<2:0> —DMA4IP<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
—OC8IP<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 T6IP<2:0>: Timer6 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 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 7-3 Unimplemented: Read as ‘0
bit 2-0 OC8IP<2:0>: Output Compare Channel 8 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 118 © 2009 Microchip Technology Inc.
REGISTER 7-27: IPC12: INTERRUPT PRIORITY CONTROL REGISTER 12
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
T8IP<2:0> MI2C2IP<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
SI2C2IP<2:0> T7IP<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 T8IP<2:0>: Timer8 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 MI2C2IP<2:0>: I2C2 Master Events 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 SI2C2IP<2:0>: I2C2 Slave 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 T7IP<2:0>: Timer7 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2009 Microchip Technology Inc. DS70286C-page 119
dsPIC33FJXXXGPX06/X08/X10
REGISTER 7-28: IPC13: INTERRUPT PRIORITY CONTROL REGISTER 13
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
C2RXIP<2:0> INT4IP<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
INT3IP<2:0> T9IP<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 C2RXIP<2:0>: ECAN2 Receive Data Ready 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 INT4IP<2:0>: External Interrupt 4 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 INT3IP<2:0>: External Interrupt 3 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 T9IP<2:0>: Timer9 Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
001 = Interrupt is priority 1
000 = Interrupt source is disabled
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 120 © 2009 Microchip Technology Inc.
REGISTER 7-29: 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 R/W-1 R/W-0 R/W-0
C2IP<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 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 11-3 Unimplemented: Read as ‘0
bit 2-0 C2IP<2:0>: ECAN2 Event Interrupt Priority bits
111 = Interrupt is priority 7 (highest priority interrupt)
001 = Interrupt is priority 1
000 = Interrupt source is disabled
© 2009 Microchip Technology Inc. DS70286C-page 121
dsPIC33FJXXXGPX06/X08/X10
REGISTER 7-30: IPC15: INTERRUPT PRIORITY CONTROL REGISTER 15
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-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 15-7 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 Unimplemented: Read as ‘0
bit 2-0 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 122 © 2009 Microchip Technology Inc.
REGISTER 7-31: IPC16: INTERRUPT PRIORITY CONTROL REGISTER 16
U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-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 15-11 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
© 2009 Microchip Technology Inc. DS70286C-page 123
dsPIC33FJXXXGPX06/X08/X10
REGISTER 7-32: IPC17: INTERRUPT PRIORITY CONTROL REGISTER 17
U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0
C2TXIP<2:0> C1TXIP<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
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 Unimplemented: Read as ‘0
bit 14-12 C2TXIP<2:0>: ECAN2 Transmit Data Request 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 C1TXIP<2:0>: ECAN1 Transmit Data Request 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 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 124 © 2009 Microchip Technology Inc.
REGISTER 7-33: 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
© 2009 Microchip Technology Inc. DS70286C-page 125
dsPIC33FJXXXGPX06/X08/X10
7.4 Interrupt Setup Procedures
7.4.1 INITIALIZATION
To configure an interrupt source:
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 will
depend 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 may 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
interrupt enable control bit associated with the
source in the appropriate IECx register.
7.4.2 INTERRUPT SERVICE ROUTINE
The method that is used to declare an ISR and initialize
the IVT with the correct vector address will depend on
the programming language (i.e., C or assembler) and
the language development toolsuite that is used to
develop the application. In general, the user must clear
the interrupt flag in the appropriate IFSx register for the
source of interrupt that the ISR handles. Otherwise, the
ISR will be re-entered 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.
7.4.3 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.
7.4.4 INTERRUPT DISABLE
All user interrupts can be disabled using the following
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 may be
used to restore the previous SR value.
Note that only user interrupts with a priority level of 7 or
less can be disabled. Trap sources (level 8-level 15)
cannot be disabled.
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 126 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 127
dsPIC33FJXXXGPX06/X08/X10
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 dsPIC33FJXXXGPX06/X08/X10 peripherals that
can utilize DMA are listed in Table 8-1 along with their
associated Interrupt Request (IRQ) numbers.
TABLE 8-1: PERIPHERALS WITH DMA
SUPPORT
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:
Word or byte sized data transfers.
Transfers from peripheral to DMA RAM or DMA
RAM to peripheral.
Indirect Addressing of DMA RAM locations with or
without automatic post-increment.
Peripheral Indirect Addressing – In some
peripherals, the DMA RAM read/write addresses
may be partially derived from the peripheral.
One-Shot Block Transfers – Terminating DMA
transfer after one block transfer.
Continuous Block Transfers – Reloading DMA
RAM buffer start address after every block
transfer is complete.
Ping-Pong Mode – Switching between two DMA
RAM start addresses between successive block
transfers, thereby filling two buffers alternately.
Automatic or manual initiation of block transfers
Each channel can select from 20 possible
sources of data sources or destinations.
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.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 22.
“Direct Memory Access (DMA)”
(DS70182) in the “dsPIC33F Family
Reference Manual”, which is available
from the Microchip web site
(www.microchip.com).
Peripheral IRQ Number
INT0 0
Input Capture 1 1
Input Capture 2 5
Output Compare 1 2
Output Compare 2 6
Timer2 7
Timer3 8
SPI1 10
SPI2 33
UART1 Reception 11
UART1 Transmission 12
UART2 Reception 30
UART2 Transmission 31
ADC1 13
ADC2 21
DCI 60
ECAN1 Reception 34
ECAN1 Transmission 70
ECAN2 Reception 55
ECAN2 Transmission 71
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 128 © 2009 Microchip Technology Inc.
FIGURE 8-1: TOP LEVEL SYSTEM ARCHITECTURE USING A DEDICATED TRANSACTION BUS
8.1 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 Offset
register (DMAxSTA)
A 16-bit DMA RAM Secondary Start Address
Offset 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.
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
Note: CPU and DMA address buses are not shown for clarity.
DMA
Control
DMA Controller
DMA
Channels
© 2009 Microchip Technology Inc. DS70286C-page 129
dsPIC33FJXXXGPX06/X08/X10
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
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 130 © 2009 Microchip Technology Inc.
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(2) IRQSEL5(2) IRQSEL4(2) IRQSEL3(2) IRQSEL2(2) IRQSEL1(2) IRQSEL0(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)
0000000-1111111 = DMAIRQ0-DMAIRQ127 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: Please see Table 8-1 for a complete listing of IRQ numbers for all interrupt sources.
© 2009 Microchip Technology Inc. DS70286C-page 131
dsPIC33FJXXXGPX06/X08/X10
REGISTER 8-3: DMAxSTA: DMA CHANNEL x RAM START ADDRESS OFFSET REGISTER A
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)
REGISTER 8-4: DMAxSTB: DMA CHANNEL x RAM START ADDRESS OFFSET REGISTER B
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)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 132 © 2009 Microchip Technology Inc.
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.
© 2009 Microchip Technology Inc. DS70286C-page 133
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 134 © 2009 Microchip Technology Inc.
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)
© 2009 Microchip Technology Inc. DS70286C-page 135
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 136 © 2009 Microchip Technology Inc.
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
© 2009 Microchip Technology Inc. DS70286C-page 137
dsPIC33FJXXXGPX06/X08/X10
9.0 OSCILLATOR
CONFIGURATION
The dsPIC33FJXXXGPX06/X08/X10 oscillator system
provides:
Various external and internal oscillator options as
clock sources
An on-chip PLL to scale the internal operating
frequency to the required system clock frequency
The internal FRC oscillator 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
A Clock Control register (OSCCON)
Nonvolatile Configuration bits for main oscillator
selection.
A simplified diagram of the oscillator system is shown
in Figure 9-1.
FIGURE 9-1: dsPIC33FJXXXGPX06/X08/X10 OSCILLATOR SYSTEM DIAGRAM
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 7.
“Oscillator” (DS70186) in the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
dsPIC33F
Secondary Oscillator
LPOSCEN
SOSCO
SOSCI
Timer 1
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(1) FCY
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.
OSC2
OSC1 Primary Oscillator
R(2)
POSCMD<1:0>
FP
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 138 © 2009 Microchip Technology Inc.
9.1 CPU Clocking System
There are seven system clock options provided by the
dsPIC33FJXXXGPX06/X08/X10:
FRC Oscillator
FRC Oscillator with PLL
Primary (XT, HS or EC) Oscillator
Primary Oscillator with PLL
Secondary (LP) Oscillator
LPRC Oscillator
FRC Oscillator with postscaler
9.1.1 SYSTEM CLOCK SOURCES
The FRC (Fast RC) internal oscillator runs at a nominal
frequency of 7.37 MHz. The 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> (CLKDIV<10:8>) bits.
The primary oscillator can use one of the following as
its clock source:
1. XT (Crystal): Crystals and ceramic resonators in
the range of 3 MHz to 10 MHz. The crystal is
connected to the OSC1 and OSC2 pins.
2. HS (High-Speed Crystal): Crystals in the range
of 10 MHz to 40 MHz. The crystal is connected
to the OSC1 and OSC2 pins.
3. EC (External Clock): 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 LPRC (Low-Power RC) 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
Phase Locked Loop (PLL) to provide a wide range of
output frequencies for device operation. PLL
configuration is described in Section 9.1.3 “PLL
Configuration”.
The FRC frequency depends on the FRC accuracy
(see Table 25-19) and the value of the FRC Oscillator
Tuning register (see Register 9-4).
9.1.2 SYSTEM CLOCK SELECTION
The oscillator source that is 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 22.1 “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 between
twelve different clock modes, shown in Table 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 the
peripheral clock time base (FP). FCY defines the
operating speed of the device, and speeds up to 40
MHz are supported by the
dsPIC33FJXXXGPX06/X08/X10 architecture.
Instruction execution speed or device operating
frequency, FCY, is given by:
EQUATION 9-1: DEVICE OPERATING
FREQUENCY
9.1.3 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 a significant amount of
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 PLLs Voltage
Controlled Oscillator (VCO). The input to the VCO must
be selected to be in the range of 0.8 MHz to 8 MHz.
Since the minimum prescale factor is 2, this implies that
FIN must be chosen to be in the range of 1.6 MHz to 16
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
FCY FOSC
2
-------------
=
FOSC FIN M
N1N2
-------------------
⎝⎠
⎛⎞
=
© 2009 Microchip Technology Inc. DS70286C-page 139
dsPIC33FJXXXGPX06/X08/X10
For example, suppose a 10 MHz crystal is being used,
with “XT with PLL” being the selected oscillator mode.
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 range 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: dsPIC33FJXXXGPX06/X08/X10 PLL BLOCK DIAGRAM
TABLE 9-1: CONFIGURATION BIT VALUES FOR CLOCK SELECTION
FCY FOSC
2
------------- 1
2
---10000000 32
22
----------------------------------
⎝⎠
⎛⎞
40 MIPS== =
Oscillator Mode Oscillator Source POSCMD<1:0> FNOSC<2:0> 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.
0.8-8.0 MHz
Here(1) 100-200 MHz
Here(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
Here(1)
FOSC
Note 1: This frequency range must be satisfied at all times.
FVCO
N1
M
N2
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 140 © 2009 Microchip Technology Inc.
REGISTER 9-1: OSCCON: OSCILLATOR CONTROL REGISTER(1)
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 U-0 R-0 U-0 R/C-0 U-0 R/W-0 R/W-0
CLKLOCK —LOCK—CF LPOSCEN OSWEN
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 Unimplemented: Read as ‘0
bit 14-12 COSC<2:0>: Current Oscillator Selection bits (read-only)
000 = Fast RC oscillator (FRC)
001 = Fast RC oscillator (FRC) with PLL
010 = Primary oscillator (XT, HS, EC)
011 = Primary oscillator (XT, HS, EC) with PLL
100 = Secondary oscillator (SOSC)
101 = Low-Power RC oscillator (LPRC)
110 = Fast RC oscillator (FRC) with Divide-by-16
111 = Fast RC oscillator (FRC) with Divide-by-n
bit 11 Unimplemented: Read as ‘0
bit 10-8 NOSC<2:0>: New Oscillator Selection bits(2)
000 = Fast RC oscillator (FRC)
001 = Fast RC oscillator (FRC) with PLL
010 = Primary oscillator (XT, HS, EC)
011 = Primary oscillator (XT, HS, EC) with PLL
100 = Secondary oscillator (SOSC)
101 = Low-Power RC oscillator (LPRC)
110 = Fast RC oscillator (FRC) with Divide-by-16
111 = Fast RC oscillator (FRC) with Divide-by-n
bit 7 CLKLOCK: Clock Lock Enable bit
1 = If (FCKSM0 = 1), then clock and PLL configurations are locked
If (FCKSM0 = 0), then clock and PLL configurations may be modified
0 = Clock and PLL selections are not locked, configurations may be modified
bit 6 Unimplemented: Read as ‘0
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
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
Note 1: Writes to this register require an unlock sequence. Refer to Section 7. “Oscillator” (DS70186) in the
“dsPIC33F 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.
© 2009 Microchip Technology Inc. DS70286C-page 141
dsPIC33FJXXXGPX06/X08/X10
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) (CONTINUED)
Note 1: Writes to this register require an unlock sequence. Refer to Section 7. “Oscillator” (DS70186) in the
“dsPIC33F 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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 142 © 2009 Microchip Technology Inc.
REGISTER 9-2: CLKDIV: CLOCK DIVISOR REGISTER
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 will clear 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
000 = FCY/1
001 = FCY/2
010 = FCY/4
011 = FCY/8 (default)
100 = FCY/16
101 = FCY/32
110 = FCY/64
111 = FCY/128
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
000 = FRC divide by 1 (default)
001 = FRC divide by 2
010 = FRC divide by 4
011 = FRC divide by 8
100 = FRC divide by 16
101 = FRC divide by 32
110 = FRC divide by 64
111 = FRC divide by 256
bit 7-6 PLLPOST<1:0>: PLL VCO Output Divider Select bits (also denoted as ‘N2’, PLL postscaler)
00 = Output/2
01 = Output/4 (default)
10 = Reserved
11 = Output/8
bit 5 Unimplemented: Read as ‘0
bit 4-0 PLLPRE<4:0>: PLL Phase Detector Input Divider bits (also denoted as ‘N1’, PLL prescaler)
00000 = Input/2 (default)
00001 = Input/3
11111 = Input/33
Note 1: This bit is cleared when the ROI bit is set and an interrupt occurs.
© 2009 Microchip Technology Inc. DS70286C-page 143
dsPIC33FJXXXGPX06/X08/X10
REGISTER 9-3: PLLFBD: PLL FEEDBACK DIVISOR REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0(1)
—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)
000000000 = 2
000000001 = 3
000000010 = 4
000110000 = 50 (default)
111111111 = 513
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 144 © 2009 Microchip Technology Inc.
REGISTER 9-4: OSCTUN: FRC OSCILLATOR TUNING 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 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)
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)
111111 = Center frequency - 0.375% (7.345 MHz)
100001 = Center frequency - 11.625% (6.52 MHz)
100000 = Center frequency - 12% (6.49 MHz)
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.
© 2009 Microchip Technology Inc. DS70286C-page 145
dsPIC33FJXXXGPX06/X08/X10
9.2 Clock Switching Operation
Applications are free to switch between any of the four
clock sources (Primary, LP, FRC and LPRC) under
software control at any time. To limit the possible side
effects that could result from this flexibility,
dsPIC33FJXXXGPX06/X08/X10 devices have a
safeguard lock built into the switch process.
9.2.1 ENABLING CLOCK SWITCHING
To enable clock switching, the FCKSM1 Configuration
bit in the Configuration register must be programmed to
0’. (Refer to Section 22.1 “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.
9.2.2 OSCILLATOR SWITCHING SEQUENCE
At a minimum, 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 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, then 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
LOCK (OSCCON<5>) and the CF
(OSCCON<3>) status bits 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).
9.3 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>
Configuration bits. While an application
can switch to and from Primary Oscillator
mode in software, it cannot switch
between 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 7. “Oscillator”
(DS70186) in the “dsPIC33F Family
Reference Manual” for details.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 146 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 147
dsPIC33FJXXXGPX06/X08/X10
10.0 POWER-SAVING FEATURES
The dsPIC33FJXXXGPX06/X08/X10 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. dsPIC33FJXXXGPX06/X08/X10
devices can manage power consumption in four
different 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
selectively tailor an application’s power consumption
while still maintaining critical application features, such
as timing-sensitive communications.
10.1 Clock Frequency and Clock
Switching
dsPIC33FJXXXGPX06/X08/X10 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
dsPIC33FJXXXGPX06/X08/X10 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 assembly 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
Sleep mode has these features:
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
during Sleep mode 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 may continue
to operate in Sleep mode. 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 in Sleep mode.
The device will wake-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, the processor restarts with the
same clock source that was active when Sleep mode
was entered.
EXAMPLE 10-1: PWRSAV INSTRUCTION SYNTAX
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 9.
“Watchdog Timer and Power-Saving
Modes” (DS70196) in the “dsPIC33F
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com). Note: SLEEP_MODE and IDLE_MODE are
constants 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 148 © 2009 Microchip Technology Inc.
10.2.2 IDLE MODE
Idle mode has these features:
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 will wake from Idle mode on any of these
events:
Any interrupt that is individually enabled.
Any device Reset.
A WDT time-out.
On wake-up from Idle, the clock is reapplied to the CPU
and instruction execution begins immediately, 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
Generally, changing clock speed and invoking one of the
power-saving modes are the preferred strategies for
reducing power consumption. There may be
circumstances, however, where this is not 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 may introduce communication errors, while
using a power-saving mode may 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 (CLK-
DIV<11>). The ratio between peripheral and core clock
speed is determined by the DOZE<2:0> bits (CLK-
DIV<14:12>). There are eight possible configurations,
from 1:1 to 1:128, with 1:1 being the default setting.
It is also possible to 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. Enabling the
automatic return to full-speed CPU operation on
interrupts is enabled by setting the ROI bit (CLK-
DIV<15>). By default, interrupt events have no effect
on Doze mode operation.
For example, suppose the device is operating at
20 MIPS and the CAN module has been configured for
500 kbps based on this device operating speed. If the
device is now placed in Doze mode with a clock
frequency ratio of 1:4, the CAN 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 via 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 will have no effect and read
values will be invalid.
A peripheral module is only enabled 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
module is disabled after a delay of 1
instruction cycle. Similarly, if a PMD bit is
cleared, the corresponding module is
enabled after a delay of 1 instruction cycle
(assuming the module control registers
are already configured to enable module
operation).
© 2009 Microchip Technology Inc. DS70286C-page 149
dsPIC33FJXXXGPX06/X08/X10
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 R/W-0 R/W-0 R/W-0
I2C1MD U2MD U1MD SPI2MD SPI1MD C2MD C1MD AD1MD
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 C2MD: ECAN2 Module Disable bit
1 = ECAN2 module is disabled
0 = ECAN2 module is enabled
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 150 © 2009 Microchip Technology Inc.
bit 1 C1MD: ECAN2 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
REGISTER 10-1: PMD1: PERIPHERAL MODULE DISABLE CONTROL REGISTER 1 (CONTINUED)
© 2009 Microchip Technology Inc. DS70286C-page 151
dsPIC33FJXXXGPX06/X08/X10
REGISTER 10-2: PMD2: PERIPHERAL MODULE DISABLE CONTROL REGISTER 2
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IC8MD IC7MD IC6MD IC5MD IC4MD IC3MD IC2MD IC1MD
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
OC8MD OC7MD OC6MD OC5MD 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 7 Module Disable bit
1 = Input Capture 7 module is disabled
0 = Input Capture 7 module is enabled
bit 13 IC6MD: Input Capture 6 Module Disable bit
1 = Input Capture 6 module is disabled
0 = Input Capture 6 module is enabled
bit 12 IC5MD: Input Capture 5 Module Disable bit
1 = Input Capture 5 module is disabled
0 = Input Capture 5 module is enabled
bit 11 IC4MD: Input Capture 4 Module Disable bit
1 = Input Capture 4 module is disabled
0 = Input Capture 4 module is enabled
bit 10 IC3MD: Input Capture 3 Module Disable bit
1 = Input Capture 3 module is disabled
0 = Input Capture 3 module is enabled
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 OC8MD: Output Compare 8 Module Disable bit
1 = Output Compare 8 module is disabled
0 = Output Compare 8 module is enabled
bit 6 OC7MD: Output Compare 4 Module Disable bit
1 = Output Compare 7 module is disabled
0 = Output Compare 7 module is enabled
bit 5 OC6MD: Output Compare 6 Module Disable bit
1 = Output Compare 6 module is disabled
0 = Output Compare 6 module is enabled
bit 4 OC5MD: Output Compare 5 Module Disable bit
1 = Output Compare 5 module is disabled
0 = Output Compare 5 module is enabled
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 152 © 2009 Microchip Technology Inc.
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
REGISTER 10-2: PMD2: PERIPHERAL MODULE DISABLE CONTROL REGISTER 2 (CONTINUED)
© 2009 Microchip Technology Inc. DS70286C-page 153
dsPIC33FJXXXGPX06/X08/X10
REGISTER 10-3: PMD3: PERIPHERAL MODULE DISABLE CONTROL REGISTER 3
R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0
T9MD T8MD T7MD T6MD ————
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
————— I2C2MD AD2MD
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 T9MD: Timer9 Module Disable bit
1 = Timer9 module is disabled
0 = Timer9 module is enabled
bit 14 T8MD: Timer8 Module Disable bit
1 = Timer8 module is disabled
0 = Timer8 module is enabled
bit 13 T7MD: Timer7 Module Disable bit
1 = Timer7 module is disabled
0 = Timer7 module is enabled
bit 12 T6MD: Timer6 Module Disable bit
1 = Timer6 module is disabled
0 = Timer6 module is enabled
bit 11-2 Unimplemented: Read as ‘0
bit 1 I2C2MD: I2C2 Module Disable bit
1 = I2C2 module is disabled
0 = I2C2 module is enabled
bit 0 AD2MD: AD2 Module Disable bit
1 = AD2 module is disabled
0 = AD2 module is enabled
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 154 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 155
dsPIC33FJXXXGPX06/X08/X10
11.0 I/O PORTS
All of the device pins (except VDD, VSS, MCLR and
OSC1/CLKIN) are shared between 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
A parallel I/O port that shares a pin with a peripheral is,
in general, 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 illus-
trates how ports are shared with other peripherals and
the associated I/O pin to which they are connected.
When a peripheral is enabled and actively driving an
associated pin, the use of the pin as a general purpose
output pin is disabled. The I/O pin may be read, but the
output driver for the parallel port bit will be disabled. If
a peripheral is enabled, but the peripheral is not
actively driving a pin, that pin may 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 will be
disabled. That means the corresponding LATx and
TRISx registers and the port pins will 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. An
example is the INT4 pin.
FIGURE 11-1: BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 10. “I/O
Ports” (DS70193) in the “dsPIC33F
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com).
Note: The voltage on a digital input pin can be
between -0.3V to 5.6V.
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 156 © 2009 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
digital only pins by using external pull-up resistors. The
maximum open-drain voltage allowed is the same as
the maximum VIH specification.
See “Pin Diagrams” for the available pins and their
functionality.
11.3 Configuring Analog Port Pins
The use of the ADxPCFGH, ADxPCFGL and TRIS
registers control the operation of the ADC port pins.
The port pins that are desired 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.
Clearing any bit in the ADxPCFGH or ADxPCFGL
register configures the corresponding bit to be an
analog pin. This is also the Reset state of any I/O pin
that has an analog (ANx) function associated with it.
When reading the PORT register, all pins configured as
analog input channels will read as cleared (a low level).
Pins configured as digital inputs will not convert an
analog input. Analog levels on any pin that is 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 a NOP.
11.5 Input Change Notification
The input change notification function of the I/O ports
allows the dsPIC33FJXXXGPX06/X08/X10 devices to
generate interrupt requests to the processor in
response to a change-of-state on selected input pins.
This feature is capable of detecting input
change-of-states even in Sleep mode, when the clocks
are disabled. Depending on the device pin count, there
are up to 24 external signals (CN0 through CN23) that
can be selected (enabled) for generating an interrupt
request on a change-of-state.
There are four control registers associated with the CN
module. The CNEN1 and CNEN2 registers contain the
CN interrupt enable (CNxIE) 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 that is 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 weak pull-up
enable (CNxPUE) 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: In devices with two ADC modules, if the
corresponding PCFG bit in either
AD1PCFGH(L) and AD2PCFGH(L) is
cleared, the pin is configured as an analog
input.
Note: The voltage on an analog input pin can be
between -0.3V to (VDD + 0.3 V).
Note: Pull-ups on change notification pins
should always be disabled whenever 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
© 2009 Microchip Technology Inc. DS70286C-page 157
dsPIC33FJXXXGPX06/X08/X10
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. Timer1 can
operate in three modes:
16-bit Timer
16-bit Synchronous Counter
16-bit Asynchronous Counter
Timer1 also supports these features:
Timer gate operation
Selectable prescaler settings
Timer operation during CPU Idle and Sleep
modes
Interrupt on 16-bit Period register match or falling
edge of external gate signal
Figure 12-1 presents a block diagram of the 16-bit
timer module.
To configure Timer1 for operation:
1. Set the TON bit (= 1) in the T1CON register.
2. Select the timer prescaler ratio using the
TCKPS<1:0> bits in the T1CON register.
3. Set the Clock and Gating modes using the TCS
and TGATE bits in the T1CON register.
4. Set or clear the TSYNC bit in T1CON to select
synchronous or asynchronous operation.
5. Load the timer period value into the PR1
register.
6. If interrupts are required, set the interrupt enable
bit, T1IE. Use the priority bits, T1IP<2:0>, to set
the interrupt priority.
FIGURE 12-1: 16-BIT TIMER1 MODULE BLOCK DIAGRAM
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 11.
“Timers” (DS70205) in the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
TON
SOSCI
SOSCO/
PR1
Set T1IF
Equal
Comparator
TMR1
Reset
SOSCEN
1
0
TSYNC
Q
QD
CK
TCKPS<1:0>
Prescaler
1, 8, 64, 256
2
TGATE
TCY
1
0
T1CK
TCS
1x
01
TGATE
00
Sync
Gate
Sync
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 158 © 2009 Microchip Technology Inc.
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> —TSYNCTCS
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 T1CS = 1:
This bit is ignored.
When T1CS = 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
© 2009 Microchip Technology Inc. DS70286C-page 159
dsPIC33FJXXXGPX06/X08/X10
13.0 TIMER2/3, TIMER4/5, TIMER6/7
AND TIMER8/9
The Timer2/3, Timer4/5, Timer6/7 and Timer8/9
modules are 32-bit timers, which can also be
configured as four independent 16-bit timers with
selectable operating modes.
As a 32-bit timer, Timer2/3, Timer4/5, Timer6/7 and
Timer8/9 operate in three modes:
Two Independent 16-bit Timers (e.g., Timer2 and
Timer3) with all 16-bit operating modes (except
Asynchronous Counter mode)
Single 32-bit Timer
Single 32-bit Synchronous Counter
They also support these features:
Timer Gate Operation
Selectable Prescaler Settings
Timer Operation during Idle and Sleep modes
Interrupt on a 32-bit Period Register Match
Time Base for Input Capture and Output Compare
Modules (Timer2 and Timer3 only)
ADC1 Event Trigger (Timer2/3 only)
ADC2 Event Trigger (Timer4/5 only)
Individually, all eight of the 16-bit timers can function as
synchronous timers or counters. They also offer the
features listed above, except for the event trigger; this
is implemented only with Timer2/3. The operating
modes and enabled features are determined by setting
the appropriate bit(s) in the T2CON, T3CON, T4CON,
T5CON, T6CON, T7CON, T8CON and T9CON
registers. T2CON, T4CON, T6CON and T8CON are
shown in generic form in Register 13-1. T3CON,
T5CON, T7CON and T9CON are shown in
Register 13-2.
For 32-bit timer/counter operation, Timer2, Timer4,
Timer6 or Timer8 is the least significant word; Timer3,
Timer5, Timer7 or Timer9 is the most significant word
of the 32-bit timers.
To configure Timer2/3, Timer4/5, Timer6/7 or Timer8/9
for 32-bit operation:
1. Set the corresponding T32 control bit.
2. Select the prescaler ratio for Timer2, Timer4,
Timer6 or Timer8 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, PR5, PR7 or
PR9 contains the most significant word of the
value, while PR2, PR4, PR6 or PR8 contains the
least significant word.
5. If interrupts are required, set the interrupt enable
bit, T3IE, T5IE, T7IE or T9IE. Use the priority
bits, T3IP<2:0>, T5IP<2:0>, T7IP<2:0> or
T9IP<2:0>, to set the interrupt priority. While
Timer2, Timer4, Timer6 or Timer8 control the
timer, the interrupt appears as a Timer3, Timer5,
Timer7 or Timer9 interrupt.
6. Set the corresponding TON bit.
The timer value at any point is stored in the register
pair, TMR3:TMR2, TMR5:TMR4, TMR7:TMR6 or
TMR9:TMR8. TMR3, TMR5, TMR7 or TMR9 always
contains the most significant word of the count, while
TMR2, TMR4, TMR6 or TMR8 contains the least
significant word.
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.
A block diagram for a 32-bit timer pair (Timer4/5)
example is shown in Figure 13-1 and a timer (Timer4)
operating in 16-bit mode example is shown in
Figure 13-2.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 11.
“Timers” (DS70205) in the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
Note: For 32-bit operation, T3CON, T5CON,
T7CON and T9CON control bits are
ignored. Only T2CON, T4CON, T6CON
and T8CON control bits are used for setup
and control. Timer2, Timer4, Timer6 and
Timer8 clock and gate inputs are utilized
for the 32-bit timer modules, but an
interrupt is generated with the Timer3,
Timer5, Ttimer7 and Timer9 interrupt
flags.
Note: Only Timer2 and Timer3 can trigger a
DMA data transfer.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 160 © 2009 Microchip Technology Inc.
FIGURE 13-1: TIMER2/3 (32-BIT) BLOCK DIAGRAM(1)
Set T3IF
Equal Comparator
PR3 PR2
Reset
LSbMSb
Note 1: The 32-bit timer control bit, T32, must be set for 32-bit timer/counter operation. All control bits are respective
to the T2CON register.
2: The ADC event trigger is available only on Timer2/3.
Data Bus<15:0>
TMR3HLD
Read TMR2
Write TMR2 16
16
16
Q
QD
CK
TGATE
0
1
TON
TCKPS<1:0>
2
TCY
TCS
1x
01
TGATE
00
T2CK
ADC Event Trigger(2)
Gate
Sync
Prescaler
1, 8, 64, 256
Sync
TMR3 TMR2
16
© 2009 Microchip Technology Inc. DS70286C-page 161
dsPIC33FJXXXGPX06/X08/X10
FIGURE 13-2: TIMER2 (16-BIT) BLOCK DIAGRAM
TON
TCKPS<1:0>
Prescaler
1, 8, 64, 256
2
TCY TCS
TGATE
T2CK
PR2
Set T2IF
Equal
Comparator
TMR2
Reset
Q
QD
CK
TGATE
1
0
Gate
Sync
1x
01
00
Sync
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 162 © 2009 Microchip Technology Inc.
REGISTER 13-1: TxCON (T2CON, T4CON, T6CON OR T8CON) 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 R/W-0 U-0 R/W-0 U-0
TGATE TCKPS<1:0> T32 —TCS
(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 TON: Timerx On bit
When T32 = 1:
1 = Starts 32-bit Timerx/y
0 = Stops 32-bit Timerx/y
When T32 = 0:
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 = 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: 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
10 = 1:64
01 = 1:8
00 = 1:1
bit 3 T32: 32-bit Timer Mode Select bit
1 = Timerx and Timery form a single 32-bit timer
0 = Timerx and Timery act as two 16-bit timers
bit 2 Unimplemented: Read as ‘0
bit 1 TCS: Timerx Clock Source Select bit(1)
1 = External clock from pin TxCK (on the rising edge)
0 = Internal clock (FCY)
bit 0 Unimplemented: Read as ‘0
Note 1: The TxCK pin is not available on all timers. Refer to the “Pin Diagrams” section for the available pins.
© 2009 Microchip Technology Inc. DS70286C-page 163
dsPIC33FJXXXGPX06/X08/X10
REGISTER 13-2: TyCON (T3CON, T5CON, T7CON OR T9CON) CONTROL REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON(1) —TSIDL
(2)
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
(1) TCKPS<1:0>(1) —TCS
(1,3)
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(1)
1 = Starts 16-bit Timery
0 = Stops 16-bit Timery
bit 14 Unimplemented: Read as ‘0
bit 13 TSIDL: Stop in Idle Mode bit(2)
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: Timery Gated Time Accumulation Enable bit(1)
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>: Timer3 Input Clock Prescale Select bits(1)
11 = 1:256
10 = 1:64
01 = 1:8
00 = 1:1
bit 3-2 Unimplemented: Read as ‘0
bit 1 TCS: Timery Clock Source Select bit(1,3)
1 = External clock from pin TyCK (on the rising edge)
0 = Internal clock (FCY)
bit 0 Unimplemented: Read as ‘0
Note 1: When 32-bit operation is enabled (T2CON<3> = 1), these bits have no effect on Timery operation; all timer
functions are set through T2CON.
2: 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.
3: The TyCK pin is not available on all timers. Refer to the “Pin Diagrams” section for the available pins.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 164 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 165
dsPIC33FJXXXGPX06/X08/X10
14.0 INPUT CAPTURE
The input capture module is useful in applications
requiring frequency (period) and pulse measurement.
The dsPIC33FJXXXGPX06/X08/X10 devices support
up to eight 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 between 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
Input capture can also be used to provide
additional sources of external interrupts
FIGURE 14-1: INPUT CAPTURE BLOCK DIAGRAM
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 12.
“Input Capture” (DS70198) in the
“dsPIC33F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
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).
ICxBUF
ICx Pin
ICM<2:0> (ICxCON<2:0>)
Mode Select
3
10
Set Flag ICxIF
(in IFSn Register)
TMRy TMRz
Edge Detection Logic
16 16
FIFO
R/W
Logic
ICxI<1:0>
ICOV, ICBNE (ICxCON<4:3>)
ICxCON
Interrupt
Logic
System Bus
From 16-bit Timers
ICTMR
(ICxCON<7>)
FIFO
Prescaler
Counter
(1, 4, 16) and
Clock Synchronizer
Note: An ‘x’ in a signal, register or bit name denotes the number of the capture channel.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 166 © 2009 Microchip Technology Inc.
14.1 Input Capture Registers
REGISTER 14-1: ICxCON: INPUT CAPTURE x CONTROL REGISTER
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(1) 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 will halt in CPU Idle mode
0 = Input capture module will continue to operate in CPU Idle mode
bit 12-8 Unimplemented: Read as ‘0
bit 7 ICTMR: Input Capture Timer Select bits(1)
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
Note 1: Timer selections may vary. Refer to the device data sheet for details.
© 2009 Microchip Technology Inc. DS70286C-page 167
dsPIC33FJXXXGPX06/X08/X10
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: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
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) in the “dsPIC33F
Family Reference Manual”,, which is avail-
able on the Microchip web site
(www.microchip.com).
OCxR(1)
Comparator
Output
Logic
OCM<2:0>
Output Enable
OCx(1)
Set Flag bit
OCxIF(1)
OCxRS(1)
Mode Select
3
01
OCTSEL 01
16
16
OCFA
TMR2 TMR2
QS
R
TMR3 TMR3
Rollover Rollover
Note 1: An ‘x’ in a signal, register or bit name denotes the number of the output compare channels.
2: The OCFA pin controls OC1 through OC4. The OCFB pin controls OC5 through OC8.
or
OCFB(2)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 168 © 2009 Microchip Technology Inc.
15.1 Output Compare Modes
Configure the Output Compare modes by setting the
appropriate Output Compare Mode (OCM<2:0>) bits in
the Output Compare Control (OCxCON<2:0>) register.
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
application 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: See Section 13. “Output Compare”
(DS70209) in the “dsPIC33F Family Ref-
erence 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 Current output is maintained OCx rising and falling edge
100 Delayed One-Shot 0OCx falling edge
101 Continuous Pulse 0OCx falling edge
110 PWM without Fault Protection 0’, if OCxR is zero
1’, if OCxR is non-zero
No interrupt
111 PWM 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
(OCM = 101)
PWM
(OCM = 110 or 111)
Active-Low One-Shot
(OCM = 001)
Active-High One-Shot
(OCM = 010)
Toggle
(OCM = 011)
Delayed One-Shot
(OCM = 100)
Output Compare
Mode Enabled
© 2009 Microchip Technology Inc. DS70286C-page 169
dsPIC33FJXXXGPX06/X08/X10
REGISTER 15-1: OCxCON: OUTPUT COMPARE x CONTROL REGISTER (x = 1, 2)
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 = Hardware 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 15-14 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 170 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 171
dsPIC33FJXXXGPX06/X08/X10
16.0 SERIAL PERIPHERAL
INTERFACE (SPI)
The Serial Peripheral Interface (SPI) module is a
synchronous serial interface useful for communicating
with other peripheral or microcontroller devices. These
peripheral devices may be serial EEPROMs, shift
registers, display drivers, ADC, etc. The SPI module is
compatible with SPI and SIOP from Motorola®.
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 various status conditions.
The serial interface consists of 4 pins: SDIx (serial data
input), SDOx (serial data output), SCKx (shift clock input
or output), and SSx (active-low slave select).
In Master mode operation, SCK is a clock output but in
Slave mode, it is a clock input.
FIGURE 16-1: SPI MODULE BLOCK DIAGRAM
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 18.
“Serial Peripheral Interface (SPI)”
(DS70206) in the “dsPIC33F Family
Reference Manual”, which is available
from the Microchip web site
(www.microchip.com).
Note: In this section, the SPI modules are
referred to together as SPIx, or separately
as SPI1 and SPI2. Special Function
Registers will follow a similar notation. For
example, SPIxCON refers to the control
register for the SPI1 or SPI2 module.
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 172 © 2009 Microchip Technology Inc.
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.
© 2009 Microchip Technology Inc. DS70286C-page 173
dsPIC33FJXXXGPX06/X08/X10
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. The user should program this bit to ‘0’ for the Framed
SPI modes (FRMEN = 1).
2: Do not set both Primary and Secondary prescalers to a value of 1:1.
3: This bit must be cleared when FRMEN = 1.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 174 © 2009 Microchip Technology Inc.
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. The user should program this bit to ‘0’ for the Framed
SPI modes (FRMEN = 1).
2: Do not set both Primary and Secondary prescalers to a value of 1:1.
3: This bit must be cleared when FRMEN = 1.
© 2009 Microchip Technology Inc. DS70286C-page 175
dsPIC33FJXXXGPX06/X08/X10
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: This bit must not be set to ‘1’ by the user application
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 176 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 177
dsPIC33FJXXXGPX06/X08/X10
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 dsPIC33FJXXXGPX06/X08/X10 devices have up
to two I2C interface modules, denoted as I2C1 and
I2C2. Each I2C module has a 2-pin interface: the SCLx
pin is clock and the SDAx pin is data.
Each I2C module ‘x’ (x = 1 or 2) offers the following key
features:
•I
2C interface supporting both master and slave
operation.
•I
2C Slave mode supports 7 and 10-bit address.
•I
2C Master mode supports 7 and 10-bit address.
•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 will arbitrate 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 address
•I
2C slave operation with 10-bit address
•I
2C master operation with 7 or 10-bit address
For details about the communication sequence in each
of these modes, please refer to the dsPIC33F Family
Reference Manual”.
17.2 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,
whereas I2CxRCV is the buffer register to which data
bytes are written, or from which data bytes are read.
I2CxRCV is the receive buffer. 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: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 19.
“Inter-Integrated Circuit™ (I2C™)”
(DS70195) in the “dsPIC33F Family
Reference Manual”, which is available
from the Microchip web site
(www.microchip.com).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 178 © 2009 Microchip Technology Inc.
FIGURE 17-1: I2C™ BLOCK DIAGRAM (X = 1 OR 2)
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
© 2009 Microchip Technology Inc. DS70286C-page 179
dsPIC33FJXXXGPX06/X08/X10
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 may write ‘0to 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 may 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 180 © 2009 Microchip Technology Inc.
bit 5 ACKDT: Acknowledge Data bit (when operating as I2C master, applicable during master receive)
Value that will be 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)
© 2009 Microchip Technology Inc. DS70286C-page 181
dsPIC33FJXXXGPX06/X08/X10
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 182 © 2009 Microchip Technology Inc.
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)
© 2009 Microchip Technology Inc. DS70286C-page 183
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 184 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 185
dsPIC33FJXXXGPX06/X08/X10
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 dsPIC33FJXXXGPX06/X08/X10
device family. The UART is a full-duplex asynchronous
system that can communicate with peripheral devices,
such as personal computers, LIN, 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 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 1 Mbps to 15 bps at 16x
mode at 40 MIPS
Baud rates ranging from 4 Mbps to 61 bps at 4x mode
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
Supports Automatic Baud Rate Detection
•IrDA
® Encoder and Decoder Logic
16x Baud Clock Output for IrDA® Support
A simplified block diagram of the UART is shown in
Figure 18-1. The UART module consists of the key
important hardware elements:
Baud Rate Generator
Asynchronous Transmitter
Asynchronous Receiver
FIGURE 18-1: UART SIMPLIFIED BLOCK DIAGRAM
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 17.
“UART” (DS70188) in the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
Note 1: Both UART1 and UART2 can trigger a DMA data transfer. If U1TX, U1RX, U2TX or U2RX is selected as
a DMA IRQ source, a DMA transfer occurs when the U1TXIF, U1RXIF, U2TXIF or U2RXIF bit gets set as
a result of a UART1 or UART2 transmission or reception.
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
BCLK
Baud Rate Generator
UxRTS
IrDA®
UxCTS
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 186 © 2009 Microchip Technology Inc.
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 will continue 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 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).
© 2009 Microchip Technology Inc. DS70286C-page 187
dsPIC33FJXXXGPX06/X08/X10
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 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).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 188 © 2009 Microchip Technology Inc.
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
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 Family Reference Manual” for information on
enabling the UART module for transmit operation.
© 2009 Microchip Technology Inc. DS70286C-page 189
dsPIC33FJXXXGPX06/X08/X10
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 (10 transition) will reset
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 Family Reference Manual” for information on
enabling the UART module for transmit operation.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 190 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 191
dsPIC33FJXXXGPX06/X08/X10
19.0 ENHANCED CAN (ECAN™)
MODULE
19.1 Overview
The Enhanced Controller Area Network (ECAN) mod-
ule is a serial interface, useful for communicating with
other CAN modules or microcontroller devices. This
interface/protocol was designed to allow communica-
tions within noisy environments. The
dsPIC33FJXXXGPX06/X08/X10 devices contain up to
two ECAN modules.
The CAN module is a communication controller imple-
menting the CAN 2.0 A/B protocol, as defined in the
BOSCH specification. The module will support CAN 1.2,
CAN 2.0A, CAN 2.0B Passive and CAN 2.0B Active
versions of the protocol. The module implementation is
a full CAN system. The CAN specification is not covered
within this data sheet. The reader may 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 8 transmit buffers with application specified
prioritization and abort capability (each buffer may
contain up to 8 bytes of data)
Up to 32 receive buffers (each buffer may contain
up to 8 bytes of data)
Up to 16 full (standard/extended identifier)
acceptance filters
3 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 both CAN1 and CAN2) for time-stamping and
network synchronization
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.
19.2 Frame Types
The CAN 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 will
then send 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 may 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.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 21.
“Enhanced Controller Area Network
(ECAN™)” (DS70185) in the “dsPIC33F
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 192 © 2009 Microchip Technology Inc.
FIGURE 19-1: ECAN™ MODULE BLOCK DIAGRAM
Message Assembly
CAN Protocol
Engine
CiTX(1)
Buffer
CiRX(1)
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
Note 1: i = 1 or 2 refers to a particular ECAN™ module (ECAN1 or ECAN2).
© 2009 Microchip Technology Inc. DS70286C-page 193
dsPIC33FJXXXGPX06/X08/X10
19.3 Modes of Operation
The CAN 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 will 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 will not transmit or
receive. The error counters are cleared and the
interrupt flags remain unchanged. The programmer will
have access to Configuration registers that are access
restricted in other modes. The module will protect the
user from accidentally violating the CAN protocol
through programming errors. All registers which control
the configuration of the module can not be modified
while the module is on-line. The CAN module will not
be 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 will not transmit or
receive. The module has the ability to set the WAKIF bit
due to bus activity, however, any pending interrupts will
remain and the error counters will retain their value.
If the REQOP<2:0> bits (CiCTRL1<10:8>) = 001, the
module will enter the Module Disable mode. If the module
is active, the module will wait 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 will revert 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 will assume the CAN bus
functions. The module will transmit 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
activated by setting REQOP<2:0> = ‘111’. In this
mode, the data which is in the message assembly buf-
fer, until the time an error occurred, is copied in the
receive buffer and can be read via the CPU interface.
19.3.6 LOOPBACK MODE
If the Loopback mode is activated, the module will
connect 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 CAN module is allowed to
transmit in a particular mode of operation
and a transmission is requested
immediately after the CAN module has
been placed in that mode of operation, the
module 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 corre-
sponding TXABT bit is set and TXREQ bit
is cleared.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 194 © 2009 Microchip Technology Inc.
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 = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared r = Bit is Reserved
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
Signal all transmit buffers to abort transmission. 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
000 = Set Normal Operation mode
001 = Set Disable mode
010 = Set Loopback mode
011 = Set Listen Only Mode
100 = Set Configuration mode
101 = Reserved - do not use
110 = Reserved - do not use
111 = Set Listen All Messages mode
bit 7-5 OPMODE<2:0>: Operation Mode bits
000 = Module is in Normal Operation mode
001 = Module is in Disable mode
010 = Module is in Loopback mode
011 = Module is in Listen Only mode
100 = Module is in Configuration mode
101 = Reserved
110 = Reserved
111 = Module is in Listen All Messages 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
© 2009 Microchip Technology Inc. DS70286C-page 195
dsPIC33FJXXXGPX06/X08/X10
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:
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 196 © 2009 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:
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
© 2009 Microchip Technology Inc. DS70286C-page 197
dsPIC33FJXXXGPX06/X08/X10
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:
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 = RB31 buffer
11110 = RB30 buffer
00001 = TRB1 buffer
00000 = TRB0 buffer
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 198 © 2009 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:
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 Write 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
© 2009 Microchip Technology Inc. DS70286C-page 199
dsPIC33FJXXXGPX06/X08/X10
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 = 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 15-14 Unimplemented: Read as ‘0
bit 13 TXBO: Transmitter in Error State Bus Off bit
bit 12 TXBP: Transmitter in Error State Bus Passive bit
bit 11 RXBP: Receiver in Error State Bus Passive bit
bit 10 TXWAR: Transmitter in Error State Warning bit
bit 9 RXWAR: Receiver in Error State Warning bit
bit 8 EWARN: Transmitter or Receiver in Error State Warning bit
bit 7 IVRIF: Invalid Message Received Interrupt Flag bit
bit 6 WAKIF: Bus Wake-up Activity Interrupt Flag bit
bit 5 ERRIF: Error Interrupt Flag bit (multiple sources in CiINTF<13:8> register)
bit 4 Unimplemented: Read as ‘0
bit 3 FIFOIF: FIFO Almost Full Interrupt Flag bit
bit 2 RBOVIF: RX Buffer Overflow Interrupt Flag bit
bit 1 RBIF: RX Buffer Interrupt Flag bit
bit 0 TBIF: TX Buffer Interrupt Flag bit
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 200 © 2009 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:
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
bit 6 WAKIE: Bus Wake-up Activity Interrupt Flag bit
bit 5 ERRIE: Error Interrupt Enable bit
bit 4 Unimplemented: Read as ‘0
bit 3 FIFOIE: FIFO Almost Full Interrupt Enable bit
bit 2 RBOVIE: RX Buffer Overflow Interrupt Enable bit
bit 1 RBIE: RX Buffer Interrupt Enable bit
bit 0 TBIE: TX Buffer Interrupt Enable bit
© 2009 Microchip Technology Inc. DS70286C-page 201
dsPIC33FJXXXGPX06/X08/X10
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:
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 202 © 2009 Microchip Technology Inc.
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
© 2009 Microchip Technology Inc. DS70286C-page 203
dsPIC33FJXXXGPX06/X08/X10
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 Buffer 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 Buffer 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 204 © 2009 Microchip Technology Inc.
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:
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:
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 Written when Filter 3 Hits bits
bit 11-8 F2BP<3:0>: RX Buffer Written when Filter 2 Hits bits
bit 7-4 F1BP<3:0>: RX Buffer Written when Filter 1 Hits bits
bit 3-0 F0BP<3:0>: RX Buffer Written when Filter 0 Hits bits
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
© 2009 Microchip Technology Inc. DS70286C-page 205
dsPIC33FJXXXGPX06/X08/X10
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:
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 Written when Filter 7 Hits bits
bit 11-8 F6BP<3:0>: RX Buffer Written when Filter 6 Hits bits
bit 7-4 F5BP<3:0>: RX Buffer Written when Filter 5 Hits bits
bit 3-0 F4BP<3:0>: RX Buffer Written when Filter 4 Hits bits
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:
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 Written when Filter 11 Hits bits
bit 11-8 F10BP<3:0>: RX Buffer Written when Filter 10 Hits bits
bit 7-4 F9BP<3:0>: RX Buffer Written when Filter 9 Hits bits
bit 3-0 F8BP<3:0>: RX Buffer Written when Filter 8 Hits bits
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 206 © 2009 Microchip Technology Inc.
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:
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 Written when Filter 15 Hits bits
bit 11-8 F14BP<3:0>: RX Buffer Written when Filter 14 Hits bits
bit 7-4 F13BP<3:0>: RX Buffer Written when Filter 13 Hits bits
bit 3-0 F12BP<3:0>: RX Buffer Written when Filter 12 Hits bits
© 2009 Microchip Technology Inc. DS70286C-page 207
dsPIC33FJXXXGPX06/X08/X10
REGISTER 19-16: CiRXFnSID: ECAN™ ACCEPTANCE FILTER n STANDARD IDENTIFIER (n = 0, 1,
..., 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:
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 then:
1 = Match only messages with extended identifier addresses
0 = Match only messages with standard identifier addresses
If MIDE = 0 then:
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
REGISTER 19-17: CiRXFnEID: ECAN
ACCEPTANCE FILTER n EXTENDED IDENTIFIER (n = 0, 1, ...,
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:
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 208 © 2009 Microchip Technology Inc.
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:
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
bit 13-12 F6MSK<1:0>: Mask Source for Filter 6 bit
bit 11-10 F5MSK<1:0>: Mask Source for Filter 5 bit
bit 9-8 F4MSK<1:0>: Mask Source for Filter 4 bit
bit 7-6 F3MSK<1:0>: Mask Source for Filter 3 bit
bit 5-4 F2MSK<1:0>: Mask Source for Filter 2 bit
bit 3-2 F1MSK<1:0>: Mask Source for Filter 1 bit
bit 1-0 F0MSK<1:0>: Mask Source for Filter 0 bit
11 = Reserved
10 = Acceptance Mask 2 registers contain mask
01 = Acceptance Mask 1 registers contain mask
00 = Acceptance Mask 0 registers contain mask
© 2009 Microchip Technology Inc. DS70286C-page 209
dsPIC33FJXXXGPX06/X08/X10
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:
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 = Reserved
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)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 210 © 2009 Microchip Technology Inc.
REGISTER 19-20: CiRXMnSID:
ECAN
ACCEPTANCE FILTER MASK n STANDARD IDENTIFIER
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:
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 n EXTENDED IDENTIFIER
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:
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
© 2009 Microchip Technology Inc. DS70286C-page 211
dsPIC33FJXXXGPX06/X08/X10
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 = 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 15-0 RXFUL<15:0>: Receive Buffer n Full bits
1 = Buffer is full (set by module)
0 = Buffer is empty (clear by application software)
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 = 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 15-0 RXFUL<31:16>: Receive Buffer n Full bits
1 = Buffer is full (set by module)
0 = Buffer is empty (clear by application software)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 212 © 2009 Microchip Technology Inc.
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 = 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 15-0 RXOVF<15:0>: Receive Buffer n Overflow bits
1 = Module pointed a write to a full buffer (set by module)
0 = Overflow is cleared (clear by application software)
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 = 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 15-0 RXOVF<31:16>: Receive Buffer n Overflow bits
1 = Module pointed a write to a full buffer (set by module)
0 = Overflow is cleared (clear by application software)
© 2009 Microchip Technology Inc. DS70286C-page 213
dsPIC33FJXXXGPX06/X08/X10
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:
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
Setting this bit to ‘1’ requests sending a message. The bit will automatically clear when the message
is successfully sent. Clearing the bit to ‘0’ while set will request 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 TXREQ is set.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 214 © 2009 Microchip Technology Inc.
Note: The buffers, SID, EID, DLC, Data Field and Receive Status registers are located in DMA RAM.
REGISTER 19-27: CiTRBnSID:
ECAN
BUFFER n STANDARD IDENTIFIER (n = 0, 1, ..., 31)
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
REGISTER 19-28: CiTRBnEID:
ECAN
BUFFER n EXTENDED IDENTIFIER (n = 0, 1, ..., 31)
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
© 2009 Microchip Technology Inc. DS70286C-page 215
dsPIC33FJXXXGPX06/X08/X10
REGISTER 19-29: CiTRBnDLC: ECAN™ BUFFER n DATA LENGTH CONTROL (n = 0, 1, ..., 31)
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
REGISTER 19-30: CiTRBnDm: ECAN
BUFFER n DATA FIELD BYTE m (n = 0, 1, ..., 31; m = 0, 1, ...,
7)
(1)
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
TRBnDm7 TRBnDm6 TRBnDm5 TRBnDm4 TRBnDm3 TRBnDm2 TRBnDm1 TRBnDm0
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 7-0 TRBnDm<7:0>: Data Field Buffer ‘n’ Byte ‘m’ bits
Note 1: The Most Significant Byte contains byte (m + 1) of the buffer.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 216 © 2009 Microchip Technology Inc.
REGISTER 19-31: CiTRBnSTAT: ECAN™ RECEIVE BUFFER n STATUS (n = 0, 1, ..., 31)
U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x
FILHIT4 FILHIT3 FILHIT2 FILHIT1 FILHIT0
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 (only written by module for receive buffers, unused for transmit buffers)
Encodes number of filter that resulted in writing this buffer.
bit 7-0 Unimplemented: Read as ‘0
© 2009 Microchip Technology Inc. DS70286C-page 217
dsPIC33FJXXXGPX06/X08/X10
20.0 DATA CONVERTER
INTERFACE (DCI) MODULE
20.1 Module Introduction
The dsPIC33FJXXXGPX06/X08/X10 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 sup-
ported:
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
20.2 Module I/O Pins
There are four I/O pins associated with the module.
When enabled, the module controls the data direction
of each of the four pins.
20.2.1 CSCK PIN
The CSCK pin provides the serial clock for the DCI
module. The CSCK pin may be configured as an input
or output using the CSCKD control bit in the DCICON1
SFR. When configured as an output, the serial clock is
provided by the dsPIC33FJXXXGPX06/X08/X10.
When configured as an input, the serial clock must be
provided by an external device.
20.2.2 CSDO PIN
The Serial Data Output (CSDO) pin is configured as an
output only pin when the module is enabled. The
CSDO pin drives the serial bus whenever data is to be
transmitted. The CSDO pin is tri-stated, or driven to ‘0’,
during CSCK periods when data is not transmitted
depending on the state of the CSDOM control bit. This
allows other devices to place data on the serial bus
during transmission periods not used by the DCI
module.
20.2.3 CSDI PIN
The Serial Data Input (CSDI) pin is configured as an
input only pin when the module is enabled.
20.2.3.1 COFS Pin
The Codec Frame Synchronization (COFS) pin is used
to synchronize data transfers that occur on the CSDO
and CSDI pins. The COFS pin may be configured as an
input or an output. The data direction for the COFS pin
is determined by the COFSD control bit in the
DCICON1 register.
The DCI module accesses the shadow registers while
the CPU is in the process of accessing the memory
mapped buffer registers.
20.2.4 BUFFER DATA ALIGNMENT
Data values are always stored left justified in the
buffers since most Codec data is represented as a
signed 2’s complement fractional number. If the
received word length is less than 16 bits, the unused
Least Significant bits in the Receive Buffer registers are
set to ‘0’ by the module. If the transmitted word length
is less than 16 bits, the unused LSbs in the Transmit
Buffer register are ignored by the module. The word
length setup is described in subsequent sections of this
document.
20.2.5 TRANSMIT/RECEIVE SHIFT
REGISTER
The DCI module has a 16-bit shift register for shifting
serial data in and out of the module. Data is shifted
in/out of the shift register, MSb first, since audio PCM
data is transmitted in signed 2’s complement format.
20.2.6 DCI BUFFER CONTROL
The DCI module contains a buffer control unit for
transferring data between the shadow buffer memory
and the Serial Shift register. The buffer control unit is a
simple 2-bit address counter that points to word loca-
tions in the shadow buffer memory. For the receive
memory space (high address portion of DCI buffer
memory), the address counter is concatenated with a
0’ in the MSb location to form a 3-bit address. For the
transmit memory space (high portion of DCI buffer
memory), the address counter is concatenated with a
1’ in the MSb location.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 20. “Data
Converter Interface (DCI)” (DS70288) in
the “dsPIC33F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
Note: The DCI buffer control unit always
accesses the same relative location in the
transmit and receive buffers, so only one
address counter is provided.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 218 © 2009 Microchip Technology Inc.
FIGURE 20-1: DCI MODULE BLOCK DIAGRAM
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
© 2009 Microchip Technology Inc. DS70286C-page 219
dsPIC33FJXXXGPX06/X08/X10
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 ‘0s 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 220 © 2009 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
© 2009 Microchip Technology Inc. DS70286C-page 221
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 222 © 2009 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
© 2009 Microchip Technology Inc. DS70286C-page 223
dsPIC33FJXXXGPX06/X08/X10
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 224 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 225
dsPIC33FJXXXGPX06/X08/X10
21.0 10-BIT/12-BIT
ANALOG-TO-DIGITAL
CONVERTER (ADC)
The dsPIC33FJXXXGPX06/X08/X10 devices have up
to 32 ADC input channels. These devices also have up
to 2 ADC modules (ADCx, where ‘x’ = 1 or 2), each with
its own set of Special Function Registers.
The AD12B bit (ADxCON1<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 32 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 1 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 32 analog input pins, designated AN0
through AN31. In addition, there are two analog input
pins for external voltage reference connections. These
voltage reference inputs may be shared with other
analog input pins. The actual number of analog input
pins and external voltage reference input configuration
will depend on the specific device. Refer to the device
data sheet for further details.
A block diagram of the ADC is shown in Figure 21-1.
21.2 ADC Initialization
The following configuration steps should be performed.
1. Configure the ADC module:
a) Select port pins as analog inputs
(ADxPCFGH<15:0> or ADxPCFGL<15:0>)
b) Select voltage reference source to match
expected range on analog inputs
(ADxCON2<15:13>)
c) Select the analog conversion clock to
match desired data rate with processor
clock (ADxCON3<7:0>)
d) Determine how many S/H channels will be
used (ADxCON2<9:8> and
ADxPCFGH<15:0> or ADxPCFGL<15:0>)
e) Select the appropriate sample/conversion
sequence (ADxCON1<7:5> and
ADxCON3<12:8>)
f) Select how conversion results are
presented in the buffer (ADxCON1<9:8>)
g) Turn on ADC module (ADxCON1<15>)
2. Configure ADC interrupt (if required):
a) Clear the ADxIF 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. Both ADC1 and ADC2 can trigger a DMA data
transfer. If ADC1 or ADC2 is selected as the DMA IRQ
source, a DMA transfer occurs when the AD1IF or
AD2IF bit gets set as a result of an ADC1 or ADC2
sample conversion sequence.
The SMPI<3:0> bits (ADxCON2<5:2>) are used to
select how often the DMA RAM buffer pointer is
incremented.
The ADDMABM bit (ADxCON1<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 will
provide 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 will provide a scatter/gather address to the
DMA channel, based on the index of the analog input
and the size of the DMA buffer.
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 16.
“Analog-to-Digital Converter (ADC)”
(DS70183) in the “dsPIC33F Family
Reference Manual”, which is available
from the Microchip web site
(www.microchip.com).
Note: The ADC module needs to be disabled
before modifying the AD12B bit.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 226 © 2009 Microchip Technology Inc.
FIGURE 21-1: ADCx MODULE BLOCK DIAGRAM
SAR ADC
S/H0
S/H1
ADC1BUF0
AN0
ANy(3)
AN1
VREF-
CH0SB<4:0>
CH0NA CH0NB
+
-
AN0
AN3
CH123SA
AN9
VREF-
CH123SB
CH123NA CH123NB
AN6
+
-
S/H2
AN1
AN4
CH123SA
AN10
VREF-
CH123SB
CH123NA CH123NB
AN7
+
-
S/H3
AN2
AN5
CH123SA
AN11
VREF-
CH123SB
CH123NA CH123NB
AN8
+
-
CH1(2)
CH0
CH2(2)
CH3(2)
CH0SA<4:0>
CHANNEL
SCAN
CSCNA
Alternate
VREF+(1) AVDD AVSS
VREF-(1)
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.
3: For 64-pin devices, y = 17; for 80-pin devices, y = 23; for 100-pin devices, y = 31; for ADC2, y = 15.
Input Selection
VREFH VREFL
© 2009 Microchip Technology Inc. DS70286C-page 227
dsPIC33FJXXXGPX06/X08/X10
FIGURE 21-2: ADC CONVERSION CLOCK PERIOD BLOCK DIAGRAM
0
1
ADC Internal
RC Clock(2)
TOSC(1) X2
ADC Conversion
Clock Multiplier
1, 2, 3, 4, 5,..., 64
ADxCON3<15>
TCY
TAD
6
ADxCON3<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 specifications for the exact RC clock value.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 228 © 2009 Microchip Technology Inc.
REGISTER 21-1: ADxCON1: ADCx CONTROL REGISTER 1 (where x = 1 or 2)
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
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 will provide 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 will provide 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 = Reserved
011 = MPWM interval ends sampling and starts conversion
010 = GP timer (Timer3 for ADC1, Timer5 for ADC2) 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
© 2009 Microchip Technology Inc. DS70286C-page 229
dsPIC33FJXXXGPX06/X08/X10
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 may write ‘1’ to begin sampling. Automatically set by hardware if ASAM = 1.
If SSRC = 000, software may 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 may write ‘0’ to clear
DONE status (software not allowed to write ‘1’). Clearing this bit will NOT affect any operation in prog-
ress. Automatically cleared by hardware at start of a new conversion.
REGISTER 21-1: ADxCON1: ADCx CONTROL REGISTER 1 (where x = 1 or 2) (CONTINUED)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 230 © 2009 Microchip Technology Inc.
REGISTER 21-2: ADxCON2: ADCx CONTROL REGISTER 2 (where x = 1 or 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 second half of buffer, user should access data in first half
0 = ADC is currently filling first half of buffer, user should access data in second half
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 or generates interrupt after completion of every 2nd
sample/conversion operation
0000 = Increments the DMA address or generates interrupt after completion of every
sample/conversion operation
bit 1 BUFM: Buffer Fill Mode Select bit
1 = Starts filling first half of buffer on first interrupt and second half of the buffer on next interrupt
0 = Always starts filling buffer from the beginning
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
VREF+VREF-
000 AVDD AVSS
001 External VREF+AVSS
010 AVDD External VREF-
011 External VREF+ External VREF-
1xx AVDD Avss
© 2009 Microchip Technology Inc. DS70286C-page 231
dsPIC33FJXXXGPX06/X08/X10
REGISTER 21-3: ADxCON3: ADCx 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 ADxCON1<SSRC> = 1.
2: This bit is not used if ADxCON3<ADRC> = 1.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 232 © 2009 Microchip Technology Inc.
REGISTER 21-4: ADxCON4: ADCx 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
© 2009 Microchip Technology Inc. DS70286C-page 233
dsPIC33FJXXXGPX06/X08/X10
REGISTER 21-5: ADxCHS123: ADCx 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
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, CHxSB 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
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 234 © 2009 Microchip Technology Inc.
REGISTER 21-6: ADxCHS0: ADCx 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
Same definition as bit<4:0>.
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
11111 = Channel 0 positive input is AN31
11110 = Channel 0 positive input is AN30
00010 = Channel 0 positive input is AN2
00001 = Channel 0 positive input is AN1
00000 = Channel 0 positive input is AN0
Note: ADC2 can only select AN0 through AN15 as positive input.
© 2009 Microchip Technology Inc. DS70286C-page 235
dsPIC33FJXXXGPX06/X08/X10
REGISTER 21-7: ADxCSSH: ADCx INPUT SCAN SELECT REGISTER HIGH(1,2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CSS31 CSS30 CSS29 CSS28 CSS27 CSS26 CSS25 CSS24
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
CSS23 CSS22 CSS21 CSS20 CSS19 CSS18 CSS17 CSS16
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 CSS<31:16>: ADC Input Scan Selection bits
1 = Select ANx for input scan
0 = Skip ANx for input scan
Note 1: On devices without 32 analog inputs, all ADxCSSH bits may be selected by user. However, inputs selected
for scan without a corresponding input on device will convert VREFL.
2: CSSx = ANx, where x = 16 through 31.
REGISTER 21-8: ADxCSSL: ADCx INPUT SCAN SELECT REGISTER LOW(1,2)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CSS15 CSS14 CSS13 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 15-0 CSS<15:0>: ADC Input Scan Selection bits
1 = Select ANx for input scan
0 = Skip ANx for input scan
Note 1: On devices without 16 analog inputs, all ADxCSSL bits may be selected by user. However, inputs selected
for scan without a corresponding input on device will convert VREFL.
2: CSSx = ANx, where x = 0 through 15.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 236 © 2009 Microchip Technology Inc.
REGISTER 21-9: AD1PCFGH: ADC1 PORT CONFIGURATION REGISTER HIGH(1,2,3)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCFG31 PCFG30 PCFG29 PCFG28 PCFG27 PCFG26 PCFG25 PCFG24
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
PCFG23 PCFG22 PCFG21 PCFG20 PCFG19 PCFG18 PCFG17 PCFG16
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 PCFG<31:16>: 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 32 analog inputs, all PCFG bits are R/W by user. However, PCFG bits are ignored on
ports without a corresponding input on device.
2: ADC2 only supports analog inputs AN0-AN15; therefore, no ADC2 port Configuration register exists.
3: PCFGx = ANx, where x = 16 through 31.
REGISTER 21-10: ADxPCFGL: ADCx PORT CONFIGURATION REGISTER LOW(1,2,3)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PCFG15 PCFG14 PCFG13 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 15-0 PCFG<15:0>: 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 16 analog inputs, all PCFG bits are R/W by user. However, PCFG bits are ignored on
ports without a corresponding input on device.
2: On devices with two analog-to-digital modules, both AD1PCFGL and AD2PCFGL will affect the
configuration of port pins multiplexed with AN0-AN15.
3: PCFGx = ANx, where x = 0 through 15.
© 2009 Microchip Technology Inc. DS70286C-page 237
dsPIC33FJXXXGPX06/X08/X10
22.0 SPECIAL FEATURES
dsPIC33FJXXXGPX06/X08/X10 devices include
several features intended to maximize application
flexibility and reliability, and minimize cost through elim-
ination 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
22.1 Configuration Bits
The Configuration bits can be programmed (read as
0’), or left unprogrammed (read as ‘1’), to select
various device configurations. These bits are mapped
starting at program memory location 0xF80000.
The device Configuration register map is shown in
Table 22-1.
The individual Configuration bit descriptions for the
FBS, FSS, FGS, FOSCSEL, FOSC, FWDT, FPOR and
FICD Configuration registers are shown in Table 22-2.
Note that address 0xF80000 is beyond the user program
memory space. In fact, it belongs to the configuration
memory space (0x800000-0xFFFFFF) which can only be
accessed using table reads and table writes.
The upper byte of all device Configuration registers
should always be ‘1111 1111’. This makes them
appear to be NOP instructions in the remote event that
their locations are ever executed by accident. Since
Configuration bits are not implemented in the
corresponding locations, writing ‘1’s to these locations
has no effect on device operation.
To prevent inadvertent configuration changes during
code execution, all programmable Configuration bits
are write-once. After a bit is initially programmed during
a power cycle, it cannot be written to again. Changing
a device configuration requires that power to the device
be cycled.
TABLE 22-1: DEVICE CONFIGURATION REGISTER MAP
Note: This data sheet summarizes the features
of the dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to Section 23.
“CodeGuard™ Security” (DS70199),
Section 24. “Programming and
Diagnostics” (DS70207), and Section
25. “Device Configuration” (DS70194)
in the “dsPIC33F Family Reference
Manual”, which is available from the
Microchip web site (www.microchip.com).
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 RSS<1:0> SSS<2:0> SWRP
0xF80004 FGS GSS1 GSS0 GWRP
0xF80006 FOSCSEL IESO Reserved(2) —FNOSC<2:0>
0xF80008 FOSC FCKSM<1:0> OSCIOFNC POSCMD<1:0>
0xF8000A FWDT FWDTEN WINDIS WDTPRE WDTPOST<3:0>
0xF8000C FPOR —FPWRT<2:0>
0xF8000E FICD Reserved(1) 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
Note 1: When read, these bits will appear as ‘1’. When you write to these bits, set these bits to ‘1’.
2: When read, this bit returns the current programmed value.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 238 © 2009 Microchip Technology Inc.
TABLE 22-2: dsPIC33FJXXXGPX06/X08/X10 CONFIGURATION BITS DESCRIPTION
Bit Field Register Description
BWRP FBS Boot Segment Program Flash Write Protection
1 = Boot segment may be written
0 = Boot segment is write-protected
BSS<2:0> FBS Boot Segment Program Flash Code Protection Size
X11 = No Boot program Flash segment
Boot space is 1K IW less VS
110 = Standard security; boot program Flash segment starts at End of VS, ends
at 0007FEh
010 = High security; boot program Flash segment starts at End of VS, ends at
0007FEh
Boot space is 4K IW less VS
101 = Standard security; boot program Flash segment starts at End of VS, ends
at 001FFEh
001 = High security; boot program Flash segment starts at End of VS, ends at
001FFEh
Boot space is 8K IW less VS
100 = Standard security; boot program Flash segment starts at End of VS, ends
at 003FFEh
000 = High security; boot program Flash segment starts at End of VS, ends at
003FFEh
RBS<1:0> FBS Boot Segment RAM Code Protection
11 = No Boot RAM defined
10 = Boot RAM is 128 Bytes
01 = Boot RAM is 256 Bytes
00 = Boot RAM is 1024 Bytes
SWRP FSS Secure Segment Program Flash Write Protection
1 = Secure segment may be written
0 = Secure segment is write-protected
© 2009 Microchip Technology Inc. DS70286C-page 239
dsPIC33FJXXXGPX06/X08/X10
SSS<2:0> FSS Secure Segment Program Flash Code Protection Size
(FOR 128K and 256K DEVICES)
X11 = No Secure program Flash segment
Secure space is 8K IW less BS
110 = Standard security; secure program Flash segment starts at End of BS,
ends at 0x003FFE
010 = High security; secure program Flash segment starts at End of BS, ends at
0x003FFE
Secure space is 16K IW less BS
101 = Standard security; secure program Flash segment starts at End of BS,
ends at 0x007FFE
001 = High security; secure program Flash segment starts at End of BS, ends at
0x007FFE
Secure space is 32K IW less BS
100 = Standard security; secure program Flash segment starts at End of BS,
ends at 0x00FFFE
000 = High security; secure program Flash segment starts at End of BS, ends at
0x00FFFE
(FOR 64K 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
RSS<1:0> FSS 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 General Segment Code-Protect bit
11 = User program memory is not code-protected
10 = Standard security; general program Flash segment starts at End of SS,
ends at EOM
0x = High security; general program Flash segment starts at End of SS, ends at
EOM
GWRP FGS General Segment Write-Protect bit
1 = User program memory is not write-protected
0 = User program memory is write-protected
TABLE 22-2: dsPIC33FJXXXGPX06/X08/X10 CONFIGURATION BITS DESCRIPTION (CONTINUED)
Bit Field Register Description
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 240 © 2009 Microchip Technology Inc.
IESO FOSCSEL 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 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 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
OSCIOFNC FOSC 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 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 Watchdog Timer Enable bit
1 = Watchdog Timer always enabled (LPRC oscillator cannot be disabled. Clearing
the SWDTEN bit in the RCON register will have 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 Watchdog Timer Window Enable bit
1 = Watchdog Timer in Non-Window mode
0 = Watchdog Timer in Window mode
WDTPRE FWDT Watchdog Timer Prescaler bit
1 = 1:128
0 = 1:32
WDTPOST FWDT Watchdog Timer Postscaler bits
1111 = 1:32,768
1110 = 1:16,384
.
.
.
0001 = 1:2
0000 = 1:1
JTAGEN FICD JTAG Enable bits
1 = JTAG enabled
0 = JTAG disabled
ICS<1:0> FICD 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
TABLE 22-2: dsPIC33FJXXXGPX06/X08/X10 CONFIGURATION BITS DESCRIPTION (CONTINUED)
Bit Field Register Description
© 2009 Microchip Technology Inc. DS70286C-page 241
dsPIC33FJXXXGPX06/X08/X10
22.2 On-Chip Voltage Regulator
All of the dsPIC33FJXXXGPX06/X08/X10 devices
power their core digital logic at a nominal 2.5V. This
may create an issue for designs that are required to
operate at a higher typical voltage, such as 3.3V. To
simplify system design, all devices in the
dsPIC33FJXXXGPX06/X08/X10 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. The regulator requires that a
low-ESR (less than 5 ohms) capacitor (such as
tantalum or ceramic) be connected to the
VCAP/VDDCORE pin (Figure 22-1). This helps to
maintain the stability of the regulator. The
recommended value for the filter capacitor is
provided in Table 25-13 of Section 25.0 “Electrical
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 22-1: CONNECTIONS FOR THE
ON-CHIP VOLTAGE
REGULATOR(1)
22.3 BOR: Brown-Out Reset
The BOR (Brown-out Reset) module is based on an
internal voltage reference circuit that monitors the
regulated voltage VCAP/VDDCORE. 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 (i.e.,
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 will generate a Reset pulse which will reset the
device. The BOR will select the clock source, based on
the device Configuration bit values (FNOSC<2:0> and
POSCMD<1:0>). Furthermore, if an oscillator mode is
selected, the BOR will activate the Oscillator Start-up
Timer (OST). The system clock is held until OST
expires. If the PLL is used, then the clock will be held
until the LOCK bit (OSCCON<5>) is ‘1’.
Concurrently, the PWRT time-out (TPWRT) will be
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>) will be set to indicate
that a BOR has occurred. The BOR circuit continues to
operate while in Sleep or Idle modes and will reset 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/VDDCORE pin.
Note 1: These are typical operating voltages. Refer to
TABLE 25-13: “Internal Voltage Regulator
Specifications” located in Section 25.1 “DC
Characteristics” for the full operating ranges
of VDD and VCAP/VDDCORE.
2: It is important for the low-ESR capacitor to be
placed as close as possible to the
VCAP/VDDCORE pin.
VDD
VCAP/VDDCORE
VSS
dsPIC33F
CEFC
3.3V
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 242 © 2009 Microchip Technology Inc.
22.4 Watchdog Timer (WDT)
For dsPIC33FJXXXGPX06/X08/X10 devices, the WDT
is driven by the LPRC oscillator. When the WDT is
enabled, the clock source is also enabled.
The nominal WDT clock source from LPRC is 32 kHz.
This feeds a prescaler and then 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
selection of a total of 16 settings, from 1:1 to 1:32,768.
Using the prescaler and postscaler, time-out periods
ranging from 1 ms to 131 seconds can be achieved.
The WDT, prescaler and postscaler are reset:
On any 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
If the WDT is enabled, it will continue to run during Sleep
or Idle modes. When the WDT time-out occurs, the
device will wake the device and code execution will
continue from where the PWRSAV instruction was
executed. The corresponding SLEEP or IDLE bits
(RCON<3,2>) will need to be cleared in software after the
device wakes up.
The WDT flag bit, WDTO (RCON<4>), is not automatically
cleared following a WDT time-out. To detect subsequent
WDT events, the flag must be cleared in software.
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 to enable the WDT for
critical code segments and disable the WDT during
non-critical segments for maximum power savings.
FIGURE 22-2: 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
window 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
© 2009 Microchip Technology Inc. DS70286C-page 243
dsPIC33FJXXXGPX06/X08/X10
22.5 JTAG Interface
dsPIC33FJXXXGPX06/X08/X10 devices implement a
JTAG interface, which supports boundary scan device
testing, as well as in-circuit programming. Detailed
information on the interface will be provided in future
revisions of the document.
22.6 Code Protection and
CodeGuard™ Security
The dsPIC33F product families offer the advanced
implementation of CodeGuard™ Security. 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 IP are resident on the single
chip. The code protection features vary depending on
the actual dsPIC33F implemented. The following
sections provide an overview of these features.
The code protection features are controlled by the
Configuration registers: FBS, FSS and FGS.
22.7 In-Circuit Serial Programming
dsPIC33FJXXXGPX06/X08/X10 family digital signal
controllers can be serially programmed while in the end
application circuit. This is simply done with two lines for
clock and data and three other lines for power, ground
and the programming sequence. 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. Please refer to the “dsPIC33F/PIC24H
Flash Programming Specification (DS70152)
document for details about ICSP.
Any one out of three pairs of programming clock/data
pins may be used:
PGEC1 and PGED1
PGEC2 and PGED2
PGEC3 and PGED3
22.8 In-Circuit Debugger
When MPLAB® ICD 2 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 one out of three pairs of debugging clock/data pins
may 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 and the PGEDx/PGECx pin pair. 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.
Note: Refer to Section 23. “CodeGuard™
Security” (DS70199) in the “dsPIC33F
Family Reference Manual for further
information on usage, configuration and
operation of CodeGuard™ Security.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 244 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 245
dsPIC33FJXXXGPX06/X08/X10
23.0 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 23-1 illustrates the general symbols used in
describing the instructions.
The dsPIC33F instruction set summary in Table 23-2
provides 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 either be 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 may
use some of the following operands:
A literal value to be loaded into a W register or file
register (specified by the value of ‘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 may 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 may 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 may 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 dsPIC33FJXXXGPX06/X08/X10
family of devices. However, it is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the related section
in the “dsPIC33F Family Reference
Manual”, which is available from the
Microchip web site (www.microchip.com).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 246 © 2009 Microchip Technology Inc.
All instructions are a single word, except for certain
double-word instructions, which were made
double-word instructions so that all the required
information is available 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 will execute as
a NOP.
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
instructions, which are single-word instructions but take
two or three cycles. Certain instructions that involve skip-
ping 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. The double-word instructions
execute in two instruction cycles.
Note: For more details on the instruction set,
refer to the “dsPIC30F/33F Programmer’s
Reference Manual” (DS70157).
TABLE 23-1: 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, may 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)
© 2009 Microchip Technology Inc. DS70286C-page 247
dsPIC33FJXXXGPX06/X08/X10
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 23-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED)
Field Description
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 248 © 2009 Microchip Technology Inc.
TABLE 23-2: 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
© 2009 Microchip Technology Inc. DS70286C-page 249
dsPIC33FJXXXGPX06/X08/X10
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 23-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 250 © 2009 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 N,Z
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 N,Z
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 23-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
© 2009 Microchip Technology Inc. DS70286C-page 251
dsPIC33FJXXXGPX06/X08/X10
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 23-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 252 © 2009 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 23-2: INSTRUCTION SET OVERVIEW (CONTINUED)
Base
Instr
#
Assembly
Mnemonic Assembly Syntax Description # of
Words
# of
Cycles
Status Flags
Affected
© 2009 Microchip Technology Inc. DS70286C-page 253
dsPIC33FJXXXGPX06/X08/X10
24.0 DEVELOPMENT SUPPORT
The PIC® microcontrollers are supported with a full
range of hardware and software development tools:
Integrated Development Environment
- MPLAB® IDE Software
Assemblers/Compilers/Linkers
- MPASMTM Assembler
- MPLAB C18 and MPLAB C30 C Compilers
-MPLINK
TM Object Linker/
MPLIBTM Object Librarian
- MPLAB ASM30 Assembler/Linker/Library
Simulators
- MPLAB SIM Software Simulator
Emulators
- MPLAB ICE 2000 In-Circuit Emulator
- MPLAB REAL ICE™ In-Circuit Emulator
In-Circuit Debugger
- MPLAB ICD 2
Device Programmers
-PICSTART
® Plus Development Programmer
- MPLAB PM3 Device Programmer
- PICkit™ 2 Development Programmer
Low-Cost Demonstration and Development
Boards and Evaluation Kits
24.1 MPLAB Integrated Development
Environment Software
The MPLAB IDE software brings an ease of software
development previously unseen in the 8/16-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)
- 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
Visual device initializer for easy register
initialization
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
HI-TECH Software C Compilers and IAR
C Compilers
The MPLAB IDE allows you to:
Edit your source files (either assembly or C)
One touch assemble (or compile) and download
to PIC MCU emulator and simulator tools
(automatically updates all project information)
Debug using:
- Source files (assembly or C)
- Mixed assembly and C
- 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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 254 © 2009 Microchip Technology Inc.
24.2 MPASM Assembler
The MPASM Assembler is a full-featured, universal
macro assembler for all PIC 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
24.3 MPLAB C18 and MPLAB C30
C Compilers
The MPLAB C18 and MPLAB C30 Code Development
Systems are complete ANSI C compilers for
Microchip’s PIC18 and PIC24 families of
microcontrollers and the dsPIC30 and dsPIC33 family
of digital signal controllers. These compilers provide
powerful integration capabilities, superior code
optimization and ease of use not found with other
compilers.
For easy source level debugging, the compilers provide
symbol information that is optimized to the MPLAB IDE
debugger.
24.4 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
24.5 MPLAB ASM30 Assembler, Linker
and Librarian
MPLAB ASM30 Assembler produces relocatable
machine code from symbolic assembly language for
dsPIC30F devices. MPLAB C30 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 dsPIC30F instruction set
Support for fixed-point and floating-point data
Command line interface
Rich directive set
Flexible macro language
MPLAB IDE compatibility
24.6 MPLAB SIM Software Simulator
The MPLAB SIM Software Simulator allows code
development in a PC-hosted environment by
simulating 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 C18 and
MPLAB C30 C Compilers, and the MPASM and
MPLAB ASM30 Assemblers. The software simulator
offers the flexibility to develop and debug code outside
of the hardware laboratory environment, making it an
excellent, economical software development tool.
© 2009 Microchip Technology Inc. DS70286C-page 255
dsPIC33FJXXXGPX06/X08/X10
24.7 MPLAB ICE 2000
High-Performance
In-Circuit Emulator
The MPLAB ICE 2000 In-Circuit Emulator is intended
to provide the product development engineer with a
complete microcontroller design tool set for PIC
microcontrollers. Software control of the MPLAB ICE
2000 In-Circuit Emulator is advanced by the MPLAB
Integrated Development Environment, which allows
editing, building, downloading and source debugging
from a single environment.
The MPLAB ICE 2000 is a full-featured emulator
system with enhanced trace, trigger and data
monitoring features. Interchangeable processor
modules allow the system to be easily reconfigured for
emulation of different processors. The architecture of
the MPLAB ICE 2000 In-Circuit Emulator allows
expansion to support new PIC microcontrollers.
The MPLAB ICE 2000 In-Circuit Emulator system has
been designed as a real-time emulation system with
advanced features that are typically found on more
expensive development tools. The PC platform and
Microsoft® Windows® 32-bit operating system were
chosen to best make these features available in a
simple, unified application.
24.8 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 MPLAB REAL ICE probe 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 the popular MPLAB ICD 2 system
(RJ11) or with the new high-speed, noise tolerant,
Low-Voltage Differential Signal (LVDS) interconnection
(CAT5).
MPLAB REAL ICE is field upgradeable through future
firmware downloads in MPLAB IDE. In upcoming
releases of MPLAB IDE, new devices will be
supported, and new features will be added, such as
software breakpoints and assembly code trace.
MPLAB REAL ICE offers significant advantages over
competitive emulators including low-cost, full-speed
emulation, real-time variable watches, trace analysis,
complex breakpoints, a ruggedized probe interface and
long (up to three meters) interconnection cables.
24.9 MPLAB ICD 2 In-Circuit Debugger
Microchip’s In-Circuit Debugger, MPLAB ICD 2, is a
powerful, low-cost, run-time development tool,
connecting to the host PC via an RS-232 or high-speed
USB interface. This tool is based on the Flash PIC
MCUs and can be used to develop for these and other
PIC MCUs and dsPIC DSCs. The MPLAB ICD 2 utilizes
the in-circuit debugging capability built into the Flash
devices. This feature, along with Microchip’s In-Circuit
Serial ProgrammingTM (ICSPTM) protocol, offers
cost-effective, in-circuit Flash debugging from the
graphical user interface of the MPLAB Integrated
Development Environment. This enables a designer to
develop and debug source code by setting breakpoints,
single stepping and watching variables, and CPU
status and peripheral registers. Running at full speed
enables testing hardware and applications in real
time. MPLAB ICD 2 also serves as a development
programmer for selected PIC devices.
24.10 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
modular, 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 SD/MMC card for
file storage and secure data applications.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 256 © 2009 Microchip Technology Inc.
24.11 PICSTART Plus Development
Programmer
The PICSTART Plus Development Programmer is an
easy-to-use, low-cost, prototype programmer. It
connects to the PC via a COM (RS-232) port. MPLAB
Integrated Development Environment software makes
using the programmer simple and efficient. The
PICSTART Plus Development Programmer supports
most PIC devices in DIP packages up to 40 pins.
Larger pin count devices, such as the PIC16C92X and
PIC17C76X, may be supported with an adapter socket.
The PICSTART Plus Development Programmer is CE
compliant.
24.12 PICkit 2 Development Programmer
The PICkit 2 Development Programmer is a low-cost
programmer and selected Flash device debugger with
an easy-to-use interface for programming many of
Microchip’s baseline, mid-range and PIC18F families of
Flash memory microcontrollers. The PICkit 2 Starter Kit
includes a prototyping development board, twelve
sequential lessons, software and HI-TECH’s PICC™
Lite C compiler, and is designed to help get up to speed
quickly using PIC microcontrollers. The kit provides
everything needed to program, evaluate and develop
applications using Microchip’s powerful, mid-range
Flash memory family of microcontrollers.
24.13 Demonstration, Development and
Evaluation Boards
A wide variety of demonstration, development and
evaluation boards for various PIC MCUs and dsPIC
DSCs allows quick application development on fully
functional 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™
demonstration/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.
Check the Microchip web page (www.microchip.com)
for the complete list of demonstration, development
and evaluation kits.
© 2009 Microchip Technology Inc. DS70286C-page 257
dsPIC33FJXXXGPX06/X08/X10
25.0 ELECTRICAL CHARACTERISTICS
This section provides an overview of dsPIC33FJXXXGPX06/X08/X10 electrical characteristics. Additional information
will be provided in future revisions of this document as it becomes available.
Absolute maximum ratings for the dsPIC33FJXXXGPX06/X08/X10 family are listed below. Exposure to these maximum
rating conditions for extended periods may 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 +85°C
Storage temperature .............................................................................................................................. -65°C to +150°C
Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V
Voltage on any combined analog and digital pin and MCLR, with respect to VSS ......................... -0.3V to (VDD + 0.3V)
Voltage on any digital-only pin with respect to VSS .................................................................................. -0.3V to +5.6V
Voltage on VCAP/VDDCORE with respect to VSS ....................................................................................... 2.25V to 2.75V
Maximum current out of VSS pin ...........................................................................................................................300 mA
Maximum current into VDD pin(2)...........................................................................................................................250 mA
Maximum output current sunk by any I/O pin(3) ........................................................................................................4 mA
Maximum output current sourced by any I/O pin(3)...................................................................................................4 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” may 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 may affect device reliability.
2: Maximum allowable current is a function of device maximum power dissipation (see Table 25-2).
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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 258 © 2009 Microchip Technology Inc.
25.1 DC Characteristics
TABLE 25-1: OPERATING MIPS VS. VOLTAGE
Characteristic VDD Range
(in Volts)
Temp Range
(in °C)
Max MIPS
dsPIC33FJXXXGPX06/X08/X10
DC5 3.0-3.6V -40°C to +85°C 40
TABLE 25-2: THERMAL OPERATING CONDITIONS
Rating Symbol Min Typ Max Unit
dsPIC33FJXXXGPX06/X08/X10
Operating Junction Temperature Range TJ-40 +125 °C
Operating Ambient Temperature Range TA-40 +85 °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 25-3: THERMAL PACKAGING CHARACTERISTICS
Characteristic Symbol Typ Max Unit Notes
Package Thermal Resistance, 100-pin TQFP (14x14x1 mm) θJA 40 °C/W 1
Package Thermal Resistance, 100-pin TQFP (12x12x1 mm) θJA 40 °C/W 1
Package Thermal Resistance, 80-pin TQFP (12x12x1 mm) θJA 40 °C/W 1
Package Thermal Resistance, 64-pin TQFP (10x10x1 mm) θJA 40 °C/W 1
Note 1: Junction to ambient thermal resistance, Theta-JA (θJA) numbers are achieved by package simulations.
© 2009 Microchip Technology Inc. DS70286C-page 259
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-4: 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
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Operating Voltage
DC10 Supply Voltage
VDD —3.03.6V
DC12 VDR RAM Data Retention Voltage(2) 1.8 V
DC16 VPOR VDD Start Voltage(4)
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
DC18 VCORE VDD Core(3)
Internal regulator voltage
2.25 2.75 V Voltage is dependent on
load, temperature and
VDD
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.
3: These parameters are characterized but not tested in manufacturing.
4: VDD voltage must remain at VSS for a minimum of 200 μs to ensure POR.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 260 © 2009 Microchip Technology Inc.
TABLE 25-5: 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
Parameter
No. Typical(1) Max Units Conditions
Operating Current (IDD)(2)
DC20d 27 30 mA -40°C
3.3V 10 MIPSDC20a 27 30 mA +25°C
DC20b 27 30 mA +85°C
DC21d 36 40 mA -40°C
3.3V 16 MIPSDC21a 37 40 mA +25°C
DC21b 38 45 mA +85°C
DC22d 43 50 mA -40°C
3.3V 20 MIPSDC22a 46 50 mA +25°C
DC22b 46 55 mA +85°C
DC23d 65 70 mA -40°C
3.3V 30 MIPSDC23a 65 70 mA +25°C
DC23b 65 70 mA +85°C
DC24d 84 90 mA -40°C
3.3V 40 MIPSDC24a 84 90 mA +25°C
DC24b 84 90 mA +85°C
Note 1: Data in “Typical” column is at 3.3V, 25°C unless otherwise stated.
2: The supply current is mainly 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: OSC1
driven with external square wave from rail to rail. 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 (PMD bits
are all zeroed).
© 2009 Microchip Technology Inc. DS70286C-page 261
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-6: 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
Parameter
No. Typical(1) Max Units Conditions
Idle Current (IIDLE): Core OFF Clock ON Base Current(2)
DC40d 3 25 mA -40°C
3.3V 10 MIPSDC40a 3 25 mA +25°C
DC40b 3 25 mA +85°C
DC41d 4 25 mA -40°C
3.3V 16 MIPSDC41a 5 25 mA +25°C
DC41b 6 25 mA +85°C
DC42d 8 25 mA -40°C
3.3V 20 MIPSDC42a 9 25 mA +25°C
DC42b 10 25 mA +85°C
DC43a 15 25 mA +25°C
3.3V 30 MIPS25DC43d 15 mA -40°C
DC43b 15 25 mA +85°C
DC44d 16 25 mA -40°C
3.3V 40 MIPSDC44a 16 25 mA +25°C
DC44b 16 25 mA +85°C
Note 1: Data in “Typical” column is at 3.3V, 25°C unless otherwise stated.
2: Base IIDLE current is measured with core off, clock on and all modules turned off. Peripheral Module
Disable SFR registers are zeroed. All I/O pins are configured as inputs and pulled to VSS.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 262 © 2009 Microchip Technology Inc.
TABLE 25-7: 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
Parameter
No. Typical(1) Max Units Conditions
Power-Down Current (IPD)(2)
DC60d 55 500 μA -40°C
3.3V Base Power-Down Current(3,4)
DC60a 211 500 μA +25°C
DC60b 244 500 μA +85°C
DC61d 8 13 μA -40°C
3.3V Watchdog Timer Current: ΔIWDT(3)
DC61a 10 15 μA +25°C
DC61b 12 20 μA +85°C
Note 1: Data in the Typical column is at 3.3V, 25°C unless otherwise stated.
2: 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.
3: The Δ current is the additional current consumed when the 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.
TABLE 25-8: 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
Parameter
No. Typical(1) Max Doze Ratio Units Conditions
DC73a 11 35 1:2 mA
-40°C 3.3V 40 MIPSDC73f 11 30 1:64 mA
DC73g 11 30 1:128 mA
DC70a 42 50 1:2 mA
+25°C 3.3V 40 MIPSDC70f 26 30 1:64 mA
DC70g 25 30 1:128 mA
DC71a 41 50 1:2 mA
+85°C 3.3V 40 MIPSDC71f 25 30 1:64 mA
DC71g 24 30 1:128 mA
Note 1: Data in the Typical column is at 3.3V, 25°C unless otherwise stated.
© 2009 Microchip Technology Inc. DS70286C-page 263
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-9: 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
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
VIL Input Low Voltage
DI10 I/O pins VSS —0.2VDD V
DI15 MCLR VSS —0.2VDD V
DI16 I/O Pins with OSC1 or SOSCI VSS —0.2VDD V
DI18 I/O Pins with I2CVSS 0.3 VDD V SMbus disabled
DI19 I/O Pins with I2C VSS 0.2 VDD V SMbus enabled
VIH Input High Voltage
DI20 I/O Pins Not 5V Tolerant(4)
I/O Pins 5V Tolerant(4)
0.8 VDD
0.8 VDD
VDD
5.5
V
V
I/O Pins Not 5V Tolerant(4)
I/O Pins 5V Tolerant(4)
2
2
VDD
5.5
V
V
VDD = 3.3V
VDD = 3.3V
DI26 I/O Pins with OSC1 or SOSCI 0.7 VDD —VDD V
DI28 I/O Pins with I2C0.7VDD 5.5 V SMbus disabled
DI29 I/O Pins with I2C 0.8 VDD 5.5 V SMbus enabled
ICNPU CNx Pull-up Current
DI30 50 250 400 μAV
DD = 3.3V, VPIN = VSS
IIL Input Leakage Current(2,3)
DI50 I/O Pins ±2 μAVSS VPIN VDD,
Pin at high-impedance
DI51 I/O Pins Not 5V Tolerant(4) ——±2μAVSS VPIN VDD,
Pin at high-impedance
DI51a I/O Pins Not 5V Tolerant(4) ——±2μA Shared with external reference
pins
DI51b I/O Pins Not 5V Tolerant(4) ——±3.5μAVSS VPIN VDD, Pin at
high-impedance
DI51c I/O Pins Not 5V Tolerant(4) ——±8μA Analog pins shared with
external reference pins
DI55 MCLR ——±2μAVSS VPIN VDD
DI56 OSC1 ±2 μAVSS VPIN VDD,
XT and HS modes
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 may be measured at different input
voltages.
3: Negative current is defined as current sourced by the pin.
4: See “Pin Diagrams” for a list of 5V tolerant pins.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 264 © 2009 Microchip Technology Inc.
TABLE 25-10: 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
Param
No. Symbol Characteristic Min Typ Max Units Conditions
VOL Output Low Voltage
DO10 I/O ports 0.4 V IOL = 2 mA, VDD = 3.3V
DO16 OSC2/CLKO 0.4 V IOL = 2 mA, VDD = 3.3V
VOH Output High Voltage
DO20 I/O ports 2.40 V IOH = -2.3 mA, VDD = 3.3V
DO26 OSC2/CLKO 2.41 V IOH = -1.3 mA, VDD = 3.3V
TABLE 25-11: 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
Param
No. Symbol Characteristic Min(1) Typ Max(1) Units Conditions
BO10 VBOR BOR Event on VDD transition
high-to-low
BOR event is tied to VDD core voltage
decrease
2.40 2.55 V
Note 1: Parameters are for design guidance only and are not tested in manufacturing.
© 2009 Microchip Technology Inc. DS70286C-page 265
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-13: INTERNAL VOLTAGE REGULATOR SPECIFICATIONS
TABLE 25-12: 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
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
Program Flash Memory
D130a EPCell Endurance 100 1000 E/W See Note 2
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,
See Note 2
D137a TPE Page Erase Time 20.1 26.5 ms TPE = 168517 FRC cycles,
See Note 2
D138a TWW Word Write Cycle Time 42.3 55.9 µs TWW = 355 FRC cycles,
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 25-19) 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: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
Param
No. Symbol Characteristics Min Typ Max Units Comments
CEFC External Filter Capacitor
Value
4.7 10 μF Capacitor must be low
series resistance
(< 5 ohms)
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 266 © 2009 Microchip Technology Inc.
25.2 AC Characteristics and Timing
Parameters
The information contained in this section defines
dsPIC33FJXXXGPX06/X08/X10 AC characteristics
and timing parameters.
TABLE 25-14: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC
FIGURE 25-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
TABLE 25-15: 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
Operating voltage VDD range as described in Section 25.0 “Electrical
Characteristics”.
Param
No. Symbol Characteristic Min Typ Max Units Conditions
DO50 COSC2 OSC2/SOSC2 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
© 2009 Microchip Technology Inc. DS70286C-page 267
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-2: EXTERNAL CLOCK TIMING
TABLE 25-16: 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
Param
No.
Sym
bol 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
10
40
33
MHz
MHz
kHz
XT
HS
SOSC
OS20 TOSC TOSC = 1/FOSC 12.5 DC ns
OS25 TCY Instruction Cycle Time(2) 25 DC ns
OS30 TosL,
TosH
External Clock in (OSC1)
High or Low Time
0.375 x TOSC 0.625 x TOSC ns EC
OS31 TosR,
TosF
External Clock in (OSC1)
Rise or Fall Time
20 ns EC
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.
Q1 Q2 Q3 Q4
OSC1
CLKO
Q1 Q2 Q3 Q4
OS20
OS25
OS30 OS30
OS40
OS41
OS31 OS31
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 268 © 2009 Microchip Technology Inc.
TABLE 25-17: 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
Param
No. Symbol Characteristic Min Typ(1) Max Units Conditions
OS50 FPLLI PLL Voltage Controlled
Oscillator (VCO) Input
Frequency Range(2)
0.8 8.0 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) -3.0 0.5 3.0 % Measured over 100 ms
period
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
TABLE 25-18: AC CHARACTERISTICS: INTERNAL FRC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
Param
No. Characteristic Min Typ Max Units Conditions
Internal FRC Accuracy @ FRC Frequency = 7.37 MHz(1,2)
F20 FRC -2 +2 % -40°C TA +85°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.
2: FRC is set to initial frequency of 7.37 MHz (±2%) at 25°C FRC.
TABLE 25-19: INTERNAL LPRC ACCURACY
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C TA +85°C for Industrial
Param
No. Characteristic Min Typ Max Units Conditions
LPRC @ 32.768 kHz(1)
F21 LPRC -20 ±6 +20 % -40°C TA +85°C VDD = 3.0-3.6V
Note 1: Change of LPRC frequency as VDD changes.
© 2009 Microchip Technology Inc. DS70286C-page 269
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-3: CLKO AND I/O TIMING CHARACTERISTICS
TABLE 25-20: 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
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 (output) 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 25-1 for load conditions.
I/O Pin
(Input)
I/O Pin
(Output)
DI35
Old Value New Value
DI40
DO31
DO32
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 270 © 2009 Microchip Technology Inc.
FIGURE 25-4: 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 25-1 for load conditions.
FSCM
Delay
SY35
SY30
SY12
© 2009 Microchip Technology Inc. DS70286C-page 271
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-21: 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
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 22.4 “Watchdog
Timer (WDT)” and LPRC
specification F21 (Table 25-19)
SY30 TOST Oscillator Start-up Timer
Period
1024 TOSC ——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.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 272 © 2009 Microchip Technology Inc.
FIGURE 25-5: TIMER1, 2, 3, 4, 5, 6, 7, 8 AND 9 EXTERNAL CLOCK TIMING CHARACTERISTICS
Note: Refer to Figure 25-1 for load conditions.
Tx11
Tx15
Tx10
Tx20
TMRx
OS60
TxCK
TABLE 25-22: 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
Param
No. Symbol Characteristic Min Typ Max Units Conditions
TA10 TTXH TxCK High Time Synchronous,
no prescaler
0.5 TCY + 20 ns Must also meet
parameter TA15
Synchronous,
with prescaler
10 ns
Asynchronous 10 ns
TA11 TTXL TxCK Low Time Synchronous,
no prescaler
0.5 TCY + 20 ns Must also meet
parameter TA15
Synchronous,
with prescaler
10 ns
Asynchronous 10 ns
TA15 TTXP TxCK Input Period Synchronous,
no prescaler
TCY + 40 ns
Synchronous,
with prescaler
Greater of:
20 ns or
(TCY + 40)/N
N = prescale
value
(1, 8, 64, 256)
Asynchronous 20 ns
OS60 Ft1 SOSC1/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
0.5 TCY —1.5 TCY ——
Note 1: Timer1 is a Type A.
© 2009 Microchip Technology Inc. DS70286C-page 273
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-23: TIMER2, TIMER4, TIMER6 AND TIMER8 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
Param
No. Symbol Characteristic Min Typ Max Units Conditions
TB10 TtxH TxCK High Time Synchronous,
no prescaler
0.5 TCY + 20 ns Must also meet
parameter TB15
Synchronous,
with prescaler
10 — ns
TB11 TtxL TxCK Low Time Synchronous,
no prescaler
0.5 TCY + 20 ns Must also meet
parameter TB15
Synchronous,
with prescaler
10 ns
TB15 TtxP TxCK Input
Period
Synchronous,
no prescaler
TCY + 40 ns N = prescale
value
(1, 8, 64, 256)
Synchronous,
with prescaler
Greater of:
20 ns or
(TCY + 40)/N
TB20 TCKEXT-
MRL
Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY 1.5 TCY ——
TABLE 25-24: TIMER3, TIMER5, TIMER7 AND TIMER9 EXTERNAL CLOCK TIMING
REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C
Param
No. Symbol Characteristic Min Typ Max Units Conditions
TC10 TtxH TxCK High Time Synchronous 0.5 TCY + 20 ns Must also meet
parameter TC15
TC11 TtxL TxCK Low Time Synchronous 0.5 TCY + 20 ns Must also meet
parameter TC15
TC15 TtxP TxCK Input Period Synchronous,
no prescaler
TCY + 40 ns N = prescale
value
(1, 8, 64, 256)
Synchronous,
with prescaler
Greater of:
20 ns or
(TCY + 40)/N
TC20 TCKEXTMRL Delay from External TxCK Clock
Edge to Timer Increment
0.5 TCY —1.5
TCY
——
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 274 © 2009 Microchip Technology Inc.
FIGURE 25-6: INPUT CAPTURE (CAPx) TIMING CHARACTERISTICS
FIGURE 25-7: OUTPUT COMPARE MODULE (OCx) TIMING CHARACTERISTICS
TABLE 25-25: INPUT CAPTURE TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C
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 25-26: 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
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 25-1 for load conditions.
OCx
OC11 OC10
(Output Compare
Note: Refer to Figure 25-1 for load conditions.
or PWM Mode)
© 2009 Microchip Technology Inc. DS70286C-page 275
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-8: OC/PWM MODULE TIMING CHARACTERISTICS
TABLE 25-27: 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
Param
No. Symbol Characteristic(1) Min Typ Max Units Conditions
OC15 TFD Fault Input to PWM I/O
Change
50 ns
OC20 TFLT Fault Input Pulse-Width 50 ns
Note 1: These parameters are characterized but not tested in manufacturing.
OCFA/OCFB
OCx
OC20
OC15
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 276 © 2009 Microchip Technology Inc.
FIGURE 25-9: SPIx MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDIx
SP11 SP10
SP40 SP41
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
MSb In LSb In
Bit 14 - - - -1
SP30
SP31
Note: Refer to Figure 25-1 for load conditions.
TABLE 25-28: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP10 TscL SCKx Output Low Time TCY/2 ns See Note 3
SP11 TscH SCKx Output High Time TCY/2 ns See Note 3
SP20 TscF SCKx Output Fall Time ns See parameter D032
and Note 4
SP21 TscR SCKx Output Rise Time ns See parameter D031
and Note 4
SP30 TdoF SDOx Data Output Fall Time ns See parameter D032
and Note 4
SP31 TdoR SDOx Data Output Rise Time ns See parameter D031
and Note 4
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
—620ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
23 ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 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.
3: The minimum clock period for SCKx is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2009 Microchip Technology Inc. DS70286C-page 277
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-10: SPIx MODULE MASTER MODE (CKE = 1) TIMING CHARACTERISTICS
TABLE 25-29: SPIx MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS
SCKX
(CKP = 0)
SCKX
(CKP = 1)
SDOX
SDIX
SP36
SP30,SP31
SP35
MSb
MSb In
Bit 14 - - - - - -1
LSb In
Bit 14 - - - -1
LSb
Note: Refer to Figure 25-1 for load conditions.
SP11 SP10 SP20
SP21
SP21
SP20
SP40
SP41
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP10 TscL SCKx Output Low Time(3) TCY/2 ns
SP11 TscH SCKx Output High Time(3) TCY/2 ns
SP20 TscF SCKx Output Fall Time(4) ns See parameter D032
SP21 TscR SCKx Output Rise Time(4) ns See parameter D031
SP30 TdoF SDOx Data Output Fall
Time(4)
ns See parameter D032
SP31 TdoR SDOx Data Output Rise
Time(4)
ns See parameter D031
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
23 ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
30 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.
3: The minimum clock period for SCKx is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 278 © 2009 Microchip Technology Inc.
FIGURE 25-11: SPIx MODULE SLAVE MODE (CKE = 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
SP71 SP70
Note: Refer to Figure 25-1 for load conditions.
SDIX
TABLE 25-30: SPIx MODULE SLAVE MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C TA +85°C
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscL SCKx Input Low Time 30 ns
SP71 TscH SCKx Input High Time 30 ns
SP72 TscF SCKx Input Fall Time(3) —1025ns
SP73 TscR SCKx Input Rise Time(3) —1025ns
SP30 TdoF SDOx Data Output Fall Time(3) ns See parameter D032
SP31 TdoR SDOx Data Output Rise Time(3) ns See parameter D031
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
30 ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
20 ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
20 ns
SP50 TssL2scH,
TssL2scL
SSx to SCKx or SCKx Input 120 ns
SP51 TssH2doZ SSx to SDOx Output
High-Impedance(3)
10 50 ns
SP52 TscH2ssH
TscL2ssH
SSx after SCKx Edge 1.5 TCY + 40 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.
3: Assumes 50 pF load on all SPIx pins.
© 2009 Microchip Technology Inc. DS70286C-page 279
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-12: SPIx MODULE SLAVE MODE (CKE = 1) 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
SP71 SP70
SP40
SP41
Note: Refer to Figure 25-1 for load conditions.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 280 © 2009 Microchip Technology Inc.
TABLE 25-31: 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 +85°C
Param
No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions
SP70 TscL SCKx Input Low Time 30 ns
SP71 TscH SCKx Input High Time 30 ns
SP72 TscF SCKx Input Fall Time(3) —1025ns
SP73 TscR SCKx Input Rise Time(3) —1025ns
SP30 TdoF SDOx Data Output Fall Time(3) ns See parameter D032
SP31 TdoR SDOx Data Output Rise Time(3) ns See parameter D031
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
30 ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
20 ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
20 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
SP60 TssL2doV SDOx Data Output Valid after
SSx Edge
50 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.
3: The minimum clock period for SCKx is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
© 2009 Microchip Technology Inc. DS70286C-page 281
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-13: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)
FIGURE 25-14: I2Cx BUS DATA TIMING CHARACTERISTICS (MASTER MODE)
IM31 IM34
SCLx
SDAx
Start
Condition
Stop
Condition
IM30 IM33
Note: Refer to Figure 25-1 for load conditions.
IM11 IM10 IM33
IM11
IM10
IM20
IM26 IM25
IM40 IM40 IM45
IM21
SCLx
SDAx
In
SDAx
Out
Note: Refer to Figure 25-1 for load conditions.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 282 © 2009 Microchip Technology Inc.
TABLE 25-32: 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
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
Note 1: BRG is the value of the I2C Baud Rate Generator. Refer to Section 19. “Inter-Integrated Circuit™
(I2C™)” in the “dsPIC33F Family Reference Manual”.
2: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
© 2009 Microchip Technology Inc. DS70286C-page 283
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-15: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)
FIGURE 25-16: 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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 284 © 2009 Microchip Technology Inc.
TABLE 25-33: 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
Param
No. 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) —100ns
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) —300ns
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:STO 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) 0350ns
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).
© 2009 Microchip Technology Inc. DS70286C-page 285
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-17: 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 25-1 for load conditions.
CS20
CS56
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 286 © 2009 Microchip Technology Inc.
TABLE 25-34: 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
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.
© 2009 Microchip Technology Inc. DS70286C-page 287
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-18: DCI MODULE (AC-LINK MODE) TIMING CHARACTERISTICS
TABLE 25-35: 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
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
——10ns
CS66 THACL Input Hold Time from
Falling Edge of BIT_CLK
——10ns
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 10 25 ns CLOAD = 50 pF, VDD = 5V
CS76 TFACL Fall Time, SYNC, SDATA_OUT 10 25 ns CLOAD = 50 pF, VDD = 5V
CS77 TRACL Rise Time, SYNC, SDATA_OUT 30 ns CLOAD = 50 pF, VDD = 3V
CS78 TFACL Fall Time, SYNC, SDATA_OUT 30 ns CLOAD = 50 pF, VDD = 3V
CS80 TOVDACL Output Valid Delay from Rising
Edge of BIT_CLK
——15ns
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.
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
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 288 © 2009 Microchip Technology Inc.
FIGURE 25-19: CAN MODULE I/O TIMING CHARACTERISTICS
CiTx Pin
(output)
CA10 CA11
Old Value New Value
CA20
CiRx Pin
(input)
TABLE 25-36: 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
Param
No. Symbol Characteristic(1) Min Typ 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.
© 2009 Microchip Technology Inc. DS70286C-page 289
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-37: 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
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 + 2.7 AVDD V See Note 2
AD05a 3.0 3.6 V VREFH = AVDD
VREFL = AVSS = 0
AD06 VREFL Reference Voltage Low AVSS —AVDD - 2.7 V See Note 2
AD06a 0 0 V VREFH = AVDD
VREFL = AVSS = 0
AD07 VREF Absolute Reference
Voltage
3.0 3.6 V VREF = VREFH - VREFL
AD08 IREF Current Drain
250
550
1
μΑ
μΑ
ADC operating, see Note 2
ADC off, see Note 2
AD08a IAD Operating Current
7.0
2.7
9.0
3.2
mA
mA
10-bit ADC mode, See Note 3
12-bit ADC mode, See Note 3
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. See Note 1
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. See Note 1
AD17 RIN Recommended Imped-
ance of Analog Voltage
Source
200
200
Ω
Ω
10-bit
12-bit
Note 1: The ADC conversion result never decreases with an increase in the input voltage, and has no missing
codes.
2: These parameters are not characterized or tested in manufacturing.
3: These parameters are characterized; but are not tested in manufacturing.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 290 © 2009 Microchip Technology Inc.
TABLE 25-38: 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
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
ADC Accuracy (12-bit Mode) - Measurements with external VREF+/VREF-
AD20a Nr Resolution 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 1.25 1.5 3 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD24a EOFF Offset Error 1.25 1.52 2 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD25a Monotonicity(1) Guaranteed
ADC Accuracy (12-bit Mode) - Measurements with internal VREF+/VREF-
AD20a Nr Resolution 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 2 3 7 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD24a EOFF Offset Error 2 3 5 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD25a Monotonicity(1) Guaranteed
Dynamic Performance (12-bit Mode)
AD30a THD Total Harmonic Distortion -77 -69 -61 dB
AD31a SINAD Signal to Noise and
Distortion
59 63 64 dB
AD32a SFDR Spurious Free Dynamic
Range
63 72 74 dB
AD33a FNYQ Input Signal Band-Width 250 kHz
AD34a ENOB Effective Number of Bits 10.95 11.1 bits
Note 1: The ADC conversion result never decreases with an increase in the input voltage, and has no missing
codes.
© 2009 Microchip Technology Inc. DS70286C-page 291
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-39: 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
Param
No. Symbol Characteristic Min. Typ Max. Units Conditions
ADC Accuracy (10-bit Mode) - Measurements with external VREF+/VREF-
AD20b Nr Resolution 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 1 3 6 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD24b EOFF Offset Error 1 2 5 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD25b Monotonicity(1) Guaranteed
ADC Accuracy (10-bit Mode) - Measurements with internal VREF+/VREF-
AD20b Nr Resolution 10 data bits bits
AD21b INL Integral Nonlinearity -1 +1 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 1 5 6 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD24b EOFF Offset Error 1 2 3 LSb VINL = AVSS = VREFL =
0V, AVDD = VREFH = 3.6V
AD25b Monotonicity(1) Guaranteed
Dynamic Performance (10-bit Mode)
AD30b THD Total Harmonic Distortion -64 -67 dB
AD31b SINAD Signal to Noise and
Distortion
—5758dB
AD32b SFDR Spurious Free Dynamic
Range
—6062dB
AD33b FNYQ Input Signal Bandwidth 550 kHz
AD34b ENOB Effective Number of Bits 9.1 9.7 9.8 bits
Note 1: The ADC conversion result never decreases with an increase in the input voltage, and has no missing
codes.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 292 © 2009 Microchip Technology Inc.
FIGURE 25-20: ADC CONVERSION (12-BIT MODE) TIMING CHARACTERISTICS
(ASAM = 0, SSRC<2:0> = 000)
AD55
TSAMP
Clear SAMPSet SAMP
AD61
ADCLK
Instruction
SAMP
ch0_dischrg
ch0_samp
AD60
CONV
ADxIF
Buffer(0)
1 2 3 4 5 6 87
1– Software sets ADxCON. SAMP to start sampling.
2– Sampling starts after discharge period. TSAMP is described
3– Software clears ADxCON. SAMP to start conversion.
4– Sampling ends, conversion sequence starts.
5– Convert bit 11.
9– One TAD for end of conversion.
AD50
eoc
9
6– Convert bit 10.
7– Convert bit 1.
8– Convert bit 0.
Execution
in Section 16. “Analog-to-Digital Converter (ADC)”
(DS70183) in the “dsPIC33F Family Reference Manual”.
© 2009 Microchip Technology Inc. DS70286C-page 293
dsPIC33FJXXXGPX06/X08/X10
TABLE 25-40: 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
Param
No. Symbol Characteristic Min. Typ(1) Max. Units Conditions
Clock Parameters
AD50a TAD ADC Clock Period 117.6 ns
AD51a tRC ADC Internal RC Oscillator
Period
250 ns
Conversion Rate
AD55a tCONV Conversion Time 14 TAD ns
AD56a FCNV Throughput Rate 500 ksps
AD57a TSAMP Sample Time 3 TAD ——
Timing Parameters
AD60a tPCS Conversion Start from Sample
Trigger(2)
2.0 TAD 3.0 TAD Auto-Convert Trigger
(SSRC<2:0> = 111) not
selected
AD61a tPSS Sample Start from Setting
Sample (SAMP) bit(2)
2.0 TAD 3.0 TAD ——
AD62a tCSS Conversion Completion to
Sample Start (ASAM = 1)(2)
0.5 TAD ——
AD63a tDPU Time to Stabilize Analog Stage
from ADC Off to ADC On(2,3)
——20μs—
Note 1: These parameters are characterized but not tested in manufacturing.
2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
3: tDPU is the time required for the ADC module to stabilize when it is turned on (AD1CON1<ADON> = 1).
During this time, the ADC result is indeterminate.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 294 © 2009 Microchip Technology Inc.
FIGURE 25-21: ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
AD55
TSAMP
Clear SAMPSet SAMP
AD61
ADCLK
Instruction
SAMP
ch0_dischrg
ch1_samp
AD60
CONV
ADxIF
Buffer(0)
Buffer(1)
1 2 3 4 5 6 8 5 6 7
1– Software sets ADxCON. SAMP to start sampling.
2– Sampling starts after discharge period. TSAMP is described in Section 16. “Analog-to-Digital Converter (ADC)”
3– Software clears ADxCON. SAMP to start conversion.
4– Sampling ends, conversion sequence starts.
5– Convert bit 9.
8– One TAD for end of conversion.
AD50
ch0_samp
ch1_dischrg
eoc
7
AD55
8
6– Convert bit 8.
7– Convert bit 0.
Execution
(DS70183) in the “dsPIC33F Family Reference Manual”.
© 2009 Microchip Technology Inc. DS70286C-page 295
dsPIC33FJXXXGPX06/X08/X10
FIGURE 25-22: 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
Set ADON
ADCLK
Instruction
SAMP
ch0_dischrg
ch1_samp
CONV
ADxIF
Buffer(0)
Buffer(1)
1 2 3 4 5 6 4 5 6 8
1– Software sets ADxCON. ADON to start AD operation.
2– Sampling starts after discharge period. TSAMP is described
3– Convert bit 9.
4– Convert bit 8.
5– Convert bit 0.
AD50
ch0_samp
ch1_dischrg
eoc
7 3
AD55
6– One T
AD for end of conversion.
7– Begin conversion of next channel.
8– Sample for time specified by SAMC<4:0>.
TSAMP
TCONV
3 4
Execution
in Section 16. “Analog-to-Digital Converter (ADC)”
(DS70183) in the “dsPIC33F Family Reference Manual”.
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 296 © 2009 Microchip Technology Inc.
TABLE 25-41: 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
Param
No. Symbol Characteristic Min. Typ(1) Max. Units Conditions
Clock Parameters
AD50b TAD ADC Clock Period 65 ns
AD51b TRC ADC Internal RC Oscillator Period 250 ns
Conversion Rate
AD55b TCONV Conversion Time 12 TAD ——
AD56b FCNV Throughput Rate 1.1 Msps
AD57b TSAMP Sample Time 2 TAD ——
Timing Parameters
AD60b TPCS Conversion Start from Sample
Trigger(2)
2.0 TAD 3.0 TAD Auto-Convert Trigger
(SSRC<2:0> = 111) not
selected
AD61b TPSS Sample Start from Setting
Sample (SAMP) bit(2)
2.0 TAD 3.0 TAD ——
AD62b TCSS Conversion Completion to
Sample Start (ASAM = 1)(2)
0.5 TAD ——
AD63b TDPU Time to Stabilize Analog Stage
from ADC Off to ADC On(2,3)
——20μs—
Note 1: These parameters are characterized but not tested in manufacturing.
2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
3: TDPU is the time required for the ADC module to stabilize when it is turned on (AD1CON1<ADON> = 1).
During this time, the ADC result is indeterminate.
© 2009 Microchip Technology Inc. DS70286C-page 297
dsPIC33FJXXXGPX06/X08/X10
26.0 PACKAGING INFORMATION
26.1 Package Marking Information
64-Lead TQFP (10x10x1 mm)
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
YYWWNNN
Example
dsPIC33FJ
256GP706
0510017
80-Lead TQFP (12x12x1 mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
Example
dsPIC33FJ128
0510017
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: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
3
e
3
e
100-Lead TQFP (12x12x1 mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
Example
dsPIC33FJ256
GP710-I/PT
0510017
GP708-I/PT
100-Lead TQFP (14x14x1mm)
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
100-Lead TQFP (14x14x1mm)
dsPIC33FJ256
GP710-I/PF
0510017
-I/PT
3
e
3
e
3
e
3
e
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 298 © 2009 Microchip Technology Inc.
26.2 Package Details
© 2009 Microchip Technology Inc. DS70286C-page 299
dsPIC33FJXXXGPX06/X08/X10
 !"#$%&
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dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 300 © 2009 Microchip Technology Inc.
80-Lead Plastic Thin Quad Flatpack (PT) – 12x12x1 mm Body, 2.00 mm Footprint [TQFP]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Chamfers at corners are optional; size may vary.
3. Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.25 mm per side.
4. 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 Leads N 80
Lead Pitch e 0.50 BSC
Overall Height A 1.20
Molded Package Thickness A2 0.95 1.00 1.05
Standoff A1 0.05 0.15
Foot Length L 0.45 0.60 0.75
Footprint L1 1.00 REF
Foot Angle φ 3.5°
Overall Width E 14.00 BSC
Overall Length D 14.00 BSC
Molded Package Width E1 12.00 BSC
Molded Package Length D1 12.00 BSC
Lead Thickness c 0.09 0.20
Lead Width b 0.17 0.22 0.27
Mold Draft Angle Top α1 12° 13°
Mold Draft Angle Bottom β1 12° 13°
D
D1
E
E1
e
bN
NOTE 1123 NOTE 2
A
A2
L1
A1
L
c
α
βφ
Microchip Technology Drawing C04-092B
© 2009 Microchip Technology Inc. DS70286C-page 301
dsPIC33FJXXXGPX06/X08/X10
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dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 302 © 2009 Microchip Technology Inc.
100-Lead Plastic Thin Quad Flatpack (PT) – 12x12x1 mm Body, 2.00 mm Footprint [TQFP]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Chamfers at corners are optional; size may vary.
3. Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.25 mm per side.
4. 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 Leads N 100
Lead Pitch e 0.40 BSC
Overall Height A 1.20
Molded Package Thickness A2 0.95 1.00 1.05
Standoff A1 0.05 0.15
Foot Length L 0.45 0.60 0.75
Footprint L1 1.00 REF
Foot Angle φ 3.5°
Overall Width E 14.00 BSC
Overall Length D 14.00 BSC
Molded Package Width E1 12.00 BSC
Molded Package Length D1 12.00 BSC
Lead Thickness c 0.09 0.20
Lead Width b 0.13 0.18 0.23
Mold Draft Angle Top α1 12° 13°
Mold Draft Angle Bottom β1 12° 13°
D
D1
E
E1
e
b
N
123
NOTE 1NOTE 2
c
L
A1 L1
A
A2
α
βφ
Microchip Technology Drawing C04-100B
© 2009 Microchip Technology Inc. DS70286C-page 303
dsPIC33FJXXXGPX06/X08/X10
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dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 304 © 2009 Microchip Technology Inc.
100-Lead Plastic Thin Quad Flatpack (PF) – 14x14x1 mm Body, 2.00 mm Footprint [TQFP]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Chamfers at corners are optional; size may vary.
3. Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.25 mm per side.
4. 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 Leads N 100
Lead Pitch e 0.50 BSC
Overall Height A 1.20
Molded Package Thickness A2 0.95 1.00 1.05
Standoff A1 0.05 0.15
Foot Length L 0.45 0.60 0.75
Footprint L1 1.00 REF
Foot Angle φ 3.5°
Overall Width E 16.00 BSC
Overall Length D 16.00 BSC
Molded Package Width E1 14.00 BSC
Molded Package Length D1 14.00 BSC
Lead Thickness c 0.09 0.20
Lead Width b 0.17 0.22 0.27
Mold Draft Angle Top α1 12° 13°
Mold Draft Angle Bottom β1 12° 13°
D
D1
e
b
E1
E
N
NOTE 1NOTE 2
123
c
LA1 L1
A2
A
φ
β
α
Microchip Technology Drawing C04-110B
© 2009 Microchip Technology Inc. DS70286C-page 305
dsPIC33FJXXXGPX06/X08/X10
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dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 306 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 307
dsPIC33FJXXXGPX06/X08/X10
APPENDIX A: REVISION HISTORY
Revision A (October 2006)
Initial release of this document.
Revision B (March 2008)
This revision includes minor typographical and
formatting changes throughout the data sheet text.
The major changes are referenced by their respective
section in the following table.
TABLE A-1: MAJOR SECTION UPDATES
Section Name Update Description
Section 1.0 “Device Overview” Added External Interrupt pin information (INT0 through INT4) to
Tabl e 1 - 1 .
Section 3.0 “Memory Organization” Updated Change Notification Register Map table title to reflect
application with dsPIC33FJXXXMCX10 devices (Table 3-2).
Added Change Notification Register Map tables (Table 3-3 and
Table 3-4) for dsPIC33FJXXXMCX08 and dsPIC33FJXXXMCX06
devices, respectively.
Updated the bit range for AD1CON3 (ADCS<7:0>) in the ADC1
Register Map and added Note 1 (Table 3-15).
Updated the bit range for AD2CON3 (ADCS<7:0>) in the ADC2
Register Map (Table 3-16).
Updated the Reset value for C1FEN1 (FFFF) in the ECAN1 Register
Map When C1CTRL1.WIN = 0 or 1 (Table 3-18) and updated the
title to reflect applicable devices.
Updated the title in the ECAN1 Register Map When C1CTRL1.WIN
= 0 to reflect applicable devices (Table 3-19).
Updated the title in the ECAN1 Register Map When C1CTRL1.WIN
= 1 to reflect applicable devices (Table 3-20).
Updated the Reset value for C2FEN1 (FFFF) in the ECAN2 Register
Map When C2CTRL1.WIN = 0 or 1 (Table 3-21) and updated the
title to reflect applicable devices.
Updated the title for the ECAN2 Register Map When C2CTRL1.WIN
= 0 to reflect applicable devices (Table 3-22).
Updated the title for the ECAN2 Register Map When C2CTRL1.WIN
= 1 to reflect applicable devices (Table 3-23).
Updated Reset value for TRISA (C6FF) and changed the bit 12 and
bit 13 values for ODCA to unimplemented in the PORTA Register
Map (Table 3-25).
Changed the bit 10 and bit 9 values for PMD1 to unimplemented in
the PMD Register Map (Table 3-34).
Section 5.0 “Reset” Added POR and BOR references in Reset Flag Bit Operation
(Table 5-1).
Section 7.0 “Direct Memory Access (DMA)” Updated the table cross-reference in Note 2 in the DMAxREQ
register (Register 7-2).
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 308 © 2009 Microchip Technology Inc.
Section 8.0 “Oscillator Configuration” Updated the third clock source item (External Clock) in
Section 8.1.1 “System Clock sources”.
Added the center frequency in the OSCTUN register for the FRC
Tuning bits (TUN<5:0>) value 011111 and updated the center
frequency for bits value 011110 (Register 8-4).
Section 15.0 “Serial Peripheral Interface
(SPI)”
Removed redundant information, which is now available in the
related section in the dsPIC33F Family Reference Manual, while
retaining the SPI Module Block Diagram (Figure 15-1).
Section 16.0 “Inter-Integrated Circuit™
(I2C™)”
Removed sections 16.3 through 16.13, while retaining the I2C Block
Diagram (Figure 16-1) (redundant information, which is now
available in the related section in the dsPIC33F Family Reference
Manual).
Section 17.0 “Universal Asynchronous
Receiver Transmitter (UART)”
Removed sections 17.1 through 17.7 (redundant information, which
is now available in the related section in the dsPIC33F Family
Reference Manual).
Section 18.0 “Enhanced CAN (ECAN™)
Module”
Removed sections 18.4 through 18.6 (redundant information, which
is now available in the related section in the dsPIC33F Family
Reference Manual).
Updated Baud Rate Prescaler (BRP<5:0>) bit values in the CiCFG1
register (Register 18-9).
Changed default bit value from ‘0’ to ‘1’ for bits 6 through 15
(FLTEN6-FLTEN15) in the CiFEN1 register (Register 18-11).
Section 19.0 “Data Converter Interface
(DCI) Module”
Removed sections 19.3 through 19.7 (redundant information, which
is now available in the related section in the dsPIC33F Family
Reference Manual).
Section 20.0 “10-Bit/12-Bit
Analog-to-Digital Converter (ADC)”
Removed Equation 20-1 (ADC Conversion Clock Period) and Figure
20-3 (ADC Transfer Function (10-Bit Example).
Updated AN14 and AN15 ADC values in the ADC2 Module Block
Diagram (FIGURE 20-2: “ADC2 Module Block Diagram(1)).
Added Note 2 to ADC Conversion Clock Period Block Diagram
(Figure 20-3).
Updated ADC Conversion Clock Select bits in the ADxCON3
register from ADCS<5:0> to ADCS<7:0>. Any references to these
bits have also been updated throughout this data sheet
(Register 20-3).
Added Note to ADxCHS0 register (Register 21-6).
Section 21.0 “Special Features” Updated address 0xF8000E in the Device Configuration Register
Map (Table 21-1).
Added FICD register content (BKBUG, COE, JTAGEN and
ICS<1:0>) to the dsPIC33F Configuration Bits Description and
removed the last two rows (Table 21-2).
Added a Note after the second paragraph in Section 21.2 “On-Chip
Voltage Regulator”.
TABLE A-1: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
© 2009 Microchip Technology Inc. DS70286C-page 309
dsPIC33FJXXXGPX06/X08/X10
Section 24.0 “Electrical Characteristics” Updated typical value for parameter AD08 (Table 24-37).
Updated minimum and maximum (both internal and external
VREF+/VREF-) values for parameter AD21a (Table 24-38).
Updated minimum, typical, and maximum (external VREF+/VREF-)
values for parameter AD24a (Table 24-38).
Updated maximum value for parameter AD32a (Table 24-38).
Updated minimum and maximum (both internal and external
VREF+/VREF-) values for parameter AD21a (Table 24-38).
Updated minimum and maximum (external VREF+/VREF-) values for
parameter AD21b (Table 24-39).
Updated typical and maximum values for parameter AD32b
(Table 24-39).
Updated minimum, typical, and maximum values for parameter
AD60a (Table 24-40 and Table 24-41).
Updated minimum and maximum values for parameter AD61a
(Table 24-40 and Table 24-41).
Updated minimum and maximum values for parameter AD63a
(Table 24-40 and Table 24-41).
Added Note 3 to ADC Conversion (12-bit Mode) Timing
Requirements (Table 24-40 and Table 24-41).
TABLE A-1: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 310 © 2009 Microchip Technology Inc.
Revision C (March 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).
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 4.0 “Memory Organization Add Accumulator A and B SFRs (ACCAL, ACCAH, ACCAU, ACCBL,
ACCBH and ACCBU) and updated the Reset value for CORCON in the
CPU Core Register Map (see Table 4-1).
Updated Reset values for IPC3, IPC4, IPC11 and IPC13-IPC15 in the
Interrupt Controller Register Map (see Table 4-5).
Updated the Reset value for CLKDIV in the System Control Register Map
(see Table 4-32).
Section 5.0 “Flash Program Memory” Updated Section 5.3 “Programming Operations” with programming
time formula.
Section 9.0 “Oscillator Configuration” Added Note 2 to the Oscillator System Diagram (see Figure 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 1 to the FRC Oscillator Tuning (OSCTUN) Register (see
Register 9-4).
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” Added reference to pin diagrams for I/O pin availability and functionality
(see Section 11.2 “Open-Drain Configuration”).
Section 16.0 “Serial Peripheral
Interface (SPI)”
Added Note 2 to the SPIxCON1 register (see Register 16-2).
Section 18.0 “Universal
Asynchronous Receiver Transmitter
(UART)”
Updated the UTXINV bit settings in the UxSTA register (see
Register 18-2).
© 2009 Microchip Technology Inc. DS70286C-page 311
dsPIC33FJXXXGPX06/X08/X10
Section 19.0 “Enhanced CAN
(ECAN™) Module”
Changed bit 11 in the ECAN Control Register 1 (CiCTRL1) to Reserved
(see Register 19-1).
Added the ECAN Filter 15-8 Mask Selection (CiFMSKSEL2) register (see
Register 19-19).
Section 21.0 “10-Bit/12-Bit
Analog-to-Digital Converter (ADC)”
Replaced the ADC Module Block Diagram (see Figure 21-1) and removed
Figure 21-2.
Section 22.0 “Special Features” Added Note 2 to the Device Configuration Register Map (see Table 22-1)
Section 25.0 “Electrical
Characteristics”
Updated Typical values for Thermal Packaging Characteristics (see
Table 25-3).
Updated Min and Max values for parameter DC12 (RAM Data Retention
Voltage) and added Note 4 (see Table 25-4).
Updated Power-Down Current Max values for parameters DC60b and
DC60c (see Table 25-7).
Updated Characteristics for I/O Pin Input Specifications (see Table 25-9).
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 25-12).
Added parameter OS42 (GM) to the External Clock Timing Requirements
(see Table 25-16).
Updated Watchdog Timer Time-out Period parameter SY20 (see
Table 25-21).
TABLE A-2: MAJOR SECTION UPDATES (CONTINUED)
Section Name Update Description
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 312 © 2009 Microchip Technology Inc.
NOTES:
© 2009 Microchip Technology Inc. DS70286C-page 313
dsPIC33FJXXXGPX06/X08/X10
INDEX
A
A/D Converter ................................................................... 225
DMA .......................................................................... 225
Initialization ............................................................... 225
Key Features............................................................. 225
AC Characteristics ............................................................ 266
Internal RC Accuracy ................................................ 268
Load Conditions ........................................................ 266
ADC Module
ADC11 Register Map .................................................. 49
ADC2 Register Map .................................................... 49
Alternate Interrupt Vector Table (AIVT) .............................. 81
Arithmetic Logic Unit (ALU)................................................. 27
Assembler
MPASM Assembler................................................... 254
B
Barrel Shifter ....................................................................... 31
Bit-Reversed Addressing .................................................... 64
Example ...................................................................... 65
Implementation ........................................................... 64
Sequence Table (16-Entry)......................................... 65
Block Diagrams
16-bit Timer1 Module ................................................ 157
A/D Module ............................................................... 226
Connections for On-Chip Voltage Regulator............. 241
DCI Module ............................................................... 218
Device Clock ..................................................... 137, 139
DSP Engine ................................................................ 28
dsPIC33F .................................................................... 14
dsPIC33F CPU Core................................................... 22
ECAN Module ........................................................... 192
Input Capture ............................................................ 165
Output Compare ....................................................... 167
PLL............................................................................ 139
Reset System.............................................................. 77
Shared Port Structure ............................................... 155
SPI ............................................................................ 171
Timer2 (16-bit) .......................................................... 161
Timer2/3 (32-bit) ....................................................... 160
UART ........................................................................ 185
Watchdog Timer (WDT) ............................................ 242
C
C Compilers
MPLAB C18 .............................................................. 254
MPLAB C30 .............................................................. 254
Clock Switching................................................................. 145
Enabling .................................................................... 145
Sequence.................................................................. 145
Code Examples
Erasing a Program Memory Page............................... 75
Initiating a Programming Sequence............................ 76
Loading Write Buffers ................................................. 76
Port Write/Read ........................................................ 156
PWRSAV Instruction Syntax..................................... 147
Code Protection ........................................................ 237, 243
Configuration Bits.............................................................. 237
Description (Table).................................................... 238
Configuration Register Map .............................................. 237
Configuring Analog Port Pins............................................ 156
CPU
Control Register .......................................................... 24
CPU Clocking System ...................................................... 138
Options ..................................................................... 138
Selection................................................................... 138
Customer Change Notification Service............................. 317
Customer Notification Service .......................................... 317
Customer Support............................................................. 317
D
Data Accumulators and Adder/Subtractor .......................... 29
Data Space Write Saturation ...................................... 31
Overflow and Saturation ............................................. 29
Round Logic ............................................................... 30
Write Back .................................................................. 30
Data Address Space........................................................... 35
Alignment.................................................................... 35
Memory Map for dsPIC33FJXXXGPX06/X08/X10 Devic-
es with 16 KB RAM............................................. 37
Memory Map for dsPIC33FJXXXGPX06/X08/X10 Devic-
es with 30 KB RAM............................................. 38
Memory Map for dsPIC33FJXXXGPX06/X08/X10 Devic-
es with 8 KB RAM............................................... 36
Near Data Space ........................................................ 35
Software Stack ........................................................... 61
Width .......................................................................... 35
Data Converter Interface (DCI) Module ............................ 217
DC Characteristics............................................................ 258
I/O Pin Input Specifications ...................................... 263
I/O Pin Output Specifications.................................... 264
Idle Current (IIDLE) .................................................... 261
Operating Current (IDD) ............................................ 260
Power-Down Current (IPD)........................................ 262
Program Memory...................................................... 265
Temperature and Voltage Specifications.................. 259
DCI
Buffer Control ........................................................... 217
Buffer Data Alignment .............................................. 217
Introduction............................................................... 217
Transmit/Receive Shift Register ............................... 217
DCI I/O Pins...................................................................... 217
COFS........................................................................ 217
CSCK........................................................................ 217
CSDI ......................................................................... 217
CSDO ....................................................................... 217
DCI Module
Register Map .............................................................. 58
Development Support....................................................... 253
DMA Module
DMA Register Map ..................................................... 50
DMAC Registers............................................................... 128
DMAxCNT ................................................................ 128
DMAxCON................................................................ 128
DMAxPAD ................................................................ 128
DMAxREQ ................................................................ 128
DMAxSTA................................................................. 128
DMAxSTB................................................................. 128
DSP Engine ........................................................................ 27
Multiplier ..................................................................... 29
E
ECAN Module
CiFMSKSEL2 register .............................................. 209
ECAN1 Register Map (C1CTRL1.WIN = 0 or 1)......... 52
ECAN1 Register Map (C1CTRL1.WIN = 0)................ 52
ECAN1 Register Map (C1CTRL1.WIN = 1)................ 53
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 314 © 2009 Microchip Technology Inc.
ECAN2 Register Map (C2CTRL1.WIN = 0 or 1) ......... 55
ECAN2 Register Map (C2CTRL1.WIN = 0) .......... 55, 56
Frame Types............................................................. 191
Modes of Operation .................................................. 193
Overview ................................................................... 191
ECAN Registers
Filter 15-8 Mask Selection Register (CiFMSKSEL2). 209
Electrical Characteristics................................................... 257
AC ............................................................................. 266
Enhanced CAN Module..................................................... 191
Equations
Device Operating Frequency .................................... 138
Errata .................................................................................. 12
F
Flash Program Memory....................................................... 71
Control Registers ........................................................ 72
Operations .................................................................. 72
Programming Algorithm .............................................. 75
RTSP Operation.......................................................... 72
Table Instructions........................................................ 71
Flexible Configuration ....................................................... 237
FSCM
Delay for Crystal and PLL Clock Sources ................... 80
Device Resets............................................................. 80
I
I/O Ports ............................................................................ 155
Parallel I/O (PIO)....................................................... 155
Write/Read Timing .................................................... 156
I2C
Operating Modes ...................................................... 177
Registers................................................................... 177
I2C Module
I2C1 Register Map ...................................................... 47
I2C2 Register Map ...................................................... 47
In-Circuit Debugger ........................................................... 243
In-Circuit Emulation........................................................... 237
In-Circuit Serial Programming (ICSP) ....................... 237, 243
Input Capture
Registers................................................................... 166
Input Change Notification Module ..................................... 156
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 ................................................................... 248
Summary................................................................... 245
Instruction-Based Power-Saving Modes ........................... 147
Idle ............................................................................ 148
Sleep......................................................................... 147
Internal RC Oscillator
Use with WDT ........................................................... 242
Internet Address................................................................ 317
Interrupt Control and Status Registers................................ 85
IECx ............................................................................ 85
IFSx............................................................................. 85
INTCON1 .................................................................... 85
INTCON2 .................................................................... 85
IPCx ............................................................................ 85
Interrupt Setup Procedures ............................................... 125
Initialization ............................................................... 125
Interrupt Disable ....................................................... 125
Interrupt Service Routine.......................................... 125
Trap Service Routine ................................................ 125
Interrupt Vector Table (IVT) ................................................ 81
Interrupts Coincident with Power Save Instructions ......... 148
J
JTAG Boundary Scan Interface ........................................ 237
M
Memory Organization ......................................................... 33
Microchip Internet Web Site.............................................. 317
Modes of Operation
Disable...................................................................... 193
Initialization............................................................... 193
Listen All Messages.................................................. 193
Listen Only................................................................ 193
Loopback .................................................................. 193
Normal Operation ..................................................... 193
Modulo Addressing ............................................................. 62
Applicability................................................................. 64
Operation Example..................................................... 63
Start and End Address ............................................... 63
W Address Register Selection .................................... 63
MPLAB ASM30 Assembler, Linker, Librarian ................... 254
MPLAB ICD 2 In-Circuit Debugger ................................... 255
MPLAB ICE 2000 High-Performance Universal In-Circuit Em-
ulator......................................................................... 255
MPLAB Integrated Development Environment Software.. 253
MPLAB PM3 Device Programmer .................................... 255
MPLAB REAL ICE In-Circuit Emulator System ................ 255
MPLINK Object Linker/MPLIB Object Librarian ................ 254
N
NVM Module
Register Map .............................................................. 60
O
Open-Drain Configuration................................................. 156
Output Compare ............................................................... 167
P
Packaging ......................................................................... 297
Details....................................................................... 298
Marking..................................................................... 297
Peripheral Module Disable (PMD) .................................... 148
PICSTART Plus Development Programmer..................... 256
Pinout I/O Descriptions (table)............................................ 15
PMD Module
Register Map .............................................................. 60
POR and Long Oscillator Start-up Times ........................... 80
PORTA
Register Map .............................................................. 58
PORTB
Register Map .............................................................. 58
PORTC
Register Map .............................................................. 59
PORTD
Register Map .............................................................. 59
PORTE
Register Map .............................................................. 59
PORTF
Register Map .............................................................. 59
PORTG
Register Map .............................................................. 60
Power-Saving Features .................................................... 147
© 2009 Microchip Technology Inc. DS70286C-page 315
dsPIC33FJXXXGPX06/X08/X10
Clock Frequency and Switching................................ 147
Program Address Space..................................................... 33
Construction................................................................ 66
Data Access from Program Memory Using Program
Space Visibility.................................................... 69
Data Access from Program Memory Using Table Instruc-
tions .................................................................... 68
Data Access from, Address Generation...................... 67
Memory Map ............................................................... 33
Table Read Instructions
TBLRDH ............................................................. 68
TBLRDL .............................................................. 68
Visibility Operation ...................................................... 69
Program Memory
Interrupt Vector ........................................................... 34
Organization................................................................ 34
Reset Vector ............................................................... 34
R
Reader Response ............................................................. 318
Registers
ADxCHS0 (ADCx Input Channel 0 Select................. 234
ADxCHS123 (ADCx Input Channel 1, 2, 3 Select) ... 233
ADxCON1 (ADCx Control 1)..................................... 228
ADxCON2 (ADCx Control 2)..................................... 230
ADxCON3 (ADCx Control 3)..................................... 231
ADxCON4 (ADCx Control 4)..................................... 232
ADxCSSH (ADCx Input Scan Select High)............... 235
ADxCSSL (ADCx Input Scan Select Low) ................ 235
ADxPCFGH (ADCx Port Configuration High) ........... 236
ADxPCFGL (ADCx Port Configuration Low)............. 236
CiBUFPNT1 (ECAN Filter 0-3 Buffer Pointer)........... 204
CiBUFPNT2 (ECAN Filter 4-7 Buffer Pointer)........... 205
CiBUFPNT3 (ECAN Filter 8-11 Buffer Pointer)......... 205
CiBUFPNT4 (ECAN Filter 12-15 Buffer Pointer)....... 206
CiCFG1 (ECAN Baud Rate Configuration 1) ............ 202
CiCFG2 (ECAN Baud Rate Configuration 2) ............ 203
CiCTRL1 (ECAN Control 1) ...................................... 194
CiCTRL2 (ECAN Control 2) ...................................... 195
CiEC (ECAN Transmit/Receive Error Count)............ 201
CiFCTRL (ECAN FIFO Control)................................ 197
CiFEN1 (ECAN Acceptance Filter Enable) ............... 204
CiFIFO (ECAN FIFO Status)..................................... 198
CiFMSKSEL1 (ECAN Filter 7-0 Mask Selection)..... 208,
209
CiINTE (ECAN Interrupt Enable) .............................. 200
CiINTF (ECAN Interrupt Flag)................................... 199
CiRXFnEID (ECAN Acceptance Filter n Extended Identi-
fier).................................................................... 207
CiRXFnSID (ECAN Acceptance Filter n Standard Identi-
fier).................................................................... 207
CiRXFUL1 (ECAN Receive Buffer Full 1) ................. 211
CiRXFUL2 (ECAN Receive Buffer Full 2) ................. 211
CiRXMnEID (ECAN Acceptance Filter Mask n Extended
Identifier)........................................................... 210
CiRXMnSID (ECAN Acceptance Filter Mask n Standard
Identifier)........................................................... 210
CiRXOVF1 (ECAN Receive Buffer Overflow 1) ........ 212
CiRXOVF2 (ECAN Receive Buffer Overflow 2) ........ 212
CiTRBnDLC (ECAN Buffer n Data Length Control) .. 215
CiTRBnDm (ECAN Buffer n Data Field Byte m) ....... 215
CiTRBnEID (ECAN Buffer n Extended Identifier) ..... 214
CiTRBnSID (ECAN Buffer n Standard Identifier) ...... 214
CiTRBnSTAT (ECAN Receive Buffer n Status) ........ 216
CiTRmnCON (ECAN TX/RX Buffer m Control)......... 213
CiVEC (ECAN Interrupt Code).................................. 196
CLKDIV (Clock Divisor) ............................................ 142
CORCON (Core Control)...................................... 26, 86
DCICON1 (DCI Control 1) ........................................ 219
DCICON2 (DCI Control 2) ........................................ 220
DCICON3 (DCI Control 3) ........................................ 221
DCISTAT (DCI Status) ............................................. 222
DMACS0 (DMA Controller Status 0) ........................ 133
DMACS1 (DMA Controller Status 1) ........................ 135
DMAxCNT (DMA Channel x Transfer Count) ........... 132
DMAxCON (DMA Channel x Control)....................... 129
DMAxPAD (DMA Channel x Peripheral Address) .... 132
DMAxREQ (DMA Channel x IRQ Select) ................. 130
DMAxSTA (DMA Channel x RAM Start Address A) . 131
DMAxSTB (DMA Channel x RAM Start Address B) . 131
DSADR (Most Recent DMA RAM Address) ............. 136
I2CxCON (I2Cx Control)........................................... 179
I2CxMSK (I2Cx Slave Mode Address Mask)............ 183
I2CxSTAT (I2Cx Status) ........................................... 181
ICxCON (Input Capture x Control)............................ 166
IEC0 (Interrupt Enable Control 0) ............................... 98
IEC1 (Interrupt Enable Control 1) ............................. 100
IEC2 (Interrupt Enable Control 2) ............................. 102
IEC3 (Interrupt Enable Control 3) ............................. 104
IEC4 (Interrupt Enable Control 4) ............................. 105
IFS0 (Interrupt Flag Status 0) ..................................... 90
IFS1 (Interrupt Flag Status 1) ..................................... 92
IFS2 (Interrupt Flag Status 2) ..................................... 94
IFS3 (Interrupt Flag Status 3) ..................................... 96
IFS4 (Interrupt Flag Status 4) ..................................... 97
INTCON1 (Interrupt Control 1) ................................... 87
INTCON2 (Interrupt Control 2) ................................... 89
INTTREG Interrupt Control and Status Register ...... 124
IPC0 (Interrupt Priority Control 0) ............................. 106
IPC1 (Interrupt Priority Control 1) ............................. 107
IPC10 (Interrupt Priority Control 10) ......................... 116
IPC11 (Interrupt Priority Control 11) ......................... 117
IPC12 (Interrupt Priority Control 12) ......................... 118
IPC13 (Interrupt Priority Control 13) ......................... 119
IPC14 (Interrupt Priority Control 14) ......................... 120
IPC15 (Interrupt Priority Control 15) ......................... 121
IPC16 (Interrupt Priority Control 16) ......................... 122
IPC17 (Interrupt Priority Control 17) ......................... 123
IPC2 (Interrupt Priority Control 2) ............................. 108
IPC3 (Interrupt Priority Control 3) ............................. 109
IPC4 (Interrupt Priority Control 4) ............................. 110
IPC5 (Interrupt Priority Control 5) ............................. 111
IPC6 (Interrupt Priority Control 6) ............................. 112
IPC7 (Interrupt Priority Control 7) ............................. 113
IPC8 (Interrupt Priority Control 8) ............................. 114
IPC9 (Interrupt Priority Control 9) ............................. 115
NVMCOM (Flash Memory Control) ...................... 73, 74
OCxCON (Output Compare x Control) ..................... 169
OSCCON (Oscillator Control)................................... 140
OSCTUN (FRC Oscillator Tuning)............................ 144
PLLFBD (PLL Feedback Divisor) ............................. 143
PMD1 (Peripheral Module Disable Control Register 1) ..
149
PMD2 (Peripheral Module Disable Control Register 2) ..
151
PMD3 (Peripheral Module Disable Control Register 3) ..
153
RCON (Reset Control)................................................ 78
RSCON (DCI Receive Slot Control) ......................... 223
SPIxCON1 (SPIx Control 1) ..................................... 173
SPIxCON2 (SPIx Control 2) ..................................... 175
dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 316 © 2009 Microchip Technology Inc.
SPIxSTAT (SPIx Status and Control) ....................... 172
SR (CPU Status)................................................... 24, 86
T1CON (Timer1 Control)........................................... 158
TSCON (DCI Transmit Slot Control) ......................... 223
TxCON (T2CON, T4CON, T6CON or T8CON Control) ..
162
TyCON (T3CON, T5CON, T7CON or T9CON Control) ..
163
UxMODE (UARTx Mode).......................................... 186
UxSTA (UARTx Status and Control)......................... 188
Reset
Clock Source Selection............................................... 79
Special Function Register Reset States ..................... 80
Times .......................................................................... 79
Reset Sequence.................................................................. 81
Resets ................................................................................. 77
S
Serial Peripheral Interface (SPI) ....................................... 171
Software Simulator (MPLAB SIM)..................................... 254
Software Stack Pointer, Frame Pointer
CALLL Stack Frame.................................................... 61
Special Features of the CPU............................................. 237
SPI Module
SPI1 Register Map...................................................... 48
SPI2 Register Map...................................................... 48
Symbols Used in Opcode Descriptions............................. 246
System Control
Register Map............................................................... 60
T
Temperature and Voltage Specifications
AC ............................................................................. 266
Timer1 ............................................................................... 157
Timer2/3, Timer4/5, Timer6/7 and Timer8/9 ..................... 159
Timing Characteristics
CLKO and I/O ........................................................... 269
Timing Diagrams
10-bit A/D Conversion (CHPS = 01, SIMSAM = 0, ASAM
= 0, SSRC = 000).............................................. 294
10-bit A/D Conversion (CHPS = 01, SIMSAM =
0, ASAM = 1, SSRC = 111, SAMC =
00001)........................................................... 295
12-bit A/D Conversion (ASAM = 0, SSRC = 000) ..... 292
CAN I/O..................................................................... 288
DCI AC-Link Mode .................................................... 287
DCI Multi -Channel, I2S Modes ................................. 285
External Clock........................................................... 267
I2Cx Bus Data (Master Mode) .................................. 281
I2Cx Bus Data (Slave Mode) .................................... 283
I2Cx Bus Start/Stop Bits (Master Mode) ................... 281
I2Cx Bus Start/Stop Bits (Slave Mode) ..................... 283
Input Capture (CAPx) ............................................... 274
OC/PWM................................................................... 275
Output Compare (OCx)............................................. 274
Reset, Watchdog Timer, Oscillator Start-up Timer and
Power-up Timer ................................................ 270
SPIx Master Mode (CKE = 0) ................................... 276
SPIx Master Mode (CKE = 1) ................................... 277
SPIx Slave Mode (CKE = 0) ..................................... 278
SPIx Slave Mode (CKE = 1) ..................................... 279
Timer1, 2, 3, 4, 5, 6, 7, 8, 9 External Clock .............. 272
Timing Requirements
CLKO and I/O ........................................................... 269
DCI AC-Link Mode............................................ 287, 289
DCI Multi-Channel, I2S Modes.......................... 286, 289
External Clock........................................................... 267
Input Capture ............................................................ 274
Timing Specifications
10-bit A/D Conversion Requirements ....................... 296
12-bit A/D Conversion Requirements ....................... 293
CAN I/O Requirements ............................................. 288
I2Cx Bus Data Requirements (Master Mode)........... 282
I2Cx Bus Data Requirements (Slave Mode)............. 284
Output Compare Requirements................................ 274
PLL Clock ................................................................. 268
Reset, Watchdog Timer, Oscillator Start-up Timer, Pow-
er-up Timer and Brown-out Reset Requirements...
271
Simple OC/PWM Mode Requirements ..................... 275
SPIx Master Mode (CKE = 0) Requirements............ 276
SPIx Master Mode (CKE = 1) Requirements............ 277
SPIx Slave Mode (CKE = 0) Requirements.............. 278
SPIx Slave Mode (CKE = 1) Requirements.............. 280
Timer1 External Clock Requirements ....................... 272
Timer2, Timer4, Timer6 and Timer8 External Clock Re-
quirements........................................................ 273
Timer3, Timer5, Timer7 and Timer9 External Clock Re-
quirements........................................................ 273
U
UART Module
UART1 Register Map.................................................. 48
UART2 Register Map.................................................. 48
V
Voltage Regulator (On-Chip) ............................................ 241
W
Watchdog Timer (WDT)............................................ 237, 242
Programming Considerations ................................... 242
WWW Address ................................................................. 317
WWW, On-Line Support ..................................................... 12
© 2009 Microchip Technology Inc. DS70286C-page 317
dsPIC33FJXXXGPX06/X08/X10
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DS70286CdsPIC33FJXXXGPX06/X08/X10
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© 2009 Microchip Technology Inc. DS70286C-page 319
dsPIC33FJXXXGPX06/X08/X10
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
GP5 = General purpose family
GP7 = General purpose family
Pin Count: 06 = 64-pin
08 = 80-pin
10 = 100-pin
Temperature Range: I = -40°C to +85°C (Industrial)
Package: PT = 10x10 or 12x12 mm TQFP (Thin Quad Flatpack)
PF = 14x14 mm TQFP (Thin Quad Flatpack)
Pattern Three-digit QTP, SQTP, Code or Special Requirements
(blank otherwise)
ES = Engineering Sample
Examples:
a) dsPIC33FJ256GP710I/PT:
General-purpose dsPIC33, 64 KB program
memory, 100-pin, Industrial temp.,
TQFP package.
Microchip Trademark
Architecture
Flash Memory Family
Program Memory Size (KB)
Product Group
Pin Count
Temperature Range
Package
Pattern
dsPIC 33 FJ 256 GP7 10 T I / PT - XXX
Tape and Reel Flag (if applicable)
DS70286C-page 320 © 2009 Microchip Technology Inc.
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Fax: 86-29-8833-7256
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
ASIA/PACIFIC
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4080
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 - 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: 886-3-572-9526
Fax: 886-3-572-6459
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
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
02/04/09