Rev.: 01
1 EB-AT91SAM3U-LCD Overview
The EB-AT91SAM3U-LCD is an extension board for the EM-AT91SAM3U Development Board (see Figure 1).
Figure 1. LCD connector expansion board for EM-AT91SAM3U
The expansion board has build in LED backlight driver circuit and 60pin FPC connector for the Kentec LCDs
(3.5 inch: K350QVG-V2-F; 4.3 inch: K430WQC-V3-FF; 5.0 inch: K50DWN2-V1-FF; 7.0 inch: K70DWN2-V1-FF;
9.0 inch: K90DWN2-V1-FF).
2 EB-AT91SAM3U-LCD Dimensions
Figure 2. Outline Dimensions (Top) Figure 2. LCD connector Location (Bottom)
EM-AT91SAM3U LCD Interface Expansion Board
(EB-AT91SAM3U-LCD) User Guide
Rev.: 01
3 EB-AT91SAM3U-LCD Interface
Table 1. Main Interface Signal (40pin header connect to EM-AT91SAM3U MCU board)
Pin Symbol Description
1 CS Chip select signal for LCD
2 RS Command/Data control signal for LCD
3 WR Write control signal for LCD
4 RD Read control signal for LCD
5 D0 Data bit 0, default connected to GND on MCU board
6~13
D1~D8 Lower 8-bit data bus
14 D9 Data bit 9, default connected to GND on MCU board
15~22
D10~D17 Upper 8-bit data bus
23, 24
GND Ground (0V)
25 Reset Reset input signal for LCD
26 BL_ON Backlight control input, “H”: ON, “L”: OFF, PWM for dimming control
27, 28
GND Ground (0V)
29 XR
30 YU
31 XL
32 YD
Reserved for 4-wire resistor touch screen terminal
33, 34
GND Ground (0V)
35, 36
3.3V Power Supply (3.3V)
Table 2. LCD Interface Signal (60pin ZIF connector to LCD module)
Pin Symbol Description
1, 2 LED_K LED power supply (-)
3, 4 LED_A LED power supply (+)
5 GND Ground (0V)
6 XR
7 YD
8 XL
9 YU
4-wire resistor touch screen terminal
10 GND Ground (0V)
11~13
NC No Connection
14 Reset Reset input signal for LCD
15 CS Chip select for LCD
16~19
NC No Connection
20 D0 Data bit 0, default connected to GND on MCU board
21~25
D1~D5 Data bit 1 ~ bit 5
26, 27
NC No Connection
28~30
D6~D8 Data bit 6 ~ bit 8
31 D9 Data bit 9, default connected to GND on MCU board
32, 33
D10, D11 Data bit 10 ~ bit 11
34, 35
NC No Connection
Rev.: 01
Continued Table 2, LCD Interface Signal (60pin ZIF connector to LCD module)
36~41
D12~D17 Data bit 12 ~ bit 17
42~44
GND Ground (0V)
45, 46
AVDD Power supply (3.3V)
47, 48
VCC Power supply (3.3V)
49 RS Command/Data select signal for LCD
50 RD Read control signal for LCD
51 WR Write control signal for LCD
52 PS0
53 PS1
54 PS2
55 PS3
LCD interface select pin for K350QVG-V2-F, default set to i8080 16-bit parallel.
56, 57
NC No connection
58~60
GND Ground (0V)
4 Schematics
1 2 3 4
A
B
C
D
4321
D
C
B
ATitle
Number RevisionSize
A4
Date: 22-Aug-2011 Sheet of
File: D:\KentecDisplay\Element14\Embest\EM-AT91SAM3U\PCB\EM-AT91SAM3U_LCD.ddbDrawn By:
LED-K
1
LED-K
2
LED-A
3
LED-A
4
GND
5
XR
6
YD
7
XL
8
YU
9
GND
10
NC
11
NC
12
NC
13
RESET
14
CS
15
SPCLK
16
SPSDA
17
NC
18
NC
19
D0
20
D1
21
D2
22
D3
23
D4
24
D5
25
NC
26
NC
27
D6
28
D7
29
D8
30
D9
31
D10
32
D11
33
NC
34
NC
35
D12
36
D13
37
D14
38
D15
39
D16
40
D17
41
HSYNC
42
VSYNC
43
DCLK
44
AVDD
45
AVDD
46
VCC
47
VCC
48
DC
49
RD
50
WR
51
PS0
52
PS1
53
PS2
54
PS3
55
WSYNC
56
NC
57
OE(DEN)
58
GND
59
GND
60
CN1
3V3
PS0
PS1
PS2
PS3
R7
R4
R8
R6
R5
R3
R2
R1
R19
3V3
R11
R12
R13
R14
R15
R16
R17
R18
3V3
RESET
CS
RS
WR
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
RD
XR
YD
XL
YU
LED-K
LED-A
LED-K
LED-A
L1
22uH
C3
4.7uF D1 C4
1.0uF
R21
15R(for 20mA)
R10
100K
R20 NC
3V3
VIN
1
GND
2
EN
3FB 4
SW 5
GND 0
U1
PT4110
SW
D2
C1
0.1uF C2
0.1uF
3V3 3V3
LED-A
LED-K
R9
NC
CS
RS
WR/SCL
RD
RESET
3V3
SCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
P1
CON36
XR
YU
XL
YD
0
0
NC
NC
0
0
0
0
NC
NC
NC
NC
NC
0
0
0
0
BL_ON
Figure 3. Expansion board schematic
5 LCD driver code examples
Bellow attachment is the source code for the K350QVG-V2-F.
NO.
Document Attachment
1 Source code package
