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