Rev.: 01 EM-AT91SAM3U LCD Interface Expansion Board (EB-AT91SAM3U-LCD) User Guide 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) 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 Lower 8-bit data bus 6~13 D1~D8 Data bit 9, default connected to GND on MCU board 14 D9 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 Reserved for 4-wire resistor touch screen terminal 31 XL 32 YD 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 LED power supply (-) 1, 2 LED K 3, 4 LED A LED power supply (+) 5 GND Ground (0V) 6 XR 7 YD 4-wire resistor touch screen terminal 8 XL 9 YU 10 GND Ground (0V) 11~13 NC No Connection Reset input signal for LCD 14 Reset Chip select for LCD 15 CS 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