4.1.2 LCD Extension Connector

Extension connector EXT4 is a special connector for LCD displays. The physical connector is a TE Connectivity 5-1734839-0 FPC connector.

Table 4-4. LCD Display Connector EXT4
Pin on EXT4	XMEGA pin	Function	Shared functionality
1 [ID]	-	-	Communication line to ID chip on extension board
2 [GND]	-	-	GND
3 [D0]	PJ0	D0	SRAM
4 [D1]	PJ1	D1	SRAM
5 [D2]	PJ2	D2	SRAM
6 [D3]	PJ3	D3	SRAM
7 [GND]	-	-	GND
8 [D4]	PJ4	D4	SRAM
9 [D5]	PJ5	D5	SRAM
10 [D6]	PJ6	D6	SRAM
11 [D7]	PJ7	D7	SRAM
12 [GND]	-	-	GND
13 [D8]	-	-
14 [D9]	-	-
15 [D10]	-	-
16 [D11]	-	-
17 [GND]	-	-	GND
18 [D12]	-	-
19 [D13]	-	-
20 [D14]	-	-
21 [D15]	-	-
22 [GND]	-	-	GND
23 [D16]	-	-
24 [D17]	-	-
25 [D18]	-	-
26 [D19]	-	-
27 [GND]	-	-	GND
28 [D20]	-	-
29 [D21]	-	-
30 [D22]	-	-
31 [D23]	-	-
32 [GND]	-	-	GND
33 [PCLK / CMD_DATA_SEL]	PJ0 ALE1⁽¹⁾	A0	SRAM
34 [VSYNC / CS]	PH7	EBI CS3
35 [HSYNC / WE]	PH0	EBI NWE	SRAM
36 [DATA ENABLE / RE]	PH1	EBI NRD	SRAM
37 [SPI SCK]	PC7	SPIC SCK	EXT1, EXT2, EXT3, and Alternate signal header
38 [SPI MOSI]	PC5	SPIC MOSI	EXT1, EXT2, and EXT3
39 [SPI MISO]	PC6	SPIC MISO	EXT1, EXT2, EXT3, and Alternate signal header
40 [SPI SS]	PB1	GPIO
41 [DISP ENABLE]	PK5	GPIO	EDBG DGI
42 [TWI SDA]	PC0	TWIC SDA	EXT1 and EDBG
43 [TWI SCL]	PC1	TWIC SCL	EXT1 and EDBG
44 [IRQ1]	PK4	GPIO	EDBG DGI
45 [IRQ2]	PK6	GPIO	EDBG DGI
46 [PWM]	PF5	TCF1 OC1B
47 [RESET]	PA5	GPIO
48 [VCC]	-	VCC_P3V3
49 [VCC]	-	VCC_P3V3
50 [GND]	-	GND

Note:

XMEGA A1U