Eurotech Appliances PXA270 PXA270 GPIO pin assignments, Dir, Dir, Key:, GPIO, Active, in the, source, Wake-up, See section…, Pin direction, Specification, AF Signal name, Active Function

ZEUS Technical Manual Detailed hardware description

PXA270 GPIO pin assignments

The table below summarizes the use of the 118 PXA270 GPIO pins, their direction, alternate function and active level.

Key:

AF			Alternate function.
Dir			Pin direction.
Active			Function active level or edge.
			For details of pin states during sleep modes and reset see the Pin Usage table
			in the Intel PXA27x Processor Family Electrical, Mechanical and Thermal
			Specification.
	GPIO						Wake-up
	No	AF Signal name		Dir	Active Function		source	See section…
0		0	AC97_IRQ	Input		AC97Interrupt	3	Audio, page 49
1		0	DS_WAKEUP	Input		Reset in case of power	3
						failure
3		0	PWR_SCL	Output				Power management IC,
						PXA270 Power Manager I2C
4		0	PWR_SDA	Bidir.				page 64
5		N/A PWR_CAP0		Power
6		N/A PWR_CAP1		Power		Dedicated function - To
						achieve low power during		N/A
7		N/A PWR_CAP2		Power		sleep
8		N/A PWR_CAP3		Power

9	0	UART_INTA	Input	UART 1 Interrupt
10	0	UART_INTB		UART 2 Interrupt
			Input
11	0	UART_INTD	Input	UART 4 Interrupt
12	0	UART_INTC	Input	UART 3 Interrupt

3

3

3

3

Serial COM ports, page 53

13	0 USER_LINK1 Input	User Configurable Input	3	JP1 – User jumpers,
				page 93

continued…

© 2007 Eurotech Ltd Issue D 22