Silex technology SX-550 manual General Purpose IO Signal Descriptions Pin Selectable

General Purpose IO

The GPIOs, located on JP7, can be used for controlling or monitoring OEM functions. External pull-ups are recommended for customization.

NOTE: GPIO 7 is fixed as a switch input and GPIO 8 is fixed as an LED output.

Table 7 General Purpose IO Signal Descriptions

Pin	Signal	Selectable	Pin	Signal	Selectable
1	GPIO_1	Via JP3	2	GPIO_2	Via JP3
3	3.3V		4	GPIO_3	Via JP3
5	GPIO_4	Via JP3	6	GND
7	GPIO_5	Via JP3	8	GPIO_6	Via JP3
9	GPIO_7		10	3.3V
11	GPIO_8		12	GPIO_9
13	GPIO_10		14	GND
15			16	3.3V
17			18	
19			20	

To use the first 6 GPIOs, place a jumper between JP3 and JP4 for the specific GPIO.

Table 8 General Purpose I/O Signal Description

Evaluation	CN210	I/O	Drive High/Low	Description
Daughtercard	GPIO
GPIO
1	2	I/O	6/6 mA	Set as input or output
2	3	I/O	6/6 mA	Set as input or output
3	4	I/O	6/6 mA	Set as input or output
4	5	I/O	6/6 mA	Set as input or output
5	6	I/O	6/6 mA	Set as input or output
6	7	I/O	6/6 mA	Set as input or output
7	48	I or I/O	6/6 mA	Switch input
				1 = off
				0 = switch depressed
8	49	O or I/O	6/6 mA	LED_1
				1= off
				0 = illuminated

SX-550 Evaluation Daughtercard	silex	Page 15
Hardware Configuration
	Part Number 40183-101