NEXCOM NEX 852VL2 User Manual
Page 62
This appendix provides definitions for the four GPI/O pins in the NEX852VL(2). GPI/O (General Purpose
Input/Output) pins are provided for custom system design. The pin programming as input mode (GPI) or
output mode (GPO) is depending on the configuration. The pin definitions are shown in the following table:
Table B-1 : J38 - GPI/O Connector Pin Definition
All digital output have pull-up to +3.3V
BIOS controls the GPI/O Default Function
Bit1~3: Reading the bit returns the digital input corresponding pin. Write is ignored.
0 - Corresponding pin level low
1 - Corresponding pin level high
Bit4~7: The bit corresponds to pin of digital output. Reading the bit returns it’s value that written
before.
0 - Corresponding pin driven to low
1 - Corresponding pin released to high (default)
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