AAEON PCM-QM77 - Manual (Page 94)

C o m p a c t B o a r d P C M - Q M 7 7
Dynamic Digital IO Configration
Options summary: (default setting)
Input Digital Port X(GPXX)
Direction Output
Set GPIOx as Input or Output
Hi Digital Port X(GPXX) Levels
Low
Set GPIO output level when used as output pin
Chapter 3 AMI BIOS Setup 3-12