Aaeon PCM-QM77 User Manual page 155

GPIO2x Output Control Register-Index 20h
Power-on default [7:0]=0000_0000b
Bit Name
7 GP27_OCTRL
GP26_OCTRL
6
GP25_OCTRL
5
4 GP24_OCTRL
3 GP23_OCTRL
2 GP22_OCTRL
1 GP21_OCTRL
GP20_OCTRL
0
GPIO2x Output Data Register-Index 21h
Power-on default [7:0]=0000_0000b
Bit Name
GP27_ODATA
7
6 GP26_ODATA
5 GP25_ODATA
GP24_ODATA
4
3 GP23_ODATA
Appendix F – Digital I/O Ports
R/W PWR
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W PWR
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
Description
GPIO 27 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 26 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 25 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 24 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 23 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 22 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 21 output control. Set to 1 for
output function. Set to 0 for input
function (default).
GPIO 20 output control. Set to 1 for
output function. Set to 0 for input
function (default).
Description
GPIO 27 output data.
GPIO 26 output data.
GPIO 25 output data.
GPIO 24 output data.
GPIO 23 output data.
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