Aaeon PCM-QM77 Manual page 165

C o m p a c t B o a r d
GP24_ODA
4
TA
GP23_ODA
3
TA
GP22_ODA
2
TA
GP21_ODA
1
TA
GP20_ODA
0
TA
GPIO2x Input Status Register-Index 22h
Power-on default [7:0]=xxxx_xxxxb
Bit Name
GP27_PST
7
S
GP26_PST
6
S
GP25_PST
5
S
GP24_PST
4
S
GP23_PST
3
S
GP22_PST
2
S
GP21_PST
1
S
GP20_PST
0
S
The following is a sample code for 8 input
.MODEL SMALL
.CODE
Appendix E Digital I/O F-4
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W VSB3V
R/W PWR
RO VSB3V
RO VSB3V
RO VSB3V
RO VSB3V
RO VSB3V
RO VSB3V
RO VSB3V
RO VSB3V
P C M - Q M 7 7
GPIO 24 output data.
GPIO 23 output data.
GPIO 22 output data.
GPIO 21 output data.
GPIO 20 output data.
Description
Read the GPIO27 data on the pin.
Read the GPIO26 data on the pin.
Read the GPIO25 data on the pin.
Read the GPIO24 data on the pin.
Read the GPIO23 data on the pin.
Read the GPIO22 data on the pin.
Read the GPIO21 data on the pin.
Read the GPIO20 data on the pin.