Aaeon PCM-QM77 Manuel d'utilisateur Page 167

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Compact Board PCM-QM77
Appendix E Digital I/O F-4
4
GP24_ODA
TA
R/W VSB3V
GPIO 24 output data.
3
GP23_ODA
TA
R/W VSB3V
GPIO 23 output data.
2
GP22_ODA
TA
R/W VSB3V
GPIO 22 output data.
1
GP21_ODA
TA
R/W VSB3V
GPIO 21 output data.
0
GP20_ODA
TA
R/W VSB3V
GPIO 20 output data.
GPIO2x Input Status Register-Index 22h
Power-on default [7:0]=xxxx_xxxxb
Bit Name R/W PWR Description
7
GP27_PST
S
RO VSB3V
Read the GPIO27 data on the pin.
6
GP26_PST
S
RO VSB3V
Read the GPIO26 data on the pin.
5
GP25_PST
S
RO VSB3V
Read the GPIO25 data on the pin.
4
GP24_PST
S
RO VSB3V
Read the GPIO24 data on the pin.
3
GP23_PST
S
RO VSB3V
Read the GPIO23 data on the pin.
2
GP22_PST
S
RO VSB3V
Read the GPIO22 data on the pin.
1
GP21_PST
S
RO VSB3V
Read the GPIO21 data on the pin.
0
GP20_PST
S
RO VSB3V
Read the GPIO20 data on the pin.
The following is a sample code for 8 input
.MODEL SMALL
.CODE
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