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C o m p a c t B o a r d
GPIO2x Output Control Register-Index 20h
Power-on default [7:0]=0000_0000b
Bit
Name
GP27_OCT
7
RL
GP26_OCT
6
RL
GP25_OCT
5
RL
GP24_OCT
4
RL
GP23_OCT
3
RL
GP22_OCT
2
RL
GP21_OCT
1
RL
GP20_OCT
0
RL
GPIO2x Output Data Register-Index 21h
Power-on default [7:0]=0000_0000b
Bit
Name
GP27_ODA
7
TA
GP26_ODA
6
TA
GP25_ODA
5
TA
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
P C M - Q M 7 7
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.
Appendix E Digital I/O F-3
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