Asus Aaeon PCM-CFS User Manual page 123

GPIO7 Output Data Register – Index 81h (This byte could be also written by base address + 3)
Bit Name R/W
7 GPIO77_VAL R/W
6 GPIO76_VAL R/W
5 GPIO75_VAL R/W
4 GPIO74_VAL R/W
3 GPIO73_VAL R/W
2 GPIO72_VAL R/W
1 GPIO71_VAL R/W
0 GPIO70_VAL R/W
GPIO7 Pin Status Register – Index 82h (This byte could be also read by base address + 3)
Bit Name R/W
7 GPIO77_IN
6 GPIO76_IN
5 GPIO75_IN
4 GPIO74_IN
3 GPIO73_IN
2 GPIO72_IN
1 GPIO71_IN
0 GPIO70_IN
Appendix C – Digital I/O Ports
Reset Default
LRESET# 1
LRESET# 1
LRESET# 1
LRESET# 1
LRESET# 1
LRESET# 1
LRESET# 1
LRESET# 1
Reset Default
R - -
R - -
R - -
R - -
R - -
R - -
R - -
R - -
Description
0: GPIO77 outputs 0 when in output mode
1: GPIO77 outputs 1 when in output mode
0: GPIO76 outputs 0 when in output mode
1: GPIO76 outputs 1 when in output mode
0: GPIO75 outputs 0 when in output mode
1: GPIO75 outputs 1 when in output mode
0: GPIO74 outputs 0 when in output mode
1: GPIO74 outputs 1 when in output mode
0: GPIO73 outputs 0 when in output mode
1: GPIO73 outputs 1 when in output mode
0: GPIO72 outputs 0 when in output mode
1: GPIO72 outputs 1 when in output mode
0: GPIO71 outputs 0 when in output mode
1: GPIO71 outputs 1 when in output mode
0: GPIO70 outputs 0 when in output mode
1: GPIO70 outputs 1 when in output mode
Description
The pin status of GPIO77/STB#
The pin status of GPIO76/AFD#
The pin status of GPIO75/ERR#
The pin status of GPIO74/INIT#
The pin status of GPIO73/SLIN#
The pin status of GPIO72/ACK#
The pin status of GPIO71/BUSY
The pin status of GPIO70/PE/FANCTRL3/PWM_DAC3
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