F81867 Datasheet, PDF (155/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

0: GPIO20 outputs 0 when in output mode.
0
GPIO20_VAL R/W 5VSB 1
1: GPIO20 outputs 1 when in output mode.
F81867
GPIO2 Pin Status Register ⎯ Index D2h (This byte could be also read by base address + 8 if
GPIO_DEC_RANGE is set to “1”)
Bit
Name
R/W Reset Default
Description
7
GPIO27_IN
R
-
- The pin status of RSMRST#/GPIO27.
6
GPIO26_IN
R
-
- The pin status of PWOK/GPIO26.
5
GPIO25_IN
R
-
- The pin status of PS_ON#/GPIO25.
4
GPIO24_IN
R
-
- The pin status of S3#/GPIO24.
3
GPIO23_IN
R
-
- The pin status of PWSOUT#/GPIO23.
2
GPIO22_IN
R
-
- The pin status of PWSIN#/GPIO22.
1
GPIO21_IN
R
-
- The pin status of ATXPG_IN#/GPIO21.
0
GPIO20_IN
R
-
- The pin status of ALERT#/GPIO20/SCL/CIRRX#.
GPIO2 Drive Enable Register ⎯ Index D3h
Bit
Name
R/W Reset Default
Description
7 GPIO27_DRV_EN R/W 5VSB
0: GPIO27 is open drain in output mode.
0
1: GPIO27 is push pull in output mode.
6 GPIO26_DRV_EN R/W 5VSB
0: GPIO26 is open drain in output mode.
0
1: GPIO26 is push pull in output mode.
5 GPIO25_DRV_EN R/W 5VSB
0: GPIO25 is open drain in output mode.
0
1: GPIO25 is push pull in output mode.
4 GPIO24_DRV_EN R/W 5VSB
0: GPIO24 is open drain in output mode.
0
1: GPIO24 is push pull in output mode.
3 GPIO23_DRV_EN R/W 5VSB
0: GPIO23 is open drain in output mode.
0
1: GPIO23 is push pull in output mode.
2 GPIO22_DRV_EN R/W 5VSB
0: GPIO22 is open drain in output mode.
0
1: GPIO22 is push pull in output mode.
1 GPIO21_DRV_EN R/W 5VSB
0: GPIO21 is open drain in output mode.
0
1: GPIO21 is push pull in output mode.
0 GPIO20_DRV_EN R/W 5VSB
0: GPIO20 is open drain in output mode.
0
1: GPIO20 is push pull in output mode.
7.7.7
Register
0x[HEX]
C0
C1
C2
C3
GPIO3x Configuration Registers
Register Name
GPIO3 Output Enable Register
GPIO3 Output Data Register
GPIO3 Pin Status Register
GPIO3 Drive Enable Register
MSB
Default Value
LSB
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
155
Dec, 2011
V0.12P