F81867 Datasheet, PDF (270/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

GPIO4 Output Data Register ⎯ offset B1h
Bit
Name
R/W Reset Default
Description
0: GPIO47 outputs 0 when in output mode.
7
GPIO47_VAL
R/W LRESET# 1
1: GPIO47 outputs 1 when in output mode.
0: GPIO46 outputs 0 when in output mode.
6
GPIO46_VAL
R/W LRESET# 1
1: GPIO46 outputs 1 when in output mode.
0: GPIO45 outputs 0 when in output mode.
5
GPIO45_VAL
R/W LRESET# 1
1: GPIO45 outputs 1 when in output mode.
0: GPIO44 outputs 0 when in output mode.
4
GPIO44_VAL
R/W LRESET# 1
1: GPIO44 outputs 1 when in output mode.
0: GPIO43 outputs 0 when in output mode.
3
GPIO43_VAL
R/W LRESET# 1
1: GPIO43 outputs 1 when in output mode.
0: GPIO42 outputs 0 when in output mode.
2
GPIO42_VAL
R/W LRESET# 1
1: GPIO42 outputs 1 when in output mode.
0: GPIO41 outputs 0 when in output mode.
1
GPIO41_VAL
R/W LRESET# 1
1: GPIO41 outputs 1 when in output mode.
0: GPIO40 outputs 0 when in output mode.
0
GPIO40_VAL
R/W LRESET# 1
1: GPIO40 outputs 1 when in output mode.
GPIO4 Pin Status Register ⎯ offset B2h
Bit
Name
R/W Reset Default
Description
7
GPIO47_IN
R
-
- The pin status of SIN4/GPIO47.
6
GPIO46_IN
R
-
- The pin status of SOUT4/GPIO46.
5
GPIO45_IN
R
-
- The pin status of DSR4#/GPIO45.
4
GPIO44_IN
R
-
- The pin status of RTS4#/GPIO44.
3
GPIO43_IN
R
-
- The pin status of DTR4#/GPIO43.
2
GPIO42_IN
R
-
- The pin status of CTS4#/GPIO42.
1
GPIO41_IN
R
-
- The pin status of RI4#/GPIO41.
0
GPIO40_IN
R
-
- The pin status of DCD4#/GPIO40.
GPIO4 Drive Enable Register ⎯ offset B3h
Bit
Name
R/W Reset Default
Description
0: GPIO47 is open drain in output mode.
7 GPIO47_DRV_EN R/W LRESET# 0
1: GPIO47 is push pull in output mode.
0: GPIO46 is open drain in output mode.
6 GPIO46_DRV_EN R/W LRESET# 0
1: GPIO46 is push pull in output mode.
0: GPIO45 is open drain in output mode.
5 GPIO45_DRV_EN R/W LRESET# 0
1: GPIO45 is push pull in output mode.
0: GPIO44 is open drain in output mode.
4 GPIO44_DRV_EN R/W LRESET# 0
1: GPIO44 is push pull in output mode.
0: GPIO43 is open drain in output mode.
3 GPIO43_DRV_EN R/W LRESET# 0
1: GPIO43 is push pull in output mode.
0: GPIO42 is open drain in output mode.
2 GPIO42_DRV_EN R/W LRESET# 0
1: GPIO42 is push pull in output mode.
270
F81867
Dec, 2011
V0.12P