F81867
5
4
3
2
1
0
GPIO35_IN
GPIO34_IN
GPIO33_IN
GPIO32_IN
GPIO31_IN
GPIO30_IN
R
R
R
R
R
R
-
-
-
-
-
-
-
-
-
-
-
-
The pin status of DSR3#/GPIO35.
The pin status of RTS3#/GPIO34.
The pin status of DTR3#/GPIO33.
The pin status of CTS3#/GPIO32.
The pin status of RI3#/GPIO31.
The pin status of DCD3#/GPIO30.
GPIO3 Drive Enable Register ⎯ Index C3h
Name R/W Reset Default
Bit
Description
GPIO37 Drive Enable.
0: GPIO37 is open drain.
1: GPIO37 is push pull.
7
GPIO37_DRV_EN R/W LRESET#
GPIO36_DRV_EN R/W LRESET#
0
0
0
0
0
0
0
0
GPIO36 Drive Enable.
0: GPIO36 is open drain.
1: GPIO36 is push pull.
6
5
4
3
2
1
0
GPIO35 Drive Enable.
0: GPIO35 is open drain.
1: GPIO35 is push pull.
GPIO35_DRV_EN
R/w LRESET#
GPIO34 Drive Enable.
0: GPIO34 is open drain.
1: GPIO34 is push pull.
GPIO34_DRV_EN R/W LRESET#
GPIO33_DRV_EN R/W LRESET#
GPIO32_DRV_EN R/W LRESET#
GPIO31_DRV_EN R/W LRESET#
GPIO30_DRV_EN R/W LRESET#
GPIO33 Drive Enable.
0: GPIO33 is open drain.
1: GPIO33 is push pull.
GPIO32 Drive Enable.
0: GPIO32 is open drain.
1: GPIO32 is push pull.
GPIO31 Drive Enable.
0: GPIO31 is open drain.
1: GPIO31 is push pull.
GPIO30 Drive Enable.
0: GPIO30 is open drain.
1: GPIO30 is push pull.
7.7.8
GPIO4x Configuration Registers
Register Name
Register
0x[HEX]
Default Value
MSB
LSB
B0
GPIO4 Output Enable Register
GPIO4 Output Data Register
GPIO4 Pin Status Register
GPIO4 Driver Enable Register
0
0
1
-
0
1
-
0
1
-
0
1
-
0
1
-
0
1
-
0
1
-
B1
B2
B3
1
-
0
0
0
0
0
0
0
0
157
Dec, 2011
V0.12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
