Samsung S5PC110 Manual page 272

S5PC110_UM
2.2.57.2 Port Group GPH1 Control Register (GPH1DAT, R/W, Address = 0xE020_0C24)
GPH1DAT
GPH1DAT[7:0]
2.2.57.3 Port Group GPH1 Control Register (GPH1PUD, R/W, Address = 0xE020_0C28)
GPH1PUD
GPH1PUD[n]
2.2.57.4 Port Group GPH1 Control Register (GPH1DRV, R/W, Address = 0xE020_0C2C)
GPH1DRV
GPH1DRV[n]
Bit
[7:0] When the port is configured as input port, the corresponding
bit is the pin state. When the port is configured as output
port, the pin state is the same as the corresponding bit.
When the port is configured as functional pin, the undefined
value will be read.
Bit
[2n+1:2n] 00 = Pull-up/down disabled
01 = Pull-down enabled
n=0~7
10 = Pull-up enabled
11 = Reserved
Bit
[2n+1:2n] 00 = 1x
10 = 2x
n=0~7
01 = 3x
11 = 4x
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Description
Initial State
0x00
Initial State
0x5555
Initial State
0x0000
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