Samsung S5PC110 Manual page 270

S5PC110_UM
2.2.56.2 Port Group GPH0 Control Register (GPH0DAT, R/W, Address = 0xE020_0C04)
GPH0DAT
GPH0DAT[7:0]
2.2.56.3 Port Group GPH0 Control Register (GPH0PUD, R/W, Address = 0xE020_0C08)
GPH0PUD
GPH0PUD[n] [2n+1:2n]
2.2.56.4 Port Group GPH0 Control Register (GPH0DRV, R/W, Address = 0xE020_0C0C)
GPH0DRV
GPH0DRV[n] [2n+1:2n]
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
00 = Pull-up/down disabled
01 = Pull-down enabled
n=0~7
10 = Pull-up enabled
11 = Reserved
Bit
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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