Samsung S5PC110 Manual page 274

S5PC110_UM
GPH2CON
GPH2CON[7]
2.2.58.2 Port Group GPH2 Control Register (GPH2DAT, R/W, Address = 0xE020_0C44)
GPH2DAT
GPH2DAT[7:0]
2.2.58.3 Port Group GPH2 Control Register (GPH2PUD, R/W, Address = 0xE020_0C48)
GPH2PUD
GPH2PUD[n]
2.2.58.4 Port Group GPH2 Control Register (GPH2DRV, R/W, Address = 0xE020_0C4C)
GPH2DRV
GPH2DRV[n]
Bit
1111 = EXT_INT[22]
[31:28] 0000 = Input
0001 = Output
0010 = Reserved
0011 = KP_COL[7]
0011 ~ 1110 = Reserved
1111 = EXT_INT[23]
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
Description
Initial State
0000
Initial State
0x00
Initial State
0x5555
Initial State
0x00
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