Samsung S5PC110 Manual page 138

S5PC110_UM
2.2.28.2 Port Group MP0_4 Control Register (MP0_4DAT, R/W, Address = 0xE020_0344)
MP0_4DAT
MP0_4DAT[7:0]
2.2.28.3 Port Group MP0_4 Control Register (MP0_4PUD, R/W, Address = 0xE020_0348)
MP0_4PUD
MP0_4PUD[n]
2.2.28.4 Port Group MP0_4 Control Register (MP0_4DRV, R/W, Address = 0xE020_034C)
MP0_4DRV
MP0_4DRV[n]
2.2.28.5 Port Group MP0_4 Control Register (MP0_4CONPDN, R/W, Address = 0xE020_0350)
MP0_4CONPDN
MP0_4[n]
2.2.28.6 Port Group MP0_4 Control Register (MP0_4PUDPDN, R/W, Address = 0xE020_0354)
MP0_4PUDPDN
MP0_4[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
Bit
[2n+1:2n] 00 = Output 0
01 = Output 1
n=0~7
10 = Input
11 = Previous state
Bit
[2n+1:2n] 00 = Pull-up/ down disabled
01 = Pull-down enabled
n=0~7
10 = Pull-up enabled
11 = Reserved
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Description
Description
Description
Initial State
0x00
Initial State
0x0000
Initial State
0xAAAA
Initial State
0x00
Initial State
0x00
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