Samsung S5PC110 Manual page 129

S5PC110_UM
2.2.24.2 Port Group GPJ4 Control Register (GPJ4DAT, R/W, Address = 0xE020_02C4)
GPJ4DAT
GPJ4DAT[4:0]
2.2.24.3 Port Group GPJ4 Control Register (GPJ4PUD, R/W, Address = 0xE020_02C8)
GPJ4PUD
GPJ4PUD[n]
2.2.24.4 Port Group GPJ4 Control Register (GPJ4DRV, R/W, Address = 0xE020_02CC)
GPJ4DRV
GPJ4DRV[n]
2.2.24.5 Port Group GPJ4 Control Register (GPJ4CONPDN, R/W, Address = 0xE020_02D0)
GPJ4CONPDN
GPJ4[n]
2.2.24.6 Port Group GPJ4 Control Register (GPJ4PUDPDN, R/W, Address = 0xE020_02D4)
GPJ4PUDPDN
GPJ4[n]
Bit
[4:0] 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=0~4
10 = Pull-up enabled
11 = Reserved
Bit
[2n+1:2n] 00 = 1x
10 = 2x
n=0~4
01 = 3x
11 = 4x
Bit
[2n+1:2n] 00 = Output 0
01 = Output 1
n=0~4
10 = Input
11 = Previous state
Bit
[2n+1:2n] 00 = Pull-up/ down disabled
01 = Pull-down enabled
n=0~4
10 = Pull-up enabled
11 = Reserved
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Description
Description
Description
Initial State
0x00
Initial State
0x0155
Initial State
0x0000
Initial State
0x00
Initial State
0x00
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