Samsung S5PC110 Manual page 103

S5PC110_UM
GPF2CON
GPF2CON[1]
GPF2CON[0]
2.2.13.2 Port Group GPF2 Control Register (GPF2DAT, R/W, Address = 0xE020_0164)
GPF2DAT
GPF2DAT[7:0]
2.2.13.3 Port Group GPF2 Control Register (GPF2PUD, R/W, Address = 0xE020_0168)
GPF2PUD
GPF2PUD[n]
2.2.13.4 Port Group GPF2 Control Register (GPF2DRV, S/W, Address = 0xE020_016C)
GPF2DRV
GPF2DRV[n]
Bit
[7:4] 0000 = Input
0001 = Output
0010 = LCD_VD[13]
0011 = SYS_VD[13]
0100 = V656_DATA[5]
0101 ~ 1110 = Reserved
1111 = GPF2_INT[1]
[3:0] 0000 = Input
0001 = Output
0010 = LCD_VD[12]
0011 = SYS_VD[12]
0100 = V656_DATA[4]
0101 ~ 1110 = Reserved
1111 = GPF2_INT[0]
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
0000
Initial State
0x00
Initial State
0x5555
Initial State
0x0000
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