Samsung S5PC110 Manual page 126

S5PC110_UM
GPJ3CON
GPJ3CON[1]
GPJ3CON[0]
2.2.23.2 Port Group GPJ3 Control Register (GPJ3DAT, R/W, Address = 0xE020_02A4)
GPJ3DAT
GPJ3DAT[7:0]
2.2.23.3 Port Group GPJ3 Control Register (GPJ3PUD, R/W, Address = 0xE020_02A8)
GPJ3PUD
GPJ3PUD[n]
Bit
0011 = KP_ROW[3]
0100 = CF_DATA[10]
0101 = MHL_D17
0110 ~ 1110 = Reserved
1111 = GPJ3_INT[2]
[7:4] 0000 = Input
0001 = Output
0010 = MSM_DATA[9]
0011 = KP_ROW[2]
0100 = CF_DATA[9]
0101 = MHL_D16
0110 ~ 1110 = Reserved
1111 = GPJ3_INT[1]
[3:0] 0000 = Input
0001 = Output
0010 = MSM_DATA[8]
0011 = KP_ROW[1]
0100 = CF_DATA[8]
0101 = MHL_D15
0110 ~ 1110 = Reserved
1111 = GPJ3_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
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Description
Initial State
0000
0000
Initial State
0x00
Initial State
0x5555
2-91