Port Group Gpa0 Control Register - Samsung S5PC110 Manual

S5PC110_UM

2.2.2 PORT GROUP GPA0 CONTROL REGISTER

There are six control registers, namely, GPA0CON, GPA0DAT, GPA0PUD, GPA0DRV, GPA0CONPDN and
GPA0PUDPDN in the Port Group GPA0 Control Registers.
2.2.2.1 Port Group GPA0 Control Register (GPA0CON, R/W, Address = 0xE020_0000)
GPA0CON
GPA0CON[7]
GPA0CON[6]
GPA0CON[5]
GPA0CON[4]
GPA0CON[3]
GPA0CON[2]
GPA0CON[1]
GPA0CON[0]
Bit
[31:28] 0000 = Input
0010 = UART_1_RTSn
0011 ~ 1110 = Reserved
1111 = GPA0_INT[7]
[27:24] 0000 = Input
0010 = UART_1_CTSn
0011 ~ 1110 = Reserved
1111 = GPA0_INT[6]
[23:20] 0000 = Input
0010 = UART_1_TXD
0011 ~ 1110 = Reserved
1111 = GPA0_INT[5]
[19:16] 0000 = Input
0010 = UART_1_RXD
0011 ~ 1110 = Reserved
1111 = GPA0_INT[4]
[15:12] 0000 = Input
0010 = UART_0_RTSn
0011 ~ 1110 = Reserved
1111 = GPA0_INT[3]
[11:8] 0000 = Input
0010 = UART_0_CTSn
0011 ~ 1110 = Reserved
1111 = GPA0_INT[2]
[7:4] 0000 = Input
0010 = UART_0_TXD
0011 ~ 1110 = Reserved
1111 = GPA0_INT[1]
[3:0] 0000 = Input
0010 = UART_0_RXD
0011 ~ 1110 = Reserved
1111 = GPA0_INT[0]
Description
0001 = Output
0001 = Output
0001 = Output
0001 = Output
0001 = Output
0001 = Output
0001 = Output
0001 = Output
2 GENERAL PURPOSE INPUT/ OUTPUT
Initial State
0000
0000
0000
0000
0000
0000
0000
0000
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