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I/O PORTS S3C2410A
9-12
PORT D CONTROL REGISTERS (GPDCON, GPDDAT, and GPDUP)
Register Address R/W Description Reset Value
GPDCON 0x56000030 R/W Configure the pins of port D 0x0
GPDDAT 0x56000034 R/W The data register for port D Undefined
GPDUP 0x56000038 R/W Pull-up disable register for port D 0xF000
Reserved 0x5600003C – Reserved Undefined
GPDCON Bit Description
GPD15 [31:30] 00 = Input 01 = Output
10 = VD23 11 = nSS0
GPD14 [29:28] 00 = Input 01 = Output
10 = VD22 11 = nSS1
GPD13 [27:26] 00 = Input 01 = Output
10 = VD21 11 = Reserved
GPD12 [25:24] 00 = Input 01 = Output
10 = VD20 11 = Reserved
GPD11 [23:22] 00 = Input 01 = Output
10 = VD19 11 = Reserved
GPD10 [21:20] 00 = Input 01 = Output
10 = VD18 11 = Reserved
GPD9 [19:18] 00 = Input 01 = Output
10 = VD17 11 = Reserved
GPD8 [17:16] 00 = Input 01 = Output
10 = VD16 11 = Reserved
GPD7 [15:14] 00 = Input 01 = Output
10 = VD15 11 = Reserved
GPD6 [13:12] 00 = Input 01 = Output
10 = VD14 11 = Reserved
GPD5 [11:10] 00 = Input 01 = Output
10 = VD13 11 = Reserved
GPD4 [9:8] 00 = Input 01 = Output
10 = VD12 11 = Reserved
GPD3 [7:6] 00 = Input 01 = Output
10 = VD11 11 = Reserved
GPD2 [5:4] 00 = Input 01 = Output
10 = VD10 11 = Reserved
GPD1 [3:2] 00 = Input 01 = Output
10 = VD9 11 = Reserved
GPD0 [1:0] 00 = Input 01 = Output
10 = VD8 11 = Reserved