User's Manual

Table Of Contents
I/O PORTS S3C2450X RISC MICROPROCESSOR
11-14
3.3 PORT C CONTROL REGISTERS (GPCCON, GPCDAT, GPCUDP)
Register Address R/W Description Reset Value
GPCCON 0x56000020 R/W Configures the pins of port C 0x0
GPCDAT 0x56000024 R/W The data register for port C 0x0
GPCUDP 0x56000028 R/W Pull-up/down control for port C 0x55555555
Reserved 0x5600002c
GPCCON Bit Description
GPC15 [31:30] 00 = Input 01 = Output
10 = RGB/SYS_VD[7] 11 = Reserved
GPC14 [29:28] 00 = Input 01 = Output
10 = RGB/SYS_VD[6] 11 = Reserved
GPC13 [27:26] 00 = Input 01 = Output
10 = RGB/SYS_VD[5] 11 = Reserved
GPC12 [25:24] 00 = Input 01 = Output
10 = RGB/SYS_VD[4] 11 = Reserved
GPC11 [23:22] 00 = Input 01 = Output
10 = RGB/SYS_VD[3] 11 = Reserved
GPC10 [21:20] 00 = Input 01 = Output
10 = RGB/SYS_VD[2] 11 = Reserved
GPC9 [19:18] 00 = Input 01 = Output
10 = RGB/SYS_VD[1] 11 = Reserved
GPC8 [17:16] 00 = Input 01 = Output
10 = RGB/SYS_VD[0] 11 = Reserved
GPC7 [15:14] 00 = Input 01 = Output
10 = Reserved 11 = Reserved
GPC6 [13:12] 00 = Input 01 = Output
10 = Reserved 11 = Reserved
GPC5 [11:10] 00 = Input 01 = Output
10 = Reserved 11 = Reserved
GPC4 [9:8] 00 = Input 01 = Output
10 = RGB_VDEN/SYS_RS 11 = Reserved
GPC3 [7:6] 00 = Input 01 = Output
10 = RGB_VSYNC/SYS_CS1 11 = Reserved
GPC2 [5:4] 00 = Input 01 = Output
10 = RGB_HSYNC/SYS_CS0 11 = Reserved
GPC1 [3:2] 00 = Input 01 = Output
10 = RGB_VCLK/SYS_WR 11 = Reserved
GPC0 [1:0] 00 = Input 01 = Output
10 = RGB_LEND/SYS_OE 11 = Reserved