Samsung S3C2440A - Manual (Page 257)

S3C2440A RISC MICROPROCESSOR I/O PORTS
9-11
PORT C CONTROL REGISTERS(GPCCON, GPCDAT, GPCUP)
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 Undef.
GPCUP 0x56000028 R/W pull-up disable register for port C 0x0
Reserved 0x5600002c - - -
GPCCON Bit Description
GPC15 [31:30] 00 = Input 01 = Output
10 = VD[7] 11 = Reserved
GPC14 [29:28] 00 = Input 01 = Output
10 = VD[6] 11 = Reserved
GPC13 [27:26] 00 = Input 01 = Output
10 = VD[5] 11 = Reserved
GPC12 [25:24] 00 = Input 01 = Output
10 = VD[4] 11 = Reserved
GPC11 [23:22] 00 = Input 01 = Output
10 = VD[3] 11 = Reserved
GPC10 [21:20] 00 = Input 01 = Output
10 = VD[2] 11 = Reserved
GPC9 [19:18] 00 = Input 01 = Output
10 = VD[1] 11 = Reserved
GPC8 [17:16] 00 = Input 01 = Output
10 = VD[0] 11 = Reserved
GPC7 [15:14] 00 = Input 01 = Output
10 = LCD_LPCREVB 11 = Reserved
GPC6 [13:12] 00 = Input 01 = Output
10 = LCD_LPCREV 11 = Reserved
GPC5 [11:10] 00 = Input 01 = Output
10 = LCD_LPCOE 11 = Reserved
GPC4 [9:8] 00 = Input 01 = Output
10 = VM 11 = I2SSDI
GPC3 [7:6] 00 = Input 01 = Output
10 = VFRAME 11 = Reserved
GPC2 [5:4] 00 = Input 01 = Output
10 = VLINE 11 = Reserved
GPC1 [3:2] 00 = Input 01 = Output
10 = VCLK 11 = Reserved
GPC0 [1:0] 00 = Input 01 = Output
10 = LEND 11 = Reserved