User's Manual

Table Of Contents
S3C2450X RISC MICROPROCESSOR I/O PORTS
11-29
3.11 PORT L CONTROL REGISTERS (GPLCON, GPLDAT, GPLUDP, GPLSEL)
Register Address R/W Description Reset Value
GPLCON 0x560000f0 R/W Configures the pins of port L 0x0
GPLDAT 0x560000f4 R/W The data register for port L 0x0
GPLUDP 0x560000f8 R/W pull-up/down control register for port L 0x15555555
GPLSEL 0x560000fc R/W Selects the function of port L 0x0
GPLCON Bit Description
Reserved [31:30] Reserved
GPL14 [29:28] 00 = Input 01 = Output
10 = SS1 11 = Reserved
GPL13 [27:26] 00 = Input 01 = Output
10 = SS0 11 = Reserved
GPL12 [25:24] 00 = Input 01 = Output
10 = SPIMISO1 11 = Reserved
GPL11 [23:22] 00 = Input 01 = Output
10 = SPIMOSI1 11 = Reserved
GPL10 [21:20] 00 = Input 01 = Output
10 = SPICLK1 11 = Reserved
GPL9 [19:18] 00 = Input 01 = Output
10 = SD1_CLK 11 = Reserved
GPL8 [17:16] 00 = Input 01 = Output
10 = SD1_CMD 11 = Reserved
GPL7 [15:14] 00 = Input 01 = Output
10 = SD1_DAT7 11 = I2S1_SDO
GPL6 [13:12] 00 = Input 01 = Output
10 = SD1_DAT6 11 = I2S1_SDI
GPL5 [11:10] 00 = Input 01 = Output
10 = SD1_DAT5 11 = I2S1_CDCLK
GPL4 [9:8] 00 = Input 01 = Output
10 = SD1_DAT4 11 = I2S1_SCLK
GPL3 [7:6] 00 = Input 01 = Output
10 = SD1_DAT3 11 = Reserved
GPL2 [5:4] 00 = Input 01 = Output
10 = SD1_DAT2 11 = Reserved
GPL1 [3:2] 00 = Input 01 = Output
10 = SD1_DAT1 11 = Reserved
GPL0 [1:0] 00 = Input 01 = Output
10 = SD1_DAT0 11 = Reserved