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S3C2450X RISC MICROPROCESSOR I/O PORTS
11-21
3.7 PORT G CONTROL REGISTERS (GPGCON, GPGDAT, GPGUDP)
If GPG0–GPG7 will be used for wake-up signals from Sleep/Stop/Deep Stop mode, the ports will be set in EINT.
Register Address R/W Description Reset Value
GPGCON 0x56000060 R/W Configures the pins of port G 0x0
GPGDAT 0x56000064 R/W The data register for port G 0x0
GPGUDP 0x56000068 R/W Pull-up/down control register for port G 0x55555555
GPGCON Bit Description
GPG15 [31:30] 00 = Input 01 = Output
10 = EINT[23] 11 = CARD_PWREN
GPG14 [29:28] 00 = Input 01 = Output
10 = EINT[22] 11 = RESET_CF
GPG13* [27:26] 00 = Input 01 = Output
10 = EINT[21] 11 = nREG_CF
GPG12 [25:24] 00 = Input 01 = Output
10 = EINT[20] 11 = nINPACK
GPG11 [23:22] 00 = Input 01 = Output
10 = EINT[19] 11 = nIREQ_CF
GPG10 [21:20] 00 = Input 01 = Output
10 = EINT[18] 11 = CAM_FIELD_A
GPG9 [19:18] 00 = Input 01 = Output
10 = EINT[17] 11 = Reserved
GPG8 [17:16] 00 = Input 01 = Output
10 = EINT[16] 11 = Reserved
GPG7 [15:14] 00 = Input 01 = Output
10 = EINT[15] 11 = Reserved
GPG6 [13:12] 00 = Input 01 = Output
10 = EINT[14] 11 = Reserved
GPG5 [11:10] 00 = Input 01 = Output
10 = EINT[13] 11 = Reserved
GPG4 [9:8] 00 = Input 01 = Output
10 = EINT[12] 11 = Reserved
GPG3 [7:6] 00 = Input 01 = Output
10 = EINT[11] 11 = Reserved
GPG2 [5:4] 00 = Input 01 = Output
10 = EINT[10] 11 = Reserved
GPG1 [3:2] 00 = Input 01 = Output
10 = EINT[9] 11 = Reserved
GPG0 [1:0] 00 = Input 01 = Output
10 = EINT[8] 11 = Reserved