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S3C2410A I/O PORTS
9-17
PORT G CONTROL REGISTERS (GPGCON, GPGDAT, AND GPGUP)
If GPG [7:0] are used for wakeup signals in Power_OFF mode, the ports must be configured as external interrupt
(set in Interrupt mode).
Register Address R/W Description Reset Value
GPGCON 0x56000060 R/W Configure the pins of port G 0x0
GPGDAT 0x56000064 R/W The data register for port G Undefined
GPGUP 0x56000068 R/W Pull-up disable register for port G 0xF800
Reserved 0x5600006C – Reserved Undefined
GPGCON Bit Description
GPG15 [31:30] 00 = Input 01 = Output
10 = EINT23 11 = nYPON
GPG14 [29:28] 00 = Input 01 = Output
10 = EINT22 11 = YMON
GPG13 [27:26] 00 = Input 01 = Output
10 = EINT21 11 = nXPON
GPG12 [25:24] 00 = Input 01 = Output
10 = EINT20 11 = XMON
GPG11 [23:22] 00 = Input 01 = Output
10 = EINT19 11 = TCLK1
GPG10
(5V Tolerant Input)
[21:20] 00 = Input 01 = Output
10 = EINT18 11 = Reserved
GPG9
(5V Tolerant Input)
[19:18] 00 = Input 01 = Output
10 = EINT17 11 = Reserved
GPG8
(5V Tolerant Input)
[17:16] 00 = Input 01 = Output
10 = EINT16 11 = Reserved
GPG7 [15:14] 00 = Input 01 = Output
10 = EINT15 11 = SPICLK1
GPG6 [13:12] 00 = Input 01 = Output
10 = EINT14 11 = SPIMOSI1
GPG5 [11:10] 00 = Input 01 = Output
10 = EINT13 11 = SPIMISO1
GPG4 [9:8] 00 = Input 01 = Output
10 = EINT12 11 = LCD_PWREN
GPG3 [7:6] 00 = Input 01 = Output
10 = EINT11 11 = nSS1
GPG2 [5:4] 00 = Input 01 = Output
10 = EINT10 11 = nSS0
GPG1 [3:2] 00 = Input 01 = Output
10 = EINT9 11 = Reserved
GPG0 [1:0] 00 = Input 01 = Output
10 = EINT8 11 = Reserved