![Samsung S3C2451X Скачать руководство пользователя страница 278](http://html.mh-extra.com/html/samsung/s3c2451x/s3c2451x_user-manual_340826278.webp)
Preliminary
I/O PORTS
S3C2451X RISC MICROPROCESSOR
11-22
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 = LCD_PWRDN
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