Register Description; Register Map - Samsung S5PC110 Manual

S5PC110_UM

2.2 REGISTER DESCRIPTION

2.2.1 REGISTER MAP

Each Port Group has 2 types of control registers.
One works in normal mode, and the other works in power down mode (STOP, DEEP-STOP, SLEEP mode)
Normal registers (For example, GPA0CON, GPA0DAT, GPA0PUD, and GPA0DRV) are the former, and power
down registers (For example, GPA0CONPDN, and GPA0PUDPDN) are the latter.
If, S5PC110 enter the power down mode, all configurations and Pull-down controls are selected by power down
registers
Register
GPA0CON
GPA0DAT
GPA0PUD
GPA0DRV
GPA0CONPDN
GPA0PUDPDN
GPA1CON
GPA1DAT
GPA1PUD
GPA1DRV
GPA1CONPDN
GPA1PUDPDN
GPBCON
GPBDAT
GPBPUD
GPBDRV
GPBCONPDN
GPBPUDPDN
GPC0CON
GPC0DAT
Address R/W
0xE020_0000 R/W
0xE020_0004 R/W
0xE020_0008 R/W
0xE020_000C R/W
0xE020_0010 R/W
0xE020_0014 R/W
0xE020_0020 R/W
0xE020_0024 R/W
0xE020_0028 R/W
0xE020_002C R/W
0xE020_0030 R/W
0xE020_0034 R/W
0xE020_0040 R/W
0xE020_0044 R/W
0xE020_0048 R/W
0xE020_004C R/W
0xE020_0050 R/W
0xE020_0054 R/W
0xE020_0060 R/W
0xE020_0064 R/W
Description
Port Group GPA0 Configuration Register
Port Group GPA0 Data Register
Port Group GPA0 Pull-up/down Register
Port Group GPA0 Drive Strength Control
Register
Port Group GPA0 Power Down Mode
Configuration Register
Port Group GPA0 Power Down Mode Pull-
up/down Register
Port Group GPA1 Configuration Register
Port Group GPA1 Data Register
Port Group GPA1 Pull-up/down Register
Port Group GPA1 Drive Strength Control
Register
Port Group GPA1 Power Down Mode
Configuration Register
Port Group GPA1 Power Down Mode Pull-
up/down Register
Port Group GPB Configuration Register
Port Group GPB Data Register
Port Group GPB Pull-up/down Register
Port Group GPB Drive Strength Control
Register
Port Group GPB Power Down Mode
Configuration Register
Port Group GPB Power Down Mode Pull-
up/down Register
Port Group GPC0 Configuration Register
Port Group GPC0 Data Register
2 GENERAL PURPOSE INPUT/ OUTPUT
Reset Value
0x00000000
0x00
0x5555
0x0000
0x00
0x00
0x00000000
0x00
0x0055
0x0000
0x00
0x00
0x00000000
0x00
0x5555
0x0000
0x00
0x00
0x00000000
0x00
2-25