Samsung S3C6400X User Manual page 244

S3C6400 RISC MICROPROCESSOR
PORT I CONTROL REGISTERS
There are five control registers including GPICON, GPIDAT, GPIPUD, GPICONSLP ,and GPIPUDSLP in the Port
I Control Registers.
Register
GPICON 0x7F008100
GPIDAT 0x7F008104
GPIPUD 0x7F008108
GPICONSLP 0x7F00810C
GPIPUDSLP 0x7F008110
GPICON
GPI0
GPI1
GPI2
GPI3
GPI4
GPI5 [11:10]
GPI6 [13:12]
GPI7 [15:14]
GPI8 [17:16]
GPI9 [19:18]
GPI10 [21:20]
GPI11 [23:22]
GPI12 [25:24]
GPI13 [27:26]
Address R/W
R/W
R/W
R/W
R/W
R/W
Bit
[1:0] 00 = Input
10 = LCD VD[0]
[3:2] 00 = Input
10 = LCD VD[1]
[5:4] 00 = Input
10 = LCD VD[2]
[7:6] 00 = Input
10 = LCD VD[3]
[9:8] 00 = Input
10 = LCD VD[4]
00 = Input
10 = LCD VD[5]
00 = Input
10 = LCD VD[6]
00 = Input
10 = LCD VD[7]
00 = Input
10 = LCD VD[8]
00 = Input
10 = LCD VD[9]
00 = Input
10 = LCD VD[10]
00 = Input
10 = LCD VD[11]
00 = Input
10 = LCD VD[12]
00 = Input
10 = LCD VD[13]
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Description
Port I Configuration Register
Port I Data Register
Port I Pull-up/down Register
Port I Sleep mode Configuration Register
Port I Sleep mode Pull-up/down Register
Description
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
01 = Output
11 = reserved
GPIO
Reset Value
0x00
Undefined
0x55555555
0x0
0x0
Initial State
00
00
00
00
00
00
00
00
00
00
00
00
00
00
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