Samsung S3C6400X User Manual page 246

S3C6400 RISC MICROPROCESSOR
PORT J CONTROL REGISTERS
There are five control registers including GPJCON, GPJDAT, and GPJPUD, GPJCONSLP and GPJPUDSLP in
the Port J Control Registers.
Register
GPJCON 0x7F008120
GPJDAT 0x7F008124
GPJPUD 0x7F008128
GPJCONSLP 0x7F00812C
GPJPUDSLP 0x7F008130
GPJCON
GPJ0
GPJ1
GPJ2
GPJ3
GPJ4
GPJ5 [11:10]
GPJ6 [13:12]
GPJ7 [15:14]
GPJ8 [17:16]
GPJ9 [19:18]
GPJ10 [21:20]
GPJ11 [23:22]
Address R/W
R/W
R/W
R/W
R/W
R/W
Bit
[1:0] 00 = Input
10 = LCD VD[16]
[3:2] 00 = Input
10 = LCD VD[17]
[5:4] 00 = Input
10 = LCD VD[18]
[7:6] 00 = Input
10 = LCD VD[19]
[9:8] 00 = Input
10 = LCD VD[20]
00 = Input
10 = LCD VD[21]
00 = Input
10 = LCD VD[22]
00 = Input
10 = LCD VD[23]
00 = Input
10 = LCD HSYNC
00 = Input
10 = LCD VSYNC
00 = Input
10 = LCD VDEN
00 = Input
10 = LCD VCLK
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 J Configuration Register
Port J Data Register
Port J Pull-up/down Register
Port J Sleep mode Configuration Register
Port J 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
GPIO
Reset Value
0x00
Undefined
0x00555555
0x0
0x0
Initial State
00
00
00
00
00
00
00
00
00
00
00
00
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