Samsung S3C6400X User Manual page 251

GPIO
PORT L CONTROL REGISTERS
There are four control registers including GPLCON0, GPLCON1, GPLDAT and GPLPUD, in the Port L Control
Registers.
Register
GPLCON0 0x7F008810
GPLCON1 0x7F008814
GPLDAT 0x7F008818
GPLPUD 0x7F00881C
GPLCON0
GPL0
GPL1
GPL2
GPL3 [15:612
GPL4 [19:16]
GPL5 [23:20]
GPL6 [27:24]
GPL7 [31:28]
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.
30
10-
Address R/W
R/W
R/W
R/W
R/W
Bit
[3:0] 0000 = Input
0010 = Host I/F ADDR[0]
0100 = Reserved
0110 = ADDR_CF[0]
[7:4] 0000 = Input
0010 = Host I/F ADDR[1]
0100 = Reserved
0110 = ADDR_CF[1]
[11:8] 0000 = Input
0010 = Host I/F ADDR[2]
0100 = Reserved
0110 = ADDR_CF[2]
0000 = Input
0010 = Host I/F ADDR[3]
0100 = Reserved
0110 = Reserved
0000 = Input
0010 = Host I/F ADDR[4]
0100 = Reserved
0110 = Reserved
0000 = Input
0010 = Host I/F ADDR[5]
0100 = Reserved
0110 = Reserved
0000 = Input
0010 = Host I/F ADDR[6]
0100 = Reserved
0110 = Reserved
0000 = Input
0010 = Host I/F ADDR[7]
0100 = Reserved
0110 = Reserved
Description
Port L Configuration Register 0
Port L Configuration Register 1
Port L Data Register
Port L Pull-up/down Register
Description
0001 = Output
0011 = Key pad COL[0]
0101 = Reserved
0111 = OTG ULPI DATA[0]
0001 = Output
0011 = Key pad COL[1]
0101 = Reserved
0111 = OTG ULPI DATA[1]
0001 = Output
0011 = Key pad COL[2]
0101 = Reserved
0111 = OTG ULPI DATA[2]
0001 = Output
0011 = Key pad COL[3]
0101 = Reserved
0111 = OTG ULPI DATA[3]
0001 = Output
0011 = Key pad COL[4]
0101 = Reserved
0111 = OTG ULPI DATA[4]
0001 = Output
0011 = Key pad COL[5]
0101 = Reserved
0111 = OTG ULPI DATA[5]
0001 = Output
0011 = Key pad COL[6]
0101 = Reserved
0111 = OTG ULPI DATA[6]
0001 = Output
0011 = Key pad COL[7]
0101 = Reserved
0111 = OTG ULPI DATA[7]
S3C6400 RISC MICROPROCESSOR
Reset Value
0x22222222
0x02222222
Undefined
0x15555555
Initial State
0010
0010
0010
0010
0010
0010
0010
0010