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