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PRELIMINARY
S3C6400 RISC MICROPROCESSOR
GPIO
10-
11
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 C CONTROL REGISTER
There are five control registers including GPCCON, GPCDAT, GPCPUD, GPCCONSLP and GPCPUDSLP in the
Port C Control Registers.
Register
Address
R/W
Description
Reset Value
GPCCON 0x7F008040
R/W
Port
C
Configuration Register
0x00
GPCDAT
0x7F008044
R/W
Port C Data Register
Undefined
GPCPUD 0x7F008048
R/W
Port
C
Pull-up/down Register
0x00005555
GPCCONSLP
0x7F00804C
R/W
Port C Sleep mode Configuration Register
0x0
GPCPUDSLP
0x7F008050
R/W
Port C Sleep mode Pull-up/down Register
0x0
GPCCON
Bit
Description
Initial State
GPC0
[3:0]
0000 = Input
0001 = Output
0010 = SPI MISO[0]
0011 = reserved
0100 = Reserved
0101 = ADDR_CF[0]
0110 = Reserved
0111 = External Interrupt Group 2[0]
0000
GPC1
[7:4]
0000 = Input
0001 = Output
0010 = SPI CLK[0]
0011 = reserved
0100 = Reserved
0101 = ADDR_CF[1]
0110 = Reserved
0111 = External Interrupt Group 2[1]
0000
GPC2
[11:8]
0000 = Input
0001 = Output
0010 = SPI MOSI[0]
0011 = reserved
0100 = Reserved
0101 = ADDR_CF[2]
0110 = Reserved
0111 = External Interrupt Group 2[2]
0000
GPC3
[15:12]
0000 = Input
0001 = Output
0010 = SPI CSn[0]
0011 = reserved
0100 = Reserved
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 2[3]
0000
GPC4
[19:16]
0000 = Input
0001 = Output
0010 = SPI MISO[1]
0011 = MMC CMD2
0100 = Reserved
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 2[4]
0000
GPC5
[23:20]
0000 = Input
0001 = Output
0010 = SPI CLK[1]
0011 = MMC CLK2
0100 = Reserved
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 2[5]
0000
GPC6
[27:24]
0000 = Input
0001 = Output
0010 = SPI MOSI[1]
0011 = reserved
0100 = Reserved
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 2[6]
0000
GPC7
[31:28]
0000 = Input
0001 = Output
0010 = SPI CSn[1]
0011 = reserved
0100 = Reserved
0101 = Reserved]
0110 = Reserved
0111 = External Interrupt Group 2[7]
0000