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PRELIMINARY
S3C6400 RISC MICROPROCESSOR
GPIO
10-
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.
PORT D CONTROL REGISTER
There are five control registers including GPDCON, GPDDAT, GPDPUD, GPDCONSLP and GPDPUDSLP in the
Port D Control Registers.
Register
Address
R/W
Description
Reset Value
GPDCON 0x7F008060
R/W
Port
D
Configuration Register
0x00
GPDDAT
0x7F008064
R/W
Port D Data Register
Undefined
GPDPUD 0x7F008068
R/W
Port
D
Pull-up/down Register
0x00000155
GPDCONSLP
0x7F00806C
R/W
Port D Sleep mode Configuration Register
0x0
GPDPUDSLP
0x7F008070
R/W
Port D Sleep mode Pull-up/down Register
0x0
GPDCON
Bit
Description
Initial State
GPD0
[3:0]
0000 = Input
0001 = Output
0010 = PCM DCLK[0] 0011 = I2S CLK[0]
0100 = AC97 BITCLK 0101 = ADDR_CF[0]
0110 = Reserved
0111 = External Interrupt Group 3[0]
0000
GPD1
[7:4]
0000 = Input
0001 = Output
0010 = PCM EXTCLK[0]
0011 = I2S CDCLK[0]
0100 = AC97 RESETn 0101 = ADDR_CF[1]
0110 = Reserved
0111 = External Interrupt Group 3[1]
0000
GPD2
[11:8]
0000 = Input
0001 = Output
0010 = PCM FSYNC[0] 0011 = I2S LRCLK[0]
0100 = AC97 SYNC
0101 = ADDR_CF[2]
0110 = Reserved
0111 = External Interrupt Group 3[2]
0000
GPD3
[15:12]
0000 = Input
0001 = Output
0010 = PCM SIN[0]
0011 = I2S DI[0]
0100 = AC97 SDI
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 3[3]
0000
GPD4
[19:16]
0000 = Input
0001 = Output
0010 = PCM SOUT[0] 0011 = I2S DO[0]
0100 = AC97 SDO
0101 = Reserved
0110 = Reserved
0111 = External Interrupt Group 3[4]
0000