Port Group Gpi Control Register - Samsung S5PC110 Manual

S5PC110_UM

2.2.19 PORT GROUP GPI CONTROL REGISTER

There are four control registers, namely, GPICON, GPIPUD and GPIDRV in the Port Group GPI Control
Registers.
This port group is used to only functional port (I2S_0 and PCM_0), not GPIO and EXT_INT.
2.2.19.1 Port Group GPI Control Register (GPICON, R/W, Address = 0xE020_0220)
GPICON
GPICON[6]
GPICON[5]
GPICON[4]
GPICON[3]
GPICON[2]
GPICON[1]
GPICON[0]
2.2.19.2 Port Group GPI Control Register (GPIDAT, R/W, Address = 0xE020_0224)
GPIDAT
GPIDAT[6:0]
2.2.19.3 Port Group GPI Control Register (GPIPUD, R/W, Address = 0xE020_0228)
GPIPUD
GPIPUD[n]
Bit
[27:24] 0010 = I2S_0_SDO[2]
[23:20] 0010 = I2S_0_SDO[1]
[19:16] 0010 = I2S_0_SDO[0]
0011 = PCM_0_SOUT
[15:12] 0010 = I2S_0_SDI
0011 = PCM_0_SIN
[11:8] 0010 = I2S_0_LRCK
0011 = PCM_0_FSYNC
[7:4] 0010 = I2S_0_CDCLK
0011 = PCM_0_EXTCLK
[3:0] 0010 = I2S_0_SCLK
0011 = PCM_0_SCLK
Bit
[31:0] Reserved
Bit
[2n+1:2n] 00 = Pull-up/ down disabled
01 = Pull-down enabled
n=0~6
10 = Pull-up enabled
11 = Reserved
2 GENERAL PURPOSE INPUT/ OUTPUT
Description
Description
Description
Initial State
0010
0010
0010
0010
0010
0010
0010
Initial State
0x00
Initial State
0x1555
2-80