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S3C2451X RISC MICROPROCESSOR
PORT B CONTROL REGISTERS (GPBCON, GPBDAT, GPBUDP, GPBSEL)(Continued)
GPBDAT
Reserved
GPBDAT[10:0]
GPBUDP
Reserved
GPBUDP10
~
GPBUDP0
GPBSEL
Reserved
GPB10SEL
GPB9SEL
GPB8SEL
GPB7SEL
GPB6SEL
Bit
[31:11]
Reserved
[10:0]
When the port is configured as input port, the corresponding bit is the pin
state. When the port is configured as output port, the pin state is the same
as the corresponding bit. When the port is configured as functional pin, the
undefined value will be read.
Bit
[31:22]
Reserved
[CPU:CPD]
[21:20]
~
00 : pull-up/down disable
[1:0]
01 : pull-down enable
10 : pull-up enable
11 : not-available
Bit
[31:5]
Reserved
[4]
0 = GPB10
[3]
0 = GPB9
[2]
0 = GPB8
[1]
0 = GPB7
[0]
0 = GPB6
Description
Description
Description
1 = I2SSDO_2
1 = I2SSDO_1
1 = I2CSCL
1 = I2CSDA
1 = RTCK
I/O PORTS
11-13
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