Samsung S3C2416 User Manual page 259

S3C2416 RISC MICROPROCESSOR
GPKDAT
GPK[15:0]
GPKUDP
GPKUDP15
~
GPKUDP0
Bit
[31:0] When the port is configured as an input port, the corresponding bit is the
pin state. When the port is configured as an 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
[31:30] [CPU:CPD]
~ 00 = pull-up/down disable
[1:0] 01 = pull-down enable
10 = pull-up enable
11 = not-available
Description
Description
I/O PORTS
10-25