Samsung S3C2416 User Manual page 244

I/O PORTS
GPADAT
Reserved
GPA[27:0]
NOTE: GPA10 is excluded in data output mode.
10-10
Bit
[31:27] Reserved
[26:0] 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.
S3C2416 RISC MICROPROCESSOR
Description