S3C2440A RISC MICROPROCESSOR I/O PORTS
9-13
PORT C CONTROL REGISTERS (GPCCON, GPCDAT, GPCUP) (Continued)
GPCDAT Bit Description
GPC[15:0] [15:0] 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.
GPCUP Bit Description
GPC[15:0] [15:0] 0: The pull up function attached to the corresponding port pin is enabled.
1: The pull up function is disabled.
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