Datasheet

Section 9 I/O Ports
Rev.6.00 Mar. 18, 2009 Page 378 of 980
REJ09B0050-0600
9.10.2 Port C Data Register (PCDR)
PCDR stores output data for the port C pins.
Bit Bit Name Initial Value R/W Description
7 PC7DR 0 R/W
6 PC6DR 0 R/W
5 PC5DR 0 R/W
4 PC4DR 0 R/W
Output data for a pin is stored when the pin function
is specified to a general purpose I/O.
3 PC3DR 0 R/W
2 PC2DR 0 R/W
1 PC1DR 0 R/W
0 PC0DR 0 R/W
9.10.3 Port C Register (PORTC)
PORTC is shows port C pin states.
PORTC cannot be modified.
Bit Bit Name Initial Value R/W Description
7 PC7 —
*
R
6 PC6 —
*
R
5 PC5 —
*
R
4 PC4 —
*
R
If a port C read is performed while PCDDR bits are
set to 1, the PCDR values are read. If a port C read
is performed while PCDDR bits are cleared to 0, the
pin states are read.
3 PC3 —
*
R
2 PC2 —
*
R
1 PC1 —
*
R
0 PC0 —
*
R
Note: * Determined by the states of pins PC7 to PC0.