HD64F3687GHV Datasheet, PDF (200/566 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.9.2 Port Data Register C (PDRC)
PDRC is a general I/O port data register of port C.
Initial
Bit
Bit Name Value R/W Description
7 to 2 


Reserved
1
PC1
0
R/W These bits store output data for port C pins.
0
PC0
0
R/W If PDRC is read while PCRC bits are set to 1, the value
stored in PDRC is read. If PDRC is read while PCRC bits
are cleared to 0, the pin states are read regardless of the
value stored in PDRC.
9.9.3 Pin Functions
The correspondence between the register specification and the port functions is shown below.
PC1/OSC2/CLKOUT pin
Register
Bit Name PMRC1
Setting value 0
CKCSR
PMRC0
0
1
1
0
1
[Legend] x: Don't care.
PCRC
PCRC1
0
1
x
x
x
Pin Function
PC1 input pin
PC1 output pin
Open
CLKOUT output pin
OSC2 oscillation pin
PC0/OSC1 pin
Register CKCSR
Bit Name PMRC0
Setting value 0
1
[Legend] x: Don't care.
PCRC
PCRC0
0
1
x
Pin Function
PC0 input pin
PC0 output pin
OSC1 oscillation pin
Rev. 3.00 Sep. 10, 2007 Page 166 of 528
REJ09B0216-0300