Port C; Port Control Register C (Pcrc); Figure 9.7 Port C Pin Configuration - Renesas H8 Series Hardware Manual

Section 9 I/O Ports
9.7

Port C

Port C is a general I/O port also functioning as an external oscillation pin and clock output pin.
Each pin of the port C is shown in figure 9.7. The register setting of CKCSR has priority for
functions of the pins for both uses.
Port C has the following registers.

• Port control register C (PCRC)

• Port data register C (PDRC)
9.7.1 Port Control Register C (PCRC)
PCRC selects inputs/outputs in bit units for pins to be used as general I/O ports of port C.
Bit Bit Name

7 to 2
1 PCRC1
0 PCRC0
Rev. 1.00 Aug. 28, 2006 Page 140 of 400
REJ09B0268-0100
Port C

Figure 9.7 Port C Pin Configuration

Initial
Value R/W Description
 
Reserved
0 W When each of the port C pins, PC1 and PC0, functions as
an general I/O port, setting a PCRC bit to 1 makes the
0 W
corresponding pin an output port, while clearing the bit to
0 makes the pin an input port.
PC1/OSC2/CLKOUT
PC0/OSC1