H8S2116 Datasheet, PDF (201/842 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series

Section 7 I/O Ports
7.12 Port C
Port C is an 8-bit I/O port. Port C pins also function as the wake-up event inputs, noise cancel
input pins, and TPU input/output pins. Port C has the following registers. PCDDR and PCPIN
have the same address.
• Port C data direction register (PCDDR)
• Port C output data register (PCODR)
• Port C input data register (PCPIN)
• Port C Nch-OD control register (PCNOCR)
• Noise canceller enable register (PCNCE)
• Noise canceller decision control register (PCNCMC)
• Noise cancel cycle setting register (PCNCCS)
7.12.1 Port C Data Direction Register (PCDDR)
The individual bits of PCDDR specify input or output for the pins of port C.
Bit Bit Name Initial Value R/W
7
PC7DDR 0
W
6
PC6DDR 0
W
5
PC5DDR 0
W
4
PC4DDR 0
W
3
PC3DDR 0
W
2
PC2DDR 0
W
1
PC1DDR 0
W
0
PC0DDR 0
W
Description
If port C pins are specified for use as the general
I/O port, the corresponding port C pins are output
ports when the PCDDR bits are set to 1, and input
ports when cleared to 0.
Rev. 1.00 Mar. 02, 2006 Page 161 of 798
REJ09B0255-0100