H8S2633 Datasheet, PDF (1394/1487 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Appendix C I/O Port Block Diagrams
*1
P31
*2
Reset
R
Q
D
P31DDR
C
WDDR3
Reset
R
Q
D
P31DR
C
WDR3
Reset
R
Q
D
P31ODR
C
WODR3
RODR3
RDR3
SCI module
Serial receive data
enable
RPOR3
Serial receive data
RxD0/IrRxD
Legend:
WDDR3: Write to P3DDR
WDR3: Write to P3DR
WODR3: Write to P3ODR
RDR3: Read P3DR
RPOR3: Read port 3
RODR3: Read P3ODR
Notes: 1. Output enable signal
2. Open drain control signal
Figure C.2 (b) Port 3 Block Diagram (Pin P31)
Rev. 5.00 Mar 28, 2005 page 1332 of 1422
REJ09B0234-0500