D12320VF25V Datasheet, PDF (1108/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix C I/O Port Block Diagrams
C.3 Port 3
*1
P3n
*2
Reset
R
Q
D
P3nDDR
C
WDDR3
Reset
R
Q
D
P3nDR
C
WDR3
Reset
R
Q
D
P3nODR
C
WODR3
RODR3
RDR3
SCI module
Serial transmit enable
Serial transmit data
RPOR3
Legend:
WDDR3: Write to P3DDR
WDR3: Write to P3DR
WODR3: Write to P3ODR
RDR3: Read P3DR
RPOR3: Read port 3
RODR3: Read P3ODR
Notes: n = 0 or 1
1. Output enable signal
2. Open drain control signal
Figure C.3(a) Port 3 Block Diagram (Pins P30 and P31)
Rev.7.00 Feb. 14, 2007 page 1074 of 1108
REJ09B0089-0700