D12320VF25IV Datasheet, PDF (1260/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix C I/O Port Block Diagrams
*1
P3_n
*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 clock output
enable
Serial clock output
Serial clock input
enable
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 = 4 or 5
1. Output enable signal
2. Open drain control signal
Serial clock
input
Figure C.3 (c) Port 3 Block Diagram (Pins P3₄ and P3₅)
Rev.6.00 Sep. 27, 2007 Page 1228 of 1268
REJ09B0220-0600