HD6432633 Datasheet, PDF (1362/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

*1
P33
*2
Reset
R
Q
D
P33DDR
C
WDDR3
Reset
R
Q
D
P33DR
C
WDR3
Reset
R
Q
D
P33ODR
C
WODR3
RODR3
RDR3
SCI module
Serial transmit enable
Serial transmit data
TxD1
RPOR3
IIC1 module
SCL1 output
IIC1 output enable
SCL1 input
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 (d) Port 3 Block Diagram (Pin P33)
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