1116
R
P36DDR
C
Q
D
Reset
Internal data bus
WDDR3
Reset
WDR3
R
C
Q
D
P36
RDR3
RODR3
RPOR3
SCI module
Serial receive
data enable
Serial receive data
RxD4
P36DR
Reset
WODR3
R
C
Q
D
P36ODR
*
1
*
2
Notes: 1. Output enable signal
2. Open drain control signal
Legend
WDDR3
WDR3
WODR3
RDR3
RPOR3
RODR3
: Write to P3DDR
: Write to P3DR
: Write to P3ODR
: Read P3DR
: Read port 3
: Read P3ODR
Figure C-2 (g) Port 3 Block Diagram (Pin P36)