Hitachi H8S/2646 Hardware Manual page 1116

*1
P31
*2
Legend
WDDR3
: Write to P3DDR
WDR3
: Write to P3DR
WODR3
: Write to P3ODR
RDR3
: Read P3DR
RPOR3
: Read port 3
RODR3
: Read P3ODR
1084
Notes: *1 Output enable signal
Figure C-3 (b) Port 3 Block Diagram (Pin P31)
Reset
R
Q D
P31DDR
C
WDDR3
Reset
R
Q D
P31DR
C
WDR3
Reset
R
Q D
P31ODR
C
WODR3
RODR3
RDR3
RPOR3
*2 Open drain control signal
SCI module
Serial receive data
enable
Serial receive data
RxD0