Hitachi H8S/2646 Hardware Manual page 1124

P50
Legend
WDDR5
WDR5
RDR5
RPOR5
Figure C-5 (b) Port 5 Block Diagram (Pin P50) (H8S/2648, H8S/2648R, H8S/2647)
1092
: Write to P5DDR
: Write to P5DR
: Read P5DR
: Read port 5
Reset
R
Q D
P50DDR
C
WDDR5
Reset
R
Q D
P50DR
C
WDR5
SCI module
Serial receive
data enable
Serial receive
data TxD2
RDR5
RPOR5