Hitachi H8S/2678 Series Reference Manual page 326

*
P51
WDDR5: Write to P5DDR
WDR5: Write to P5DR
RPOR5: Read port 5
RDR5: Read P5DR
Note: * Output enable signal
Figure 5.30 Port 5 Block Diagram (b) (Pin P51)
Reset
R
Q D
P51DDR
C
WDDR5
Reset
R
Q D
P51DDR
C
SCI module
WDR5
Serial receive data enable
RDR5
RPOR5
Serial receive data
Interrupt controller
ITS0
IRQ1
309