Datasheet

Appendix C I/O Port Block Diagrams
Rev. 4.00 Jun 06, 2006 page 978 of 1004
REJ09B0301-0400
D
R
QD
P51DR
C
Reset
R
Q
P51DDR
C
Reset
WP5D
WP5
SCI0
Input enable
Serial receive
data
P51
RP5
Legend:
WP5D: Write to P5DDR
WP5: Write to port 5
RP5: Read port 5
Internal data bus
Hardware
standby
Figure C.14 Port 5 Block Diagram (Pin P51)