Datasheet

Appendix C I/O Port Block Diagrams
Rev. 4.00 Sep 27, 2006 page 1096 of 1130
REJ09B0327-0400
D
R
QD
P45DR
C
Reset
R
Q
P45DDR
C
Reset
WP4D
WP4
Host interface
RESOBF1
(resets HIRQ12)
Timer connection
CSYNCI input
8-bit timer 1
Timer reset input
P45
Hardware standby
RP4
WP4D: Write to P4DDR
WP4: Write to port 4
RP4: Read port 4
Internal data bus
Legend:
Figure C.11 Port 4 Block Diagram (Pin P45)