Datasheet

Appendix C I/O Port Block Diagrams
Rev. 4.00 Jun 06, 2006 page 986 of 1004
REJ09B0301-0400
C.8 Port 8 Block Diagrams
D
R
QD
P80DR
C
Reset
R
Q
P80DDR
C
Reset
HI12E
EXPE
Mode 2, 3
WP8D
WP8
HIF
HA0 input
P80
RP8
Legend:
WP8D: Write to P8DDR
WP8: Write to port 8
RP8: Read port 8
Internal data bus
Hardware
standby
Figure C.23 Port 8 Block Diagram (Pin P80)