Datasheet

Appendix C I/O Port Block Diagrams
Rev.7.00 Feb. 14, 2007 page 1081 of 1108
REJ09B0089-0700
C.8 Port D
R
PDnPCR
C
QD
Reset
WPCRD
Reset
WDRD
R
C
QD
PDn
RDRD
RPORD
External address
upper write
PDnDR
WDDRD
C
QD
PDnDDR
RPCRD
Mode 7
Modes 4 to 6
External address write
Modes 4 to 6
Mode 7
Reset
R
External address upper read
External address lower read
Internal upper data bus
Internal lower data bus
Legend:
WDDRD: Write to PDDDR
WDRD: Write to PDDR
WPCRD: Write to PDPCR
RDRD: Read PDDR
RPORD: Read port D
RPCRD: Read PDPCR
Note: n = 0 to 7
External address
lower write
Figure C.8 Port D Block Diagram (Pins PD0 to PD7)