HD6413008VF25 Datasheet, PDF (643/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix C I/O Port Block Diagrams
Appendix C I/O Port Block Diagrams
C.1 Port 4 Block Diagram
8-bit bus 16-bit bus
mode
mode
Reset
R
Hardware
standby
RP4P
Q
D
P4 _n PCR
C
WP4P
Reset
R
Write to external address
External bus released
Q
D
P4 _nDDR
C
WP4D
Reset
R
P4n
Q
D
P4_n DR
C
WP4
RP4
Read external
address
Legend:
WP4P: Write to P4PCR
RP4P: Read P4PCR
WP4D: Write to P4DDR
WP4: Write to port 4
RP4: Read port 4
Note: n = 0 to 7
Figure C.1 Port 4 Block Diagram
Rev.4.00 Aug. 20, 2007 Page 597 of 638
REJ09B0395-0400