HD64F3048F16 Datasheet, PDF (868/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Appendix C I/O Port Block Diagrams
C.4 Port 4 Block Diagram
8-bit bus 16-bit bus
mode mode
Mode 7
Mode
1 to 6
Reset
R
RP4P
Q
D
P4 _n PCR
C
WP4P
Reset
R
Write to external
address
Q
D
P4 _nDDR
C
WP4D
Reset
R
P4 _n
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.4 Port 4 Block Diagram (Pins P4₀ to P4₇)
Rev. 3.00 Sep 27, 2006 page 840 of 872
REJ09B0325-0300