HD64F3048VTF8 Datasheet, PDF (880/903 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip

Appendix C I/O Port Block Diagrams
P9 _n
Reset
R
Q
D
P9 _n DDR
C
WP9D
Reset
R
Q
D
P9_n DR
C
WP9
SCI
Input enable
RP9
Legend:
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Note: n = 2 and 3
Figure C.9 (c) Port 9 Block Diagram (Pins P9₂ and P9₃)
Serial receive
data
Rev. 3.00 Sep 27, 2006 page 852 of 872
REJ09B0325-0300