3069RF-ZTAT Datasheet, PDF (961/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

C.9 Port 9 Block Diagrams
P90
Hardware
standby
Reset
R
Q
D
P9 ₀ DDR
C
WP9D
Reset
R
Q
D
P9₀ DR
C
WP9
RP9
[Legend]
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Figure C.9 (a) Port 9 Block Diagram (Pin P9₀)
SCI
Output
enable
Serial
transmit
data
Guard
time
Rev. 5.0, 09/04, page 939 of 978