3069RF-ZTAT Datasheet, PDF (956/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

C.8 Port 8 Block Diagrams
Hardware
standby
SSOE
Software standby
External bus
released
Reset
R
Q
D
P8 ₀ DDR
C
WP8D
Reset
R
Bus controller
P8₀
Q
D
Self-refresh
P8₀ DR
output enable
C
Mode 7
WP8
RFSH output
enable
RFSH
output
RP8
[Legend]
WP8D: Write to P8DDR
WP8: Write to port 8
RP8: Read port 8
SSOE: Software standby output port enable
Figure C.8 (a) Port 8 Block Diagram (Pin P8₀)
Interrupt
controller
IRQ ₀
input
Rev. 5.0, 09/04, page 934 of 978