HD64F3028F25 Datasheet, PDF (880/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

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
P80
Q
D
P8₀ DR
C
Mode 6/7
WP8
Bus controller
Self-refresh
output enable
RFSH output
enable
RFSH
output
RP8
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. 2.00, 09/03, page 848 of 890