HD6433044 Datasheet, PDF (842/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Reset
R
Q
D
P8 _n DDR
Bus controller
C
Mode 7
WP8
Reset
R
CS ₁
CS ₂
CS ₃
output
P8 _n
Q
D
Mode 1 to 6
P8_n DR
C
WP8
WP8D Write to P8DDR
WP8: Write to port 8
RP8: Read port 8
n = 1 to 3
RP8
Interrupt
controller
IRQ ₁
IRQ ₂
IRQ₃ input
Figure C-8 (b) Port 8 Block Diagram (Pins P8₁, P8₂, P8₃)
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