HD6433044 Datasheet, PDF (837/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Mode 7
Reset
R
Q
D
P6₁ DDR
C
WP6D
Reset
R
Bus
controller
Bus release
enable
P6 ₁
Q
D
P6₁ DR
C
WP6
RP6
WP6D: Write to P6DDR
WP6: Write to port 6
RP6: Read port 6
Figure C-6 (b) Port 6 Block Diagram (Pin P6₁)
BREQ input
830