HD6433308 Datasheet, PDF (137/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

DPME Mode 3
Mode 1 or 2
P9 7
Reset
R
Q
D
P97 DDR
C
WP9D
Reset
R
Q
D
P97 DR
C
WP9
RP9
WP9D: Write Port 9 DDR
WP9: Write Port 9
RP9: Read Port 9
Figure 5-25. Port 9 Schematic Diagram (Pin P97)
WAIT input
Dual-port RAM
module
WE input
122