HD6433044 Datasheet, PDF (833/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

C.3 Port 3 Block Diagram
Hardware standby
External
bus released
Mode 7
Write to external
address
Reset
R
Q
D
P3 _n DDR
C
WP3D
Reset
R
Mode 7
P3 _n
Q
D
P3 _nDR
Mode
1 to 6
C
WP3
RP3
Read external
address
WP3D: Write to P3DDR
WP3: Write to port 3
RP3: Read port 3
n = 0 to 7
Figure C-3 Port 3 Block Diagram
826