HD643303x Hitachi, HD643303x Datasheet - Page 549

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

C.3 Port 3 Block Diagram
P3
n
WP3D:
WP3:
RP3:
n = 0 to 7
Write to P3DDR
Write to port 3
Read port 3
Read external
address
Figure C-3 Port 3 Block Diagram
Mode 1
Hardware
standby
Mode 2/3
534
Write to external
address
Mode 2/3
RP3
Q
Q
P3
WP3D
P3
WP3
n
C
C
Reset
DDR
n
DR
Reset
R
R
D
D