Port 3 Block Diagram - Hitachi H8/3022 Hardware Manual

C.3 Port 3 Block Diagram
P3
n
WP3D: Write to P3DDR
WP3: Write to port 3
RP3: Read port 3
n = 0 to 7
Hardware
standby
Write to external
address
Modes 6 and 7
Modes
1, 3, and 5
Read external
address
Figure C-3 Port 3 Block Diagram
Modes 6 and 7
Q
P3 DDR
n
C
WP3D
Reset
Q
P3
n
C
WP3
RP3
Reset
R
D
R
D
DR
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