Port 3 Block Diagram - Hitachi H8/3032 Series Hardware Manual

C.3 Port 3 Block Diagram
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Hardware
standby
P3
n
Mode 1
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
Mode 2/3
Q
Write to external
address
Mode 2/3
Q
RP3
534
Reset
R
D
P3 DDR
n
C
WP3D
Reset
R
D
P3 DR
n
C
WP3