Hitachi H8/329 Series Hardware Manual page 96

P3
n
Figure 5-3. Port 3 Schematic Diagram
Mode 3
RP3P
Mode 3
External
address
write
Mode 3
Mode 1 or 2
87
Reset
R
Q D
P3 PCR
n
C
WP3P
Reset
R
Q D
P3 DDR
n
C
WP3D
Reset
R
Q D
P3 DR
n
C
WP3
RP3
External address
read
WP3P: Write Port 3 PCR
WP3D: Write Port 3 DDR
WP3: Write Port 3
RP3P : Read Port 3 PCR
RP3: Read Port 3
n = 0 to 7