Hitachi H8/329 Series Hardware Manual page 101

P4
n
WP4D: Write Port 4 DDR
WP4: Write Port 4
RP4: Read Port 4
n = 1, 2
Figure 5-5. Port 4 Schematic Diagram (Pins P4
Reset
R
Q D
P4 DDR
n
C
WP4D
Reset
R
Q D
P4 DR
n
C
WP4
RP4
and P4
1
92
IRQ input
0
IRQ input
1
IRQ enable
register
IRQ enable
0
IRQ enable
1
)
2