參數(shù)資料
型號(hào)： M38867H8A-AO1HP
廠商： Mitsubishi Electric Corporation
英文描述： LJT 5C 5#16 PIN RECP
中文描述： 單芯片8位CMOS微機(jī)
文件頁數(shù)： 23/110頁
文件大?。?/td> 1601K
代理商： M38867H8A-AO1HP
23
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Key Input Interrupt (Key-on Wake Up)
A Key input interrupt request is generated by applying “L” level to
any pin of port P3 that have been set to input mode. In other
words, it is generated when AND of input level goes from “1” to
“0”. An example of using a key input interrupt is shown in Figure
18, where an interrupt request is generated by pressing one of the
keys consisted as an active-low key matrix which inputs to ports
P3
0
–P3
3
.
Fig. 18 Connection example when using key input interrupt and port P3 block diagram
6
6
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6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
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P
l
a
o
r
t
h
P
3
0
t
c
d
r
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c
t
P
i
o
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n
r
t
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e
P
g
3
0
i
s
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t
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r
=
“
0
”
P
l
a
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t
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P
3
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t
c
d
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t
P
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1
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r
=
“
0
”
P
l
a
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h
P
3
2
t
c
d
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t
P
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n
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P
g
3
2
i
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t
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r
=
“
0
”
P
l
a
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r
t
h
P
3
3
t
c
d
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c
t
P
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n
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P
g
3
3
i
s
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r
=
“
0
”
P
l
a
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r
t
h
P
3
4
t
c
d
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t
P
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n
r
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4
i
s
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r
=
“
1
”
P
l
a
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r
t
h
P
3
5
t
c
d
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t
P
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n
r
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P
g
3
5
i
s
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t
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r
=
“
1
”
P
l
a
o
r
t
h
P
3
6
t
c
d
r
e
c
t
P
i
o
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n
r
t
r
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P
g
3
6
i
s
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t
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r
=
“
1
”
P
l
a
o
r
t
h
P
3
7
t
c
d
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c
t
P
i
o
o
n
r
t
r
e
P
g
3
7
i
s
i
t
e
r
=
“
1
”
P
3
0
i
n
p
u
t
P
3
1
i
n
p
u
t
P
3
2
i
n
p
u
t
P
3
3
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p
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P
3
4
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=
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“
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1
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