參數(shù)資料
型號(hào): M37560ME-XXXGP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù): 23/65頁(yè)
文件大?。?/td> 955K
代理商: M37560ME-XXXGP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
23
Key Input Interrupt (Key-on Wake Up)
A Key-on wake up interrupt request is generated by applying
L
level voltage to any pin of port P2 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 P2
0
P2
3
.
Fig. 18 Connection example when using key input control register, key input interrupt and port P2 block diagram
P
l
a
o
r
t
h
P
2
0
t
c
P
d
o
i
r
e
t
c
P
t
i
2
0
o
r
n
r
e
g
i
s
t
e
r
=
0
P
l
a
o
r
t
h
P
2
1
t
c
P
d
o
i
r
e
t
c
P
t
i
2
1
o
r
n
r
e
g
i
s
t
e
r
=
0
Port P2
2
latch
Port P2
direction register =
0
P
l
a
o
r
t
h
P
2
3
t
c
P
d
o
i
r
e
t
c
P
t
i
2
3
o
r
n
r
e
g
i
s
t
e
r
=
0
Port P2
4
latch
P
d
o
i
r
e
t
c
P
t
i
2
4
o
r
n
r
e
g
i
s
t
e
r
=
1
Port P2
5
latch
Port P2
5
direction register =
1
Port P2
6
latch
Port P2
6
direction register =
1
P
l
a
o
r
t
h
P
2
7
t
c
P
d
o
i
r
e
t
c
P
t
i
2
7
o
r
n
r
e
g
i
s
t
e
r
=
1
P
2
0
i
n
p
u
t
P
2
1
i
n
p
u
t
P2
2
input
P
2
3
i
n
p
u
t
P2
4
output
P2
5
output
P
2
6
o
u
t
p
u
t
P
2
7
o
u
t
p
u
t
P
U
L
L
r
B
e
i
g
t
i
2
s
t
=
e
r
1
A
Port P2
Input reading circuit
P
L
o
r
t
l
e
P
v
X
e
x
o
l
u
t
p
u
t
P
C
-
M
c
h
O
a
S
n
n
o
e
u
l
t
t
p
r
a
u
n
t
s
b
i
u
s
f
t
f
o
e
r
r
f
o
r
p
u
l
l
-
u
p
Key input interrupt request
Key input control register =
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
K
e
y
i
n
p
u
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
=
1
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