
21
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6/M8–XXXSP/FP, M37272MA–XXXSP
M37272E8SP/FP, M37272EFSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.3
Fig. 8.3.4 Interrupt Control Register 1
b
7b
6 b
5b
4b
3 b
2b
1b
0
I
n
t
e
r
r
u
p
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
1
(
I
C
O
N
1
)
[
A
d
d
r
e
s
s
0
0
F
E
1
6
]
BN
a
m
eF
u
n
c
t
i
o
n
s
A
f
t
e
r
r
e
s
e
t
RW
I
n
t
e
r
r
u
p
t
C
o
n
t
r
o
l
R
e
g
i
s
t
e
r
1
0
T
i
m
e
r
1
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
T
M
1
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
1
T
i
m
e
r
2
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
T
M
2
E
)
2
T
i
m
e
r
3
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
T
M
3
E
)
3
4
O
S
D
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
O
S
D
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
0
0
0
0
0
RW
RW
RW
RW
RW
R—
N
o
t
h
i
n
g
i
s
a
s
s
i
g
n
e
d
.
T
h
i
s
b
i
t
i
s
a
w
r
i
t
e
d
i
s
a
b
l
e
b
i
t
.
W
h
e
n
t
h
i
s
b
i
t
i
s
r
e
a
d
o
u
t
,
t
h
e
v
a
l
u
e
i
s
“
0
.
”
T
i
m
e
r
4
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
T
M
4
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
V
S
Y
N
C
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
V
S
C
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0RW
I
N
T
3
e
x
t
e
r
n
a
l
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
I
N
3
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0RW
Fig. 8.3.5 Interrupt Control Register 2
b
7b
6 b
5b
4b
3 b
2b
1b
0
I
n
t
e
r
r
u
p
t
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
2
(
I
C
O
N
2
)
[
A
d
d
r
e
s
s
0
0
F
F
1
6
]
BN
a
m
eF
u
n
c
t
i
o
n
s
A
f
t
e
r
r
e
s
e
t
RW
I
n
t
e
r
r
u
p
t
C
o
n
t
r
o
l
R
e
g
i
s
t
e
r
2
0
I
N
T
1
e
x
t
e
r
n
a
l
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
I
N
1
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
1
D
a
t
a
s
l
i
c
e
r
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
D
S
E
)
2
S
e
r
i
a
l
I
/
O
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
S
1
E
)
3
4
I
N
T
2
e
x
t
e
r
n
a
l
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
I
N
2
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0
0
0
0
0
RW
RW
RW
RW
RW
f
(
X
I
N
)
/
4
0
9
6
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
C
K
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
M
u
l
t
i
-
m
a
s
t
e
r
I
2
C
-
B
U
S
i
n
t
e
r
f
a
c
e
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
I
I
C
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0RW
T
i
m
e
r
5
•
6
i
n
t
e
r
r
u
p
t
e
n
a
b
l
e
b
i
t
(
T
M
5
6
E
)
0
:
I
n
t
e
r
r
u
p
t
d
i
s
a
b
l
e
d
1
:
I
n
t
e
r
r
u
p
t
e
n
a
b
l
e
d
0RW
T
i
m
e
r
5
•
6
i
n
t
e
r
r
u
p
t
s
w
i
t
c
h
b
i
t
(
T
M
5
6
C
)
0
:
T
i
m
e
r
5
1
:
T
i
m
e
r
6
0RW
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