User`s manual

25
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
M37281MAH–XXXSP,M37281MFH–XXXSP
M37281MKH–XXXSP,M37281EKSP
Fig. 8.3.6 Interrupt Input Polarity Register
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
I n t e r r u p t i n p u t p o l a r i t y r e g i s t e r ( I P ) [ A d d r e s s 0 2 1 21 6]
B
N
am
e
F
unct
i
on
s
A
f
t e r r e s e
t
R
W
I
n t e r r u p t
I
n p u t
P
o
l
a r
i
t y
R
e g
i
s t e r
0
0 t o 2
N
o t
h
i
n g
i
s a s s
i
g n e
d
.
T
h
e s e
b
i
t s a r e w r
i
t e
d
i
s a
b
l
e
b
i
t s .
W h e n t h e s e b i t s a r e r e a d o u t , t h e v a l u e s a r e “ 0 . ”
R
—
I
N
T
1 p o
l
a r
i
t y s w
i
t c
h
b
i
t
( P O L 1 )
0
0
3
0 :
P
o s
i
t
i
v e p o
l
a r
i
t y
1 : N e g a t i v e p o l a r i t y
4
0 :
P
o s
i
t
i
v e p o
l
a r
i
t y
1 : N e g a t i v e p o l a r i t y
6
I
N
T
2 p o
l
a r
i
t y s w
i
t c
h
b
i
t
( P O L 2 )
I
N
T
3 p o
l
a r
i
t y s w
i
t c
h
b
i
t
( P O L 3 )
R
W
R
W
R
W
0 :
P
o s
i
t
i
v e p o
l
a r
i
t y
1 : N e g a t i v e p o l a r i t y
0
0 :
I
N
T
3
i
n t e r r u p t
1 : A - D c o n v e r s i o n i n t e r r u p t
7
A
-
D
convers
i
on •
INT
3
interrupt source selection
bit (AD/INT3SEL)
R
W
0
5
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 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 . ”
R
—
0