User`s manual
150
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37281MAH–XXXSP,M37281MFH–XXXSP
M37281MKH–XXXSP,M37281EKSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
Address 00F616
b7 b6 b5 b4 b3 b2 b1 b0
I
2
C data shift register (S0) [Address 00F616]
B Functions After reset R W
I
2
C Data Shift Register
0
to
7
This is an 8-bit shift register to store
receive data and write transmit data.
Indeterminate
Note: To write data into the I
2
C data shift register after setting the MST bit to
“0” (slave mode), keep an interval of 8 machine cycles or more.
Name
D0 to D7
RW
Address 00F716
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
0
R
e
a
d
/
w
r
i
t
e
b
i
t
(
R
B
W
)
1
t
o
7
Sl
ave a
dd
ress
(SAD0 to SAD6)
<
O
n
l
y
i
n
1
0
-
b
i
t
a
d
d
r
e
s
s
i
n
g
(
i
n
s
l
a
v
e
)
m
o
d
e
>
T
h
e
l
a
s
t
s
i
g
n
i
f
i
c
a
n
t
b
i
t
o
f
a
d
d
r
e
s
s
d
a
t
a
i
s
c
o
m
p
a
r
e
d
.
0
:
W
a
i
t
t
h
e
f
i
r
s
t
b
y
t
e
o
f
s
l
a
v
e
a
d
d
r
e
s
s
a
f
t
e
r
S
T
A
R
T
c
o
n
d
i
t
i
o
n
(
r
e
a
d
s
t
a
t
e
)
1
:
W
a
i
t
t
h
e
f
i
r
s
t
b
y
t
e
o
f
s
l
a
v
e
a
d
d
r
e
s
s
a
f
t
e
r
R
E
S
T
A
R
T
c
o
n
d
i
t
i
o
n
(
w
r
i
t
e
s
t
a
t
e
)
<
I
n
b
ot
h
mo
d
es>
The address data is compared.
I
2
C
A
d
d
r
e
s
s
R
e
g
i
s
t
e
r
I
2
C
a
d
d
r
e
s
s
r
e
g
i
s
t
e
r
(
S
0
D
)
[
A
d
d
r
e
s
s
0
0
F
7
1
6
]
B
N
a
m
e
Function
s
0
0
A
f
t
e
r
r
e
s
e
t
R
W
R —
R
W