User`s manual
143
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
Addresses 00D016 to 00DF16
b
7
b
6
b
5
b
4
b
3
b
2
b
1b
0
Block control register i (BCi) (i=1 to 16) [Addresses 00D016 to 00DF16]
B
l
o
c
k
C
o
n
t
r
o
l
R
e
g
i
s
t
e
r
i
0
,
1 Display mode
selection bits
(BCi0, BCi1)
I
n
d
e
t
e
r
m
i
n
a
t
e
3
,
4
D
o
t
s
i
z
e
s
e
l
e
c
t
i
o
n
b
i
t
s
(
B
C
i
3
,
B
C
i
4
)
5,
6
Pre-divide ratio
selection bit
(BCi5, BCi6)
7
b1 b0
0 0: Display OFF
0 1: OSD mode
1 0: CC mode
1 1: CDOSD mode
B
N
a
m
e
Function
s
A
f
t
e
r
r
e
s
e
tR
W
R
W
I
n
d
e
t
e
r
m
i
n
a
t
e
R
W
I
n
d
e
t
e
r
m
i
n
a
t
e
R
W
I
n
d
e
t
e
r
m
i
n
a
t
e
R —
Notes 1: Tc is OSD clock cycle divided in pre-divide circuit.
2: H is H
SYNC.
3: This character size is available only in Layer 2. At this time, set layer 1’s
pre-divide ratio = ✕ 2, layer 1’s horizontal dot size = 1Tc.
b
6
b
5
b
4
b
3
P
r
e
-
d
i
v
i
d
e
D
o
t
s
i
z
e
r
a
t
i
o
0
0
1
1
0
0
1
1
0
0
0
0
1
1
0
1
1
1
✕ 1
✕ 2
✕ 3
1Tc ✕ 1/2H
1Tc ✕ 1H
2Tc ✕ 2H
3Tc ✕ 3H
1Tc ✕ 1/2H
1Tc ✕ 1H
2Tc ✕ 2H
3Tc ✕ 3H
1.5Tc ✕ 1/2H (See note 3)
1.5Tc ✕ 1H (See note 3)
1Tc ✕ 1/2H
1Tc ✕ 1H
2Tc ✕ 2H
3Tc ✕ 3H
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is indeterminate.
2B
o
r
d
e
r
c
o
n
t
r
o
l
b
i
t
(
B
C
i
2
)
0
:
B
o
r
d
e
r
O
F
F
1
:
B
o
r
d
e
r
O
N
I
n
d
e
t
e
r
m
i
n
a
t
e
R
W