User`s manual

111
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. 8.11.50 Left BorderControl Register 1
Fig. 8.11.51 Left BorderControl Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Left border control register 1 (LB1) [Address 0250
16]
B Name Functions After reset RW
Left Border Control Register 1
0
Control bits of
left border
(LB10 to LB17)
1
R
W
1
to
7
0
Left border position (low-order 8 bits)
T
OSC ✕
(setting value of low-order 3 bits of LB2 ✕16
2
+ setting value of high-order 4 bits of LB1 ✕16
1
+ setting value of low-order 4 bits of LB1 ✕16
0
)
Notes 1: Do not set LB1 = LB2 = “0016.”
2: Set values fit for the following condition:
(LB1 + LB2 ✕ 16
2
) < (RB1 + RB2 ✕ 16
2
).
3: T
OSC is OSD oscillation period.
4: LB2 is left border control register 2.
b7 b6 b5 b4 b3 b2 b1 b0
Left border controlregister 2 (LB2) [Address 0251
16 ]
B Name Functions After reset RW
Left Border Control Register 2
Control bits of
left border
(LB20 to LB22)
0
R
W
0
to
2
0
Left borderposition (high-order 3 bits)
T
OSC ✕
(setting value of low-order 3 bits of LB2 ✕16
2
+ setting value of high-order 4 bits of LB1 ✕16
1
+ setting value of low-order 4 bits of LB1 ✕16
0
)
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are indeterminate.
3
to
7
R
W
Notes 1: Do not set LB1 = LB2 = “00 16 .”
2: Set values fit for the following condition:
(LB1 + LB2 ✕ 16
2
) < (RB1 + RB2 ✕ 16
2
).
3: T
OSC is OSD oscillation period.
4: LB1 is left border control register 1.