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H'D211: Screen Control Register DCNTL: OSD
7
Bit
:
BR
Initial value
:
0
R/W
:
R/W
Background brightness select bits
BUL1 BUL0
0
1
Background color specification
(Background Colors in Text Display Mode)
Bit 7
Bit 6
BR
BG
0
0
1
1
0
1
(Background Colors in Superimposed Mode)
Bit 7
Bit 6
Bit 5
BR
BG
0
0
1
1
0
1
6
5
BG
BB
0
0
R/W
R/W
Description
0
Background Brightness, 10IRE
1
Background Brightness, 30IRE
0
Background Brightness, 50IRE
1
Background Brightness, 70IRE
Bit5
Description
BB
Background color (C.Video Output)
NTSC
0
Black
π
1
7 π /4
0
3 π /2
1
π /2
0
3 π /4
1
0
Same phase
1
White
Background color (C.Video Output)
BB
0
1
0
1
Specification
0
invalid
1
0
1
4
3
2
BLU1
BLU0
CAMP
0
0
0
R/W
R/W
R/W
Background chroma select bit
0
1
Cursor chroma select bit
0
Cursor chroma amplitude: 60 IRE
1
Cursor chroma amplitude: 80 IRE
Character chroma select bit
0
Character chroma amplitude: 60 IRE
1
Character chroma amplitude: 80 IRE
(Initial value)
Background color (R, G, B Outputs)
PAL
Black
Black
±π
Blue
±7 π /4
Green
±3 π /2
Cyan
± π /2
Red
±3 π /4
Magenta
Yellow
±0
White
White
Description
Background color (R, G, B Outputs)
Black
Blue
Green
Cyan
Red
Magenta
Yellow
White
1
0
KAMP
BAMP
0
0
R/W
R/W
Background chroma amplitude: 60 IRE
Background chroma amplitude: 80 IRE
(Initial value)
(Initial value)
(Initial value)
Rev. 1.0, 02/00, page 1075 of 1141
(Initial value)
(Initial value)
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