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