STV9937 Datasheet, PDF (18/49 Pages) STMicroelectronics – 120-MHz On-Screen Display for Monitors including PictureBooSTTM and 4 True Independent Window Displays

Window Specifications
STV9937
3.6.3
Border or Shadow Color
The border or shadow color is separately programmable for each separate OSD window. This value
is selected by bits WSRi, WSGi and WSBi for each of the four OSD windows. The value for each
color is shown in Table 17.
Table 16: Border or Shadow Color
FWR
80h
FAC Default
10h, 15h 0h, 0h,
1Ah, 1Fh 0h, 0h
Bit 7
WSRI
Bit 6
WSGI
Bit 5
WSBI
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Table 17: Bordering and Shadowing Color Selection (WSRGBi)
Value
000
001
010
011
Color
Black (Default)
Blue
Green
Cyan
Value
100
101
110
111
Color
Red
Magenta
Yellow
White
3.6.4
Bordering or Shadowing Size
The size of the bordering or shadowing width is separately programmable for each separate OSD
window. This value is selected by bits BSWWi[2:0] for each of the four OSD windows. The width
size is from 0 to 14 pixels, in steps of 2 pixels each.
Width Size = BSWWi[2:0] x 2 pixels
The size of the bordering or shadowing height is selected by bits BSHWi[3:0] for each of the four
windows. The height size is from 0 to 30 lines, in steps of 2 scan lines each.
Height Size = BSHWi[3:0] x 2 scan lines.
Table 18: Bordering or Shadowing Size
FWR
80h
80h
FAC
0Eh, 13h
18h, 1Dh
0Fh, 14h
19h, 1Eh
Default
0h, 0h,
0h, 0h
0h, 0h,
0h, 0h
Bit 7
Bit 6
Bit 5
BSWWi[2:0]
BSHWi[3:0]
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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