VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-82
VGA Extended Registers
7HFKQRORJLHV ,QF
:H&
:H&RRQQHFW
QQHFW
SR9F – VBI Control .........................................................RW
7
VBI Interrupt Status............................................RO
6
Reserved
........................................ always reads 0
5
VBI Bit-8
4
VBI IV Bit-8
3
VBI Interrupt
0
Disable ...................................................default
1Enable
2VBI Enable
0
Disable ...................................................default
1Enable
1-0
VBI Data Format in Frame Buffer
00 Every field data overwrite ......................default
01 Data in even/odd format
10 Every two field data write contiguous
11 -reserved-
SRA3-A0 - VBI Frame Buffer Address ...........................RW
31-20 VBI Row Byte Offset
19-0 VBI Start Address
SRA7-A4 – VBI Capture Start.........................................RW
31-27 Reserved
........................................ always reads 0
26-16 VBI Vertical Start
15-11 Reserved
........................................ always reads 0
10-0 VBI Horizontal Start
SRAB-A8 – VBI Capture End..........................................RW
31-27 Reserved
........................................ always reads 0
26-16 VBI Vertical End
15-11 Reserved
........................................ always reads 0
10-0 VBI Horizontal End
SRAD-AC – VBI Vertical Interrupt Position................. RW
15
Reserved
........................................ always reads 0
14-12 Dithering Mode
000 Bypass dithering .................................... default
001 -reserved-
010 24 bpp dither to 16 bpp
011 24 bpp chop to 16 bpp
100 24 bpp dither to 15 bpp
101 24 bpp chop to 15 bpp
110 24 bpp dither to RGB8
111 24 bpp chop to RGB8
11
Capture CSC
0
Disable................................................... default
1Enable
10-0 VINST[10-0]
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
