VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-104
VGA Extended Registers
7HFKQRORJLHV ,QF
:H&
:H&RRQQHFW
QQHFW
CRB1-B0 – Capture Horizontal Minify Factor ..............RW
15
Reserved
........................................ always reads 0
14-10 Planar Capture FIFO Level (for both U and V)
9-0
Capture Horizontal Minify Factor
CRB3-B2 – Capture Vertical Minify Factor...................RW
15
Reserved
........................................ always reads 0
14-10 Planar Capture FIFO Threshold (for both U & V)
9-0
Capture Vertical Minify Factor
CRB5-B4 – DST Pixel Width Count................................RW
15-12 Reserved
........................................ always reads 0
11-0 DST Pixel Width Count
CRB7-B6 – DST Pixel Height Count ...............................RW
15-11 Reserved
........................................ always reads 0
10-0 DST Pixel Height Count
CRB8 – Capture FIFO Control 1 ....................................RW
7-6
Capture FIFO Page Break
00 8 level.....................................................default
01 16 level
1x 32 level
5
Interlace Double Buffering
0
Disable ...................................................default
1Enable
4-0
Capture FIFO Level Control
0
Targa Mode ............................................default
1
XPCV Mode
CRB9 – Capture FIFO Control 2 ....................................RW
7
ENNENZOOM
6
Planar 422 Display
0
Disable ...................................................default
1Enable
5
Planar Mode Window Indicator
Indicate which window is in planar mode
4-0
Capture FIFO Request Threshold Control
0
Targa Mode ............................................default
1
XPCV Mode
CRBB-BA – Chromakey Comp Data 0 Low .................. RW
15-0 Chromakey Compare Data 0 (Lower Threshold
CRBD-BC – Chromakey Comp Data 0 High ................. RW
15-0 Chromakey Compare Data 0 (Higher Threshold
CRBE – Capture Control ................................................ RW
7-6
Reserved
........................................ always reads 0
5
Video WBUF Status ............................................ RO
0
Empty .................................................... default
1
Not empty
4
Second Aperture Direct Access (bypass video
capture)
3
Interpolation Control
2
Video Engine Clock Enable
0
Off
.................................................... default
1On
1
Flicker-Free Function
0
Disable................................................... default
1
Flicker-free when input is in interlace mode
0
Reserved
........................................ always reads 0
CRBF – Display Engine Flags 4 ...................................... RW
7
Video Line Buffer Read Reset Select ...... default = 0
6-4
Window 2 Video Data Format
000 YUV 422 ............................................... default
001 -reserved-
010 RGB 16
011 -reserved-
1xx -reserved-
3
Interpolation Bypass 1 ............................ default = 0
2-0
Window 1 Video Data Format
000 YUV 422 ............................................... default
001 -reserved-
010 RGB 16
011 -reserved-
1xx -reserved-
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
