VT8601 Apollo ProMedia
Revision 1.3 September 8, 1999
-81
VGA Extended Registers
7HFKQRORJLHV ,QF
:H&
:H&RRQQHFW
QQHFW
SR96 – New Live Video Window Control 0 ....................RW
7
W2 Horizontal Interpolation
0
Interpolation ...........................................default
1
Duplication
6
W1 Vertical Interpolation U and V Components
0
Enable.....................................................default
1
Disable
This bit is effective only if window 1 vertical Y
interpolation is enabled (CR8E[12] = 1)
5
Reserved
........................................ always reads 0
4
656
0
Disable ...................................................default
1Enable
3
W2 Color Space Converter (CSC) Bypass
0
Disable ...................................................default
1Enable
2
Reserved
........................................ always reads 0
1
MC Even / Odd Inverter
0
Disable ...................................................default
1Enable
0
MC Interlace Display
0
Disable ...................................................default
1Enable
SR97 – New Live Video Window Control 1 ....................RW
7
Reserved
........................................ always reads 0
6
Planar Mode X (Horizontal) Y/UV Ratio
0
2x
.....................................................default
14x
5-4
Planar Mode Y (Vertical) Y/UV Ratio
00 2x (Yp420) .............................................default
01 4x (Yp410)
1x 1x (Yp422)
3
Reserved
........................................ always reads 0
2-0
Window Mode .................................... default = 000b
Format
Interpolation
Line Buffers
000 YUV422
H-V
(96+48) x 64
001 Planar
H-V
(96+48) x 64
01x YUV
FIFO H
96 x 64
100 MPEG2 YUV422
H-V
2x(96+48)x64
101 MPEG2 Planar
H-V
2x(96+48)x64
11x YUV422
H-V (V-YUV) 2x(96+48)x64
For 1xx, only one h/w overlay window is supported
SR98 – New Live Video Window Control 2 ................... RW
7-6
Two Live Window Chroma Key Select
00 Chroma key only.................................... default
01 Window 1 & chroma key
10 Window 2 & chroma key
11 (Window 1 | Window 2) & chroma key
5-4
W1 Anti-Flicker Removal
00 Disable................................................... default
01 One field is shifted up 1 line
10 One field is shifted up 2 lines
11 One field is shifted up 3 lines
3
W1 Anti-Flicker Removal Field Selection
0
Odd field is shifted up ........................... default
1
Even field is shifted up
2-1
W2 Anti-Flicker Removal
00 Disable................................................... default
01 One field is shifted up 1 line
10 One field is shifted up 2 lines
11 One field is shifted up 3 lines
0
W2 Anti-Flicker Removal Field Selection
0
Odd field is shifted up ........................... default
1
Even field is shifted up
SR99 – New Live Video Window Control 3 ................... RW
7
Reserved
........................................ always reads 0
6
Capture Addres Swap Enable
0
Disable................................................... default
1Enable
5
Capture Address Swap
0
No swap ................................................. default
1Swap
4-2
W2 HDE Delay Adjust ............................. default = 0
1-0
Reserved
........................................ always reads 0
SR9B-9A – Window 1 UV Video Row Byte Offset ........ RW
15-14 Reserved
........................................ always reads 0
13-0 W1 UV Plane Video Row Byte Offset (the bytes in
a row)
SR9D-9C – Window 2 Y Video Row Byte Offset........... RW
15-14 Reserved
........................................ always reads 0
13-0 W2 Y Plane Video Row Byte Offset (the bytes in a
row)
SR9E – Line Buffer Request Threshold.......................... RW
7
Reserved
........................................ always reads 0
6-0
Line Buffer Request Threshold Level........... def = 0
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