Product specifications

VT8601A Apollo PLE133
Revision 1.82 October 22, 2001 -82- VGA Extended Registers
Technologies, Inc.
Delivering Value
Delivering ValueDelivering Value
Delivering Value
SRAF-AE – Capture Row Byte Offset .............................RW
15 Reserved .........................................always reads 0
14 Capture Address Initial Control
13-0 Capture Row Byte
SRB1-B0 – Window 1 HSB Control .................................RW
15-10 Brightness
9-5 Sin(Hue) * Saturation * 8 (bit-9 is the sign bit)
4-0 Cos(Hue) * Saturation * 8 (bit-4 is the sign bit)
Hue range is 0-360 degrees (default = 0)
Saturation range is 0-1.875 (default = 1)
SRB3-B2 – Window 2 HSB Control .................................RW
15-10 Brightness
9-5 Sin(Hue) * Saturation * 8 (bit-9 is the sign bit)
4-0 Cos(Hue) * Saturation * 8 (bit-4 is the sign bit)
Hue range is 0-360 degrees (default = 0)
Saturation range is 0-1.875 (default = 1)
SRB6-B4 – Second Display Address Select......................RW
23-20 Reserved .........................................always reads 0
19-0 Second Display Address for Double Buffering
Second display address for double buffering instead
of capture address
SRB7 – Video Sharpness....................................................RW
7-0 Video Sharpness Factor
SRBA-B8 – Second Capture Address Select....................RW
23-20 Reserved .........................................always reads 0
19-0 Second Capture Address for Double Buffering
Second capture address for double buffering instead
of display address
SRBC – Contrast Control..................................................RW
7-4 Window 2 Contrast
3-0 Window 1 Contrast
SRBD – Dual View Mux Control......................................RW
7-3 Reserved ......................................... always reads 0
2-0 CRT / TV View Multiplexing Control
00x Color key 1 determines top window (1=W1)def
010 Video window 1 overlay
011 Video window 2 overlay
10x Window key defines window 1 on top
11x Window key defines window 2 on top
SRBE – Miscellaneous Control Bits.................................RW
7 Planar Capture
0 Off ......................................................default
1 On
6-5 Capture Start Address W/R Control (CR98[19-
0])
0x W/R Y address........................................default
10 W/R U address
11 W/R V address
4 Video Engine Power Saving Mode
0 On ......................................................default
1 On
3 Reserved ......................................... always reads 0
2 Interpolation Bypass
0 Interpolation............................................default
1 Bypass
1 Window 2 HSCB Enable
0 Bypass.....................................................default
1 Enable
0 Window 1 HSCB Enable
0 Bypass.....................................................default
1 Enable
SRCE – Window 2 Live Video Control ...........................RW
7 Reserved ......................................... always reads 0
6 W2 Vertical Interpolation
0 Disable ....................................................default
1 Enable
5 Planar Mode X (Horizontal) Y/UV Ratio
0 2x ......................................................default
1 4x
4-3 Planar Mode Y (Vertical) Y/UV Ratio
00 2x (Yp420)..............................................default
01 4x (Yp410)
1x 1x (Yp422)
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