LSI Logic Confidential
11-12
Video Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
Top/Bottom display bits in the Overlay Control register.
VideoRGB should not change while an output window
(video, OSD or PIP) in the current output field/frame is
active.
VideoPixFmt
[11:9]
When GoO is set in the video control register and
VideoRGB is set, specifies the pixel format of the
associated video window as shown below. When the pixel
format is not YCrCb, then video data is interpreted as a
graphics layer which underlays or overlays the OSD layer
according to the Vover bit. When video is used as a
graphics layer, flicker filtering is disabled. The pixel format
values are shown below.
PYfirst
8
If set and PV is set when GoR is set by software, then
the associated rescale window will output data in
interleaved YCbYCr format, otherwise the rescale window
will output data in CbYCrY format. If set and PV is set
when Go0 is set by software, then the associated output
window will read output data in interleaved YCbYCr for-
mat otherwise the output window will read output data in
CbYCr format. If set and PV is set when GoPIP is set by
software, then the associated PIP window will read output
data in interleaved YCbYCr format otherwise the output
window will read output data in CbYCr format.
Important:
Packed video is not implemented in the first version of
DoMiNo, and this bit is ignored.
Video PixFmt Value
Pixel Format
0
4-bit Indexed Color
1
8-bit Indexed Color
2
16-bit 555, Little Endian
3
16-bit 555, Big Endian
4
16-bit 565, Little Endian
5
16-bit 565, Big Endian
6
32-bit, Little Endian
7
32-bit, Big Endian
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