LSI Logic Confidential
11-14
Video Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
used in the same output field or frame as a videoRGB
window, and can not be used when SSAV is set.
GoPIP
3
Set by microcode to queue up a video PIP output window
using the most recently stored values in the PIP vertical,
horizontal range, luma and chroma address and
row/column offset registers. Up to two PIP transfers can
be outstanding at any time. The GoPIP bit must be set
before the start of the PIP window, or a partial window
may be output. The GoPIP bit remains set while there is
at least one PIP window outstanding to allow software
polling of completion. Clearing this bit is ignored. PIP
windows can not be used in the same output field or
frame as a videoRGB window.
VidFInt
2
If set, a video field interrupt will be generated at the
beginning of the output vsync. The video field interrupt
will be aligned with the video input beginning of field if
OSync is set, once the video input timing has been stable
for two pairs of odd/even fields or frames.
Gol
1
Set by microcode to queue up a video input stream 1
capture window using the most recently stored values in
the input stream 1 data vertical, horizontal and result
range, destination luma and chroma address and
row/column offset registers. Up to two video capture
commands can be outstanding at any time. The GoI bit
must be set before the start of the capture window, or a
partial window may be captured. Typically it will be set
from the video transfer interrupt handler. The GoI bit
remains set while there is at least one video input stream
1 capture outstanding to allow software polling of
completion. Clearing this bit is ignored.
GoO
0
Set by microcode to queue up a video output transfer
using the most recently stored values in FI, VCD, VCI, TF
and the output data vertical range, output luma address
and output chroma address registers. Up to two video
output transfers can be outstanding at any time. The GoO
bit must be set before the start of the output window.
Typically it will be set from the video field or video transfer
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