LSI Logic Confidential
11-10
Video Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
time the transfer completes. If both GoI and echo are set
in a command, the command is removed after both echo
and input capture are completed. This bit can be used by
software to poll for when to load the next command.
Polling is typically used for short transfers
(<10 microseconds) and interrupts are used for longer
transfers.
OQF
20
A read-only bit which is set when there are two
outstanding DMA transfers in the video output command
queue. A transfer is loaded into the queue each time the
GoO bit is set by software. A command is removed from
the queue each time the transfer completes. This bit can
be used by software to poll for when to load the next
command. Polling is typically used for short transfers
(<10 microseconds) and interrupts are used for longer
transfers.
0
19
This bit must be programmed to 0.
CC
18
If set when GoR is set by software, then the associated
rescaling operation will perform color correction on the
rescaled results before storing to memory. Color
correction can only be performed on 4:2:2 data (bit 7 of
the scale(i) instruction) or data which is vertically
interpolated to 4:2:2 data (VCD bit set). If set when GoO
is set by software, then the associated output window will
perform color correction on the output data. Rescaling
and output color correction can not be performed at the
same time. If set when GoI is set by software, then the
associated input window will perform color correction on
the input data.
VidInInt
17
The completion of a stream 1 echo or video capture
window will generate a video completion interrupt (video
input completion interrupt on DoMiNo) if VidInInt is set. If
both GoI and echo are set in a command, the interrupt is
signalled after both echo and input capture are
completed. In DoMiNo, there are separate interrupts for
input and output transfer completion, so VidInInt and
VidOutInt can be set at the same time. This bit should not