LSI Logic Confidential
11-24
Video Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
GOSD
0
Set by microcode to queue up an OSD window using the
most recently stored values in ScaleH, ScaleV, PixFmt
and the OSD Vertical Range, OSD Horizontal Range, and
OSD Data Address registers. Up to two OSD windows
can be outstanding at any time. The GoOSD bit must be
set before the start of the OSD window. Typically, it is set
from the video field or OSD interrupt handler. The
GoOSD bit remains set while there is at least one video
output transfer outstanding to allow software polling for
completion. Clearing this bit is ignored (use the Stop bit
instead).
Содержание DMN-8600
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