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Chapter 2 — Overview and Operation
• LUN 2 & 3 with genlock input on LUN 2 (Channel 3)
Channel 3 LUN 2 in mode 00b
Channel 4 LUN 3 in mode 10b
001A Resume from Slow or Fast Motion: This command is used to restore
normal playback rate after Slow or Fast Motion.
001B Default Resolution Setup: This command is use to select the NTSC or
PAL video standard as output video. Normally, the decoder automatically pars-
es the MPEG stream at start-up to determine the resolution. Set only one bit in
the command field (not 32-bit data) as shown in the following table:
Bit
8
9
10
11
12
13
NOTE: The above command must be used to switch the decoder between NTSC and
PAL video when not using "Stream Auto-detect" mode in the
001D Flush Inline Commands: Commands which are sent as "inline" can be
flushed by sending this command.
0021 Buffer Reset/Pause on Last Frame: Used in the playback sequence to
reset the MPEG buffer pointers before starting download of MPEG data to the
decoder. This can also be used to end playback after all data in the decoder's
buffers are used. When bit 8 of the command is set, the decoder will freeze
frame on the last decoded picture of the MPEG stream.
0023 Stop/Stop with Freeze Frame: Stops video playback.
0023 Stop: Forces the screen to black at stop.
0123 Stop: Freezes frame of last image at stop.
0024 Set Frame Count: This command is sent before an "inlined" decoder
command, such as Stop or Pause, to set the desired frame count. The 32-bits of
data contain the desired frame count.
• Sequence to execute an inlined decoder command on a specific
frame count:
Video Standard / Resolution
NTSC
NTSC
PAL
NTSC
PAL
PAL
command.
MPEG PLAY
DECODER Command (45h)
75
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