
2-46
Registers
Final Rev F
Copyright 1996 by LSI Logic Corporation. All rights reserved.
ASBA
Audio Sync Byte Aligned
5, R/W
This read/write bit, when set by host software, tells the
audio parser that data presented to it may be assumed
to be byte aligned. When cleared, the parser will make
no such assumption, and the MPEG audio sync pattern
will be searched for in a bit serial fashion. Note that this
bit must only be set when using the device to decode
PES bitstreams, program streams, and when using any
parallel modes.
ADMC[1:0]
Audio Dual/Mono Channel Select
[4:3]
The ADMC[1:0] bits select from which channel, left or
right, the dual mono data is output from the audio
decoder. Note that this is only used when the L64005
receives dual mono audio bitstreams. The default at reset
is 002 or stereo mode.
ADS
Audio Decode Status and Start/Stop
2, R/W
When set, ADS indicates that the audio decoder is cur-
rently running. Setting ADS starts the decoder, and clear-
ing ADS stops the decoder. Stopping the decoder causes
the audio decoder to lose sync with the audio bitstream.
ASRS[1:0]
Audio Skip and Repeat Status
[1:0]
When set, ASRS[1:0] commands the audio decoder to
pause or play at normal, fast or slow rates, according to
the following table.
ADMC[1:0] Audio Dual Mono Output Mode
002
stereo: the left channel is output on left speaker,
and the right channel is output on right speaker.
012
left: the left channel is output on both left and right
speakers
102
right: the right channel is output on both left and
right speakers
112
undened
ASRS[1:0]
Skip and Repeat Audio Mode
002
Pause
012
Normal Play
102
11/12 Play Time (Fast)
112
13/12 Play Time (Slow)