L64105 LSI Logic Corporation, L64105 Datasheet - Page 206
L64105
Manufacturer Part Number
L64105
Description
Mpeg-2 Audio/video Decoder
Manufacturer
LSI Logic Corporation
Datasheet
1.L64105.pdf
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6-10
Host Registers 143[4:0] store the audio stream ID. This is used in
conjunction with the audio stream select enable (Register 143[7:5]) to
select which audio stream IDs are selected for decoding.
illustrates the options available in selecting audio streams.
Table 6.3
1. In mode 0b001 (MPEG ID selected), the MPEG audio stream is assumed
2. Mode 0b100 is used when only one audio stream ID is in the bitstream.
The Pack Header Enable bits in Register 147
whether pack headers are parsed and written to the Audio PES
Header/System Channel Buffer. The available selections are listed in
Table
headers.
Channel Interface
Audio Stream
Select Enable
0b000
0b001
0b010
0b011
0b100
0b101
0b110–0b111
to be MPEG-1 audio or MPEG-2 audio without extensions. In modes
0b001 through 0b011, the audio stream ID is programmed in bits [4:0] of
Register 143.
The decoder ignores the contents of bits [4:0] in Register 143.
6.4. Note that the 0b01 code lets the host selectively parse the
Audio Stream Select Enable Bits
Description
Always discard (off). No audio data is put in channel.
MPEG ID selected
Linear PCM Stream ID selected
Reserved
All MPEG Audio IDs
Reserved
Always discard (off)
1
2
(page
1
4-36) determine
Table 6.3
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