L64105 LSI Logic Corporation, L64105 Datasheet - Page 352

• Manufacturer Part Number: L64105
• Description: Mpeg-2 Audio/video Decoder
• Manufacturer: LSI Logic Corporation

Figure 10.7 Syntax of the MPEG Data in IEC958 Format
Note: Padding is all zeros until the end of each IEC958 frame.
10-20
Pa
Preamble
Pb
Pc
Pd
The preamble values for the MPEG formatter supported bitstream are
given in
Table 10.4
1. Does not include the preamble.
Audio Decoder Module
Field
Pa
Pb
Pc
Pc
Pc
Pc
Pc
Pc
Pd
11–12
13–15
0–15
0–15
8–10
0–15
Table
Bits
5, 6
0–4
7
MPEG Data Frames
MPEG Formatter Data Burst Preamble Syntax
10.4.
IEC958 Data Burst
Host Pc Info Host programmed into Host Pc Info bits in
Variable
0x4E1F
0xF872
Payload
0b000
Value
0b00
0b00
0x04
0x05
0x06
0x08
0x09
0b0
Content
Sync Word 1
Sync Word 2
MPEG-1 Layer I data
MPEG-1 Layer II or MPEG-2 without extension
MPEG-2 data with extension
MPEG-2 Layer I low sample rate
MPEG-2 Layer II low sample rate
Reserved
Error flag - always set to 0
Register 368
Data-type dependent information
Bitstream number
Length of burst payload in bits (see
(page
4-90)
Padding
All 0s
Table
10.5)
1