L64105 LSI Logic Corporation, L64105 Datasheet - Page 260

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

8.2.11 User Data
Table 8.11
1. bslbf = bit stream left bit first; uimsbf = unsigned integer, most significant bit first
8.2.12 Picture Data
8.2.13 Unsupported Syntax
8-18
Parameter
user_data_start_code
(PscB2)
while (nextbits() ! = ‘0000
0000 0000 0000 0000 0001’)
user_data
All User Data Processing
User data is written to the User Data FIFO, which is separate from the
Auxiliary Data FIFO. The Group of Pictures (GOP) User Data Only bit in
Register 239
bit is cleared, user data of all layers is written to the User Data FIFO as
shown in
GOP-layer user data is put into the User FIFO. User data belonging to
others layers is discarded. See also
Operation.”
All layers of syntax including and below picture data, i.e., slice, macro-
block, and block are processed by the decoder to reconstruct the picture.
None of the parameters in picture data are written to the Auxiliary Data
FIFO or the User Data FIFO.
The decoder supports Main Profile @ Main Level. As such, there is no
support for scalable extensions, i.e., sequence scalable extension,
picture temporal scalable extension, and picture spatial scalable
extension. Chroma formats 4:4:4 and 4:2:2 also are not supported.
Video Decoder Module
A[7:0] 8 * n uimsbf
Table
(page
8.11. When this bit is set for each sequence, only the first
32
4-55) controls the user data processing. When this
bslbf
n
y
n
n
Section 8.2.15, “User Data FIFO
A7 A6 A5 A4 A3 A2 A1 A0