L64105 LSI Logic Corporation, L64105 Datasheet - Page 197

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

6.1 Overview
Chapter 6
Channel Interface
This chapter describes the processing of the system stream through the
Channel Interface. It describes how the preparser operates on the input
stream, demultiplexes the various components, and writes them to the
appropriate buffers in SDRAM. Various methods of handling and
recovering from input stream errors are also discussed.
This chapter consists of the following sections:
The L64105 can process the following types of input streams:
1. Audio/Video PES packets for one program produced by transport
2. MPEG-1 System or MPEG-2 Program streams.
3. Audio/Video Elementary Streams (ES).
The host writes a 2-bit, Stream Select code into Register 7 to configure
the L64105 for the input stream type.
MPEG system syntax governs the transfer of data from the encoder to
the decoder. A system stream typically consists of a number of
elementary streams (for example, video and audio streams) that are
combined (multiplexed) to form a program stream. A program is defined
Section 6.1, “Overview,” page 6-1
Section 6.2, “Interface Signals Operation,” page 6-3
Section 6.3, “Preparser,” page 6-9
Section 6.4, “Channel Buffer Controller,” page 6-27
Section 6.5, “Summary,” page 6-30
decoder devices such as the L64108.
6-1