DMN-8600 DVD Recorder System Processor
4-1
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
LSI Logic Confidential
Chapter 4
Functional Description
This section describes the various modules and capabilities of the DMN-
8600 and contains the following sections.
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•
Section 4.2, “Video Processing”
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Section 4.3, “Audio Processing”
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Section 4.4, “Interfaces and I/O”
•
Section 4.5, “Graphics Accelerator”
4.1
RISC Engine
Two 32-bit SPARC processors perform three classes of functions: system
processing, audio processing, and high-level control flow and
decision-making tasks for video processing. Optionally they can also
perform 2D graphics and host functions.
The SPARC processors have a programmable, scalable architecture that
includes an internal 16 Kbyte instruction cache and an internal
configurable 16 Kbyte data memory/cache. Data memory is used instead
of a data cache when the software needs predictable real-time
performance and overlapped DMA transfers. Each SPARC processor
delivers 150 MIPS of processing power.
4.2
Video Processing
As a highly integrated network media processor engine, the DMN-8600
is designed to implement motion-compensated, block-DCT-based video
compression algorithms. To this end, the DMN-8600 includes a Video
Содержание DMN-8600
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