Introduction - Motorola DSP56009 User Manual

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INTRODUCTION

This manual describes in detail the DSP56009 24-bit Digital Signal Processor (DSP),
its memory, operating modes, and peripheral modules. This manual is intended to be
used with the DSP56000 Family Manual (DSP56KFAMUM/AD) and the DSP56009
Technical Data sheet (DSP56009/D). The family manual describes the Central
Processing Unit (CPU), programming models, and the instruction set. The data sheet
provides electrical specifications, timing, pinouts, and packaging descriptions. These
documents, as well as Motorola's DSP development tools, can be obtained through a
local Motorola Semiconductor Sales Office or authorized distributor.
To receive the latest information, access the Motorola DSP home page located at
http://www.motorola-dsp.com
The DSP56009 is a high-performance audio DSP based on the DSP56000 core
architecture and implemented in the same scalable technology as the DSP56002,
DSP56004, DSP56005, DSP56007, and other 24-bit DSP56000 modular products.
Because of its processing power and large memory capacity, it supports a variety of
digital audio decompression functions, such as Dolby AC-3
Layer 2, and Digital Theater Systems
following on-chip peripherals to support these audio functions:
• External Memory Interface (EMI)— interfaces DRAM, SRAM, and EPROM;
the DRAM interface is specifically designed to provide access to a large,
inexpensive memory space, such as that required by many audio applications
• Serial Host Interface (SHI)—simple communications and control interface
between a host processor and the DSP
• Serial Audio Interface (SAI)—user-programmable interface that provides
support for a wide variety of serial audio formats to support a number of
standard audio devices
• Dedicated General Purpose Input/Output (GPIO) Signals— four additional
individually controlled input or output signals
The DSP56009 has the power and ease-of-programming required for stand-alone,
embedded applications. The versatile, on-board peripherals allow the DSP to be
easily connected to almost any other processor with little or no additional logic. The
low pin-count (80 pins) allows the DSP56009 to be available in a small, inexpensive
package.
MOTOROLA
™
(DTS). The DSP56009 also provides the
DSP56009 User's Manual
Overview
Introduction
®
Surround, MPEG1
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