Cirrus Logic CS4970x4 - Manual (Page 12)

Introduction to CS4953x4/CS4970x4 System Designer’s Guide
CS4953x4/CS4970x4 System Designer’s Guide
DS810UM6 Copyright 2013 Cirrus Logic, Inc P-1
Preface
P.1 Introduction to CS4953x4/CS4970x4 System Designer’s Guide
This design guide contains development guidelines for customers using the Cirrus Logic CS4953x4/
CS4970x4 DSP chip-set. All information needed to create a DSP application are presented in this
consolidated documentation set. This manual describes a simpler development path than was previously
available from Cirrus Logic or its competitors.
Note: This manual will be updated frequently as enhancements are added to the Cirrus Logic DSP
system design tools documented here.
This new development path described here has the following benefits:
• Provides a methodology/toolset to help customers design, develop, update, and upgrade a product
to achieve shorter design-to-market results than previously available.
• Increased intelligence built into the Cirrus Logic CS4953x4/CS4970x4 DSP allows the DSP to take
on most DSP-related control functionality that had previously been exercised by the system
microcontroller.
• Replaces complex customer-written control code in the system microcontroller with C source code
provided by Cirrus Logic.
• Generates one composite Flash image containing both configuration and DSP codes that customers
use on their systems.
• Allows the customer to choose product features and simplifies the interface between the
microcontroller and the Cirrus Logic DSP.
P.2 Overview of the CS4953x4/CS4970x4 DSP
The CS4953x4/CS4970x4 are programmable audio DSPs that combines a programmable, 32-bit fixed-
point general purpose DSP with dedicated audio peripherals. Its audio-centric interfaces facilitate the
coding of high-precision audio applications and provide a seamless connection to external audio
peripheral ICs.
The CS4953x4/CS4970x4 is a 32-bit RAM-based processor that provides up to 150 MIPS of processing
power and includes all standard codes in ROM. It has been designed with a generous amount of on-chip
program and data RAM, and has all necessary peripherals required to support the latest standards in
consumer entertainment products. In addition, external SDRAM memory interface can be used to expand
the data memory. This device is suitable for a variety of high-performance audio applications. These
include:
• Audio/Video Receivers • Mini Systems
• DVD Receivers • Shelf Systems
• Stereo TVs • Digital Speakers
• Car Audio Head Units and Amplifiers • Set-top Boxes