Manual

Overview

CS4953xx Hardware User’s Manual

Chapter 1

Introduction

1.1 Overview

The CS4953xx is a programmable audio DSP 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 CS4953xx 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 and Flash memory interfaces 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

•DVD Receivers

•Stereo TVs

•Mini Systems

• Shelf Systems

• Digital Speakers

• Car Audio Head Units and Amplifiers

•Set-top Boxes

1.1.1 Chip Features

The CS4953xx includes the following features:

• Various Decoding/processing Standards • Customer Software Security Keys

• 12-channel Serial Audio Inputs • 16-channel PCM Output

• Dual 32-bit Audio DSP with Dual MAC • Dual S/PDIF Transmitters

• Large On-chip X,Y, and Program RAM

• Two Serial Control Ports Using SPI

™

or I

™

Standards

• Supports SDRAM & Flash Memories • Digital Audio Input (DAI) Port for Audio Data Delivery

in I

S or LJ Format

• Parallel Control Using Motorola

Intel

Communication Standards

• GPIO Support for All Common Sub-circuits