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TMS320C4x
User’s Guide

1999

Digital Signal Processing Solutions

Printed in U.S.A., May, 1999

SPRU063C

User’s Guide

TMS320C4x

1999

TMS320C4x User's Guide

SPRU063C May 1999

Printed on Recycled Paper

IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service withoutnotice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performanceof its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USINGSEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’SRISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, maskwork right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

Copyright © 1999, Texas Instruments Incorporated

PrefaceRead This First

About This Manual
This user’s guide serves as a reference book for the TMS320C40 and TMS320C44 digital signal processors. Throughout the book, all references to the TMS320C4x apply to both devices, except when otherwise noted.

How to Use This Manual
The following table summarizes the information contained in this user’s guide:
If you are looking for information about:Addressing modes ARAUs Bootloader Bus Structure Turn to these chapters: Chapter 6, Addressing Modes Chapter 2, Architectural Overview Chapter 10, The Bootloader Chapter 2, Architectural Overview

Chapter 9, External Bus Operation
Cache Communication Ports CPU Architecture Chapter 4, Memory and the Instruction Cache Chapter 12, Communication Ports Chapter 2, Architectural Overview Chapter 3, CPURegisters DMA Data Formats Delayed Branches Instruction set Chapter 11, The DMA Coprocessor Chapter 5, Data Formats and Floating-Point Operation Chapter 7, Program Flow Control Chapter 14, Assembly Language Instructions

Style and Symbol Conventions

If you are looking for information about: Interrupts Memory

Turn to these chapters: Chapter 7, Program Flow Control Chapter 2, ArchitecturalOverview Chapter 4, Memory and the Instruction Cache

Peripherals

Chapter 12, Communication Ports Chapter 11, The DMA Coprocessor Chapter 13, Timers

Overview of the ’C4x Program control Pipeline Registers

Chapter 1, Introduction Chapter 7, Program Flow Control Chapter 8, Pipeline Operation Chapter 3, CPU Registers Chapter 12, Communication Ports Chapter 11, The DMA Coprocessor...