Preface

SPRUGK7A – March 2009 – Revised July 2010

Read This First

About This Manual

This guide describes the host port interface (HPI) on the TMS320C6457 digital signal processors (DSPs). The HPI enables an external host processor (host) to directly access the internal or external memory of the DSP using a 16-bit (HPI16) or 32-bit (HPI32) interface.

Notational Conventions

This document uses the following conventions.

•Hexadecimal numbers are shown with the suffix h. For example, the following number is 40 hexadecimal (decimal 64): 40h.

•Registers in this document are shown in figures and described in tables.

–Each register figure shows a rectangle divided into fields that represent the fields of the register. Each field is labeled with its bit name, its beginning and ending bit numbers above, and its read/write properties below. A legend explains the notation used for the properties.

–Reserved bits in a register figure designate a bit that is used for future device expansion.

Related Documentation From Texas Instruments

The following documents describe the C6000™ devices and related support tools. Copies of these documents are available on the Internet at www.ti.com. Tip: Enter the literature number in the search box provided at www.ti.com.

SPRU189 — TMS320C6000 DSP CPU and Instruction Set Reference Guide. Describes the CPU architecture, pipeline, instruction set, and interrupts for the TMS320C6000 digital signal processors (DSPs).

SPRU198 — TMS320C6000 Programmer's Guide. Describes ways to optimize C and assembly code for the TMS320C6000™ DSPs and includes application program examples.

SPRU301 — TMS320C6000 Code Composer Studio Tutorial. Introduces the Code Composer Studio™ integrated development environment and software tools.

SPRU321 — Code Composer Studio Application Programming Interface Reference Guide. Describes the Code Composer Studio™ application programming interface (API), which allows you to program custom plug-ins for Code Composer.

SPRU871 — TMS320C64x+ Megamodule Reference Guide. Describes the TMS320C64x+ digital signal processor (DSP) megamodule. Included is a discussion on the internal direct memory access (IDMA) controller, the interrupt controller, the power-down controller, memory protection, bandwidth management, and the memory and cache.

C6000, TMS320C6000, Code Composer Studio are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

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Preface

SPRUGK7A –March 2009 –Revised July 2010

Copyright © 2009–2010, Texas Instruments Incorporated

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Texas Instruments TMS320C6457 About This Manual, Notational Conventions, Related Documentation From Texas Instruments
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TMS320C6457 specifications

The Texas Instruments TMS320C6457 is a high-performance digital signal processor (DSP) designed for demanding applications in telecommunications, industrial control, and video processing. As part of the TMS320C6000 family, the C6457 combines advanced features with impressive processing capabilities, making it a popular choice among developers looking for efficient and robust solutions.

One of the key features of the TMS320C6457 is its architecture, which is based on the super Harvard architecture. This design separates program and data memory paths, allowing for parallel instruction execution. The C6457 operates at clock speeds of up to 1 GHz, enabling it to deliver peak performance of over 6,000 MIPS (Million Instructions Per Second) and 12,000 MADDs (Multiply-Accumulate operations per second). Such high throughput makes the C6457 suitable for real-time processing applications that require rapid data handling.

The C6457 DSP integrates a rich set of on-chip resources, including up to 1MB of on-chip SRAM, which serves as a fast cache for data and instructions. The device features multiple high-speed interfaces, such as 10/100/1000 Ethernet, Serial RapidIO, and PCI-Express, facilitating seamless connectivity with other devices and systems. Furthermore, the TMS320C6457 supports various communication protocols, allowing it to adapt to a wide range of application scenarios.

In terms of power efficiency, the TMS320C6457 is designed with sophisticated power management features. It includes dynamic voltage and frequency scaling, which adjust power consumption based on workload requirements without compromising performance. This capability is particularly valuable in battery-operated devices or environments where thermal management is critical.

The TMS320C6457 also benefits from extensive software support, including the Texas Instruments DSP/BIOS real-time operating system and Code Composer Studio integrated development environment. Developers can leverage these tools for efficient code development, debugging, and system optimization. Additionally, Texas Instruments provides a range of libraries and algorithms optimized for the C6457, facilitating rapid application development.

Overall, the Texas Instruments TMS320C6457 DSP stands out due to its robust architecture, high processing capabilities, comprehensive connectivity options, and power management features. These attributes make it a versatile solution for a broad spectrum of applications in digital signal processing, where performance and efficiency are paramount. As technology continues to advance, the TMS320C6457 remains a relevant and potent option for developers seeking to push the boundaries of digital signal processing.
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