AMBA 3 AHB-Lite Protocol Specification

AMBA? 3 AHB-Lite Protocol

v1.0

Specification

Copyright ? 2001, 2006 ARM Limited. All rights reserved. ARM IHI 0033A

AMBA 3 AHB-Lite Protocol

Specification

Copyright ? 2001, 2006 ARM Limited. All rights reserved.

Release Information

Change history

Date

Issue Confidentiality Change

06 June 2006 A

Non-Confidential First release for v1.0

Proprietary Notice

Words and logos marked with ? or TM are registered trademarks or trademarks of ARM Limited in the EU and other countries, except as otherwise stated below in this proprietary notice. Other brands and names mentioned herein may be the trademarks of their respective owners.

Neither the whole nor any part of the information contained in, or the product described in, this document may be adapted or reproduced in any material form except with the prior written permission of the copyright holder.

The product described in this document is subject to continuous developments and improvements. All particulars of the product and its use contained in this document are given by ARM in good faith. However, all warranties implied or expressed, including but not limited to implied warranties of merchantability, or fitness for purpose, are excluded.

This document is intended only to assist the reader in the use of the product. ARM Limited shall not be liable for any loss or damage arising from the use of any information in this document, or any error or omission in such information, or any incorrect use of the product.

AMBA Specification License

1.Subject to the provisions of Clauses 2 and 3, ARM hereby grants to LICENSEE a perpetual, non-exclusive, nontransferable, royalty free, worldwide licence to use and copy the AMBA Specification for the purpose of developing, having developed, manufacturing, having manufactured, offering to sell, selling, supplying or otherwise distributing products which comply with the AMBA Specification.

2.THE AMBA SPECIFICATION IS PROVIDED "AS IS" WITH NO WARRANTIES EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF SATISFACTORY QUALITY, MERCHANTABILITY, NONINFRINGEMENT OR FITNESS FOR A PARTICULAR PURPOSE.

3. No licence, express, implied or otherwise, is granted to LICENSEE, under the provisions of Clause 1, to use the ARM tradename, or AMBA trademark in connection with the AMBA Specification or any products based thereon. Nothing in Clause 1 shall be construed as authority for LICENSEE to make any representations on behalf of ARM in respect of the AMBA Specification.

ii

Copyright ? 2001, 2006 ARM Limited. All rights reserved.

ARM IHI 0033A

Confidentiality Status

This document is Non-Confidential. The right to use, copy and disclose this document may be subject to license restrictions in accordance with the terms of the agreement entered into by ARM and the party that ARM delivered this document to. Product Status

The information in this document is final, that is for a developed product. Web Address



ARM IHI 0033A

Copyright ? 2001, 2006 ARM Limited. All rights reserved.

iii

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Copyright ? 2001, 2006 ARM Limited. All rights reserved.

ARM IHI 0033A

Contents AMBA 3 AHB-Lite Protocol Specification

Chapter 1 Chapter 2 Chapter 3

ARM IHI 0033A

Preface

About this book ............................................................................................. xii Feedback ..................................................................................................... xvi

Introduction

1.1 About the protocol ....................................................................................... 1-2 1.2 Operation .................................................................................................... 1-5 1.3 Multi-layer AHB-Lite .................................................................................... 1-6

Signal Descriptions

2.1 Global signals ............................................................................................. 2-2 2.2 Master signals ............................................................................................. 2-3 2.3 Slave signals ............................................................................................... 2-5 2.4 Decoder signals .......................................................................................... 2-6 2.5 Multiplexor signals ...................................................................................... 2-7

Transfers

3.1 Basic transfers ............................................................................................ 3-2 3.2 Transfer types ............................................................................................. 3-5 3.3 Locked transfers ......................................................................................... 3-7 3.4 Transfer size ............................................................................................... 3-8 3.5 Burst operation ............................................................................................ 3-9

Copyright ? 2001, 2006 ARM Limited. All rights reserved.

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