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AMBA AXI and ACE协议
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AMBA 总线详解
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Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved.
ARM IHI 0033B.b (ID102715)
ARM
®
AMBA
®
5 AHB Protocol
Specification
AHB5, AHB-Lite
ii Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved. ARM IHI 0033B.b
Non-Confidential ID102715
ARM AMBA 5 AHB Protocol Specification
AHB5, AHB-Lite
Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved.
Release Information
Proprietary Notice
This document is NON-CONFIDENTIAL and any use by you is subject to the terms of this notice and the ARM AMBA
Specification Licence set about below.
This document is protected by copyright and other related rights and the practice or implementation of the information contained
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Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved.
ARM Limited. Company 02557590 registered in England.
110 Fulbourn Road, Cambridge, England CB1 9NJ.
In this document, where the term ARM is used to refer to the company it means “ARM or any of its subsidiaries as appropriate”.
Change history
Date Issue Confidentiality Change
06 June 2006 A Non-Confidential First release for v1.0
25 June 2015 B.a Confidential Update for AMBA 5 AHB Protocol Specification
30 October 2015 B.b Non-Confidential Confidential to Non-Confidential Release
ARM IHI 0033B.b Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved. iii
ID102715 Non-Confidential
ARM AMBA SPECIFICATION LICENCE
THIS END USER LICENCE AGREEMENT (“LICENCE”) IS A LEGAL AGREEMENT BETWEEN YOU (EITHER A
SINGLE INDIVIDUAL, OR SINGLE LEGAL ENTITY) AND ARM LIMITED (“ARM”) FOR THE USE OF THE RELEVANT
AMBA SPECIFICATION ACCOMPANYING THIS LICENCE. ARM IS ONLY WILLING TO LICENSE THE RELEVANT
AMBA SPECIFICATION TO YOU ON CONDITION THAT YOU ACCEPT ALL OF THE TERMS IN THIS LICENCE. BY
CLICKING “I AGREE” OR OTHERWISE USING OR COPYING THE RELEVANT AMBA SPECIFICATION YOU
INDICATE THAT YOU AGREE TO BE BOUND BY ALL THE TERMS OF THIS LICENCE. IF YOU DO NOT AGREE TO
THE TERMS OF THIS LICENCE, ARM IS UNWILLING TO LICENSE THE RELEVANT AMBA SPECIFICATION TO YOU
AND YOU MAY NOT USE OR COPY THE RELEVANT AMBA SPECIFICATION AND YOU SHOULD PROMPTLY
RETURN THE RELEVANT AMBA SPECIFICATION TO ARM.
“LICENSEE” means You and your Subsidiaries.
“Subsidiary” means, if You are a single entity, any company the majority of whose voting shares is now or hereafter owned or
controlled, directly or indirectly, by You. A company shall be a Subsidiary only for the period during which such control exists.
1. Subject to the provisions of Clauses 2, 3 and 4, ARM hereby grants to LICENSEE a perpetual, non-exclusive, non-transferable,
royalty free, worldwide licence to:
(i) use and copy the relevant AMBA Specification for the purpose of developing and having developed products that comply with
the relevant AMBA Specification;
(ii) manufacture and have manufactured products which either: (a) have been created by or for LICENSEE under the licence
granted in Clause 1(i); or (b) incorporate a product(s) which has been created by a third party(s) under a licence granted by ARM
in Clause 1(i) of such third party’s ARM AMBA Specification Licence; and
(iii) offer to sell, sell, supply or otherwise distribute products which have either been (a) created by or for LICENSEE under the
licence granted in Clause 1(i); or (b) manufactured by or for LICENSEE under the licence granted in Clause 1(ii).
2. LICENSEE hereby agrees that the licence granted in Clause 1 is subject to the following restrictions:
(i) where a product created under Clause 1(i) is an integrated circuit which includes a CPU then either: (a) such CPU shall only
be manufactured under licence from ARM; or (b) such CPU is neither substantially compliant with nor marketed as being
compliant with the ARM instruction sets licensed by ARM from time to time;
(ii) the licences granted in Clause 1(iii) shall not extend to any portion or function of a product that is not itself compliant with
part of the relevant AMBA Specification; and
(iii) no right is granted to LICENSEE to sublicense the rights granted to LICENSEE under this Agreement.
3. Except as specifically licensed in accordance with Clause 1, LICENSEE acquires no right, title or interest in any ARM
technology or any intellectual property embodied therein. In no event shall the licences granted in accordance with Clause 1 be
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the relevant AMBA Specification.
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EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF SATISFACTORY
QUALITY, MERCHANTABILITY, NON-INFRINGEMENT OR FITNESS FOR A PARTICULAR PURPOSE, OR THAT ANY
USE OR IMPLEMENTATION OF SUCH ARM TECHNOLOGY WILL NOT INFRINGE ANY THIRD PARTY PATENTS,
COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
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AGAINST ARM, IN CONTRACT, TORT OR OTHERWISE, IN CONNECTION WITH THE SUBJECT MATTER OF THIS
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tradename, or AMBA trademark in connection with the relevant 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 relevant
AMBA Specification.
iv Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved. ARM IHI 0033B.b
Non-Confidential ID102715
7. This Licence shall remain in force until terminated by you or by ARM. Without prejudice to any of its other rights if LICENSEE
is in breach of any of the terms and conditions of this Licence then ARM may terminate this Licence immediately upon giving
written notice to You. You may terminate this Licence at any time. Upon expiry or termination of this Licence by You or by ARM
LICENSEE shall stop using the relevant AMBA Specification and destroy all copies of the relevant AMBA Specification in your
possession together with all documentation and related materials. Upon expiry or termination of this Licence, the provisions of
clauses 6 and 7 shall survive.
8. The validity, construction and performance of this Agreement shall be governed by English Law.
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
http://www.arm.com
ARM IHI 0033B.b Copyright © 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved. v
ID102715 Non-Confidential
Contents
ARM AMBA 5 AHB Protocol Specification AHB5,
AHB-Lite
Preface
About this specification ............................................................................................. viii
Feedback .................................................................................................................... xi
Chapter 1 Introduction
1.1 About the protocol .................................................................................................. 1-14
1.2 AHB revisions ........................................................................................................ 1-17
1.3 Operation ............................................................................................................... 1-18
Chapter 2 Signal Descriptions
2.1 Global signals ........................................................................................................ 2-20
2.2 Master signals ........................................................................................................ 2-21
2.3 Slave signals .......................................................................................................... 2-23
2.4 Decoder signals ..................................................................................................... 2-24
2.5 Multiplexor signals ................................................................................................. 2-25
Chapter 3 Transfers
3.1 Basic transfers ....................................................................................................... 3-28
3.2 Transfer types ........................................................................................................ 3-30
3.3 Locked transfers .................................................................................................... 3-32
3.4 Transfer size .......................................................................................................... 3-33
3.5 Burst operation ...................................................................................................... 3-34
3.6 Waited transfers ..................................................................................................... 3-39
3.7 Protection control ................................................................................................... 3-44
3.8 Memory types ........................................................................................................ 3-45
3.9 Secure transfers .................................................................................................... 3-50
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