ARM最新的AMBA5协议，请参考阅读，谢谢
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All rights reserved ARM IHI 0033B b Non-Confidential 1D102715 Contents ARM AMBA 5 AHB Protocol Specification AHB5 AHB-Lite Preface About this specification Feedback Ⅺ Chapter Introduction About the protocol 1-14 1.2 AHB revisions 1-17 Operation ∴11-18 Chapter 2 Signal Descriptions 2.1 Global signals 2-20 2.2 Master signals 2-21 2.3 Slave signals 2-23 24 Decoder signals 2-24 2.5 Multiplexor signals 2-25 Chapter 3 Transfers 3.1 Basic transfers 3-28 3.2 3-30 3.3 Locked transfers 3.4 Transfer size 3-33 Burst operation 3-34 3.6 Waited transfers 3-39 Protection control 3-4 3.8 typ 3-45 3.9 Secure transfers ARM IHI 0033B b Copyright 2001, 2006, 2010, 2015 ARM Limited or its affiliates. A/ rights reserved D102715 Non-Confidential Contents Chapter 4 Bus Interconnection Interconnect 4-52 4.2 Address decoding Read data and response multiplexor 4-54 Chapter 5 Slave Response Signaling 5.1 Slave transfer responses 5-56 Chapter 6 Data buses 6.1 Data buses 6-60 6.2 Endⅰ anness .6-61 6.3 Data bus width 6-65 Chapter 7 Clock and reset 7.1 Clock and reset requirements 7-68 Chapter 8 Exclusive transfers 8.1 Introduction .8-70 8.2 Exclusive Access monitor 8-71 8.3 EXclusive access signaling 8-72 8 Exclusive transfer restrictions Chapter 9 Atomic 9.1 Single-copy atomicity size 976 9.2Mut- copy atomicity…… 9-77 Chapter 10 User Signaling 10.1 User signal description…… 10-80 10.2 User signal interconnect recommendations.....….…….….1081 Appendix A Revisions Glossary ARM IHI 0033B b Copyright 2001, 2006, 2010, 2015 ARM Limited or its affiliates. A/ rights reserved D102715 Non-Confidential Preface This preface introduces the A MiA5 AllB Protocol Specification. It contains the following sections About this specification on page vii Feedback on page x ARM IHL O033B b Copyright o 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved D102715 Non-Confidential About this specification About this specification This spccification dcscribcs thc amba 5 AHB protocol Intended audience This specification is written for hardware and software engineers who want to become familiar with the AHB protocol and design systems and modules that are compatible with the ahB protocol Using this specification This specification is organized into the following chapters Chapter l Introduction Read this chapter for an overview of the AMBa 5 AHB protocol Chapter 2 Signal descriptions Read this chapter for descriptions of the signals Chapter 3 Transfers Read this chapter for information about the different types of transfer initiated by a master Chapter 4 Bus Interconnection Read this chapter for information about the interconnect logic required for AHB systems Chapter 5 lave Response signaling Read this chapter for information about the slave response signaling Chapter 6 Data Buses Read this chapter for information about the read and write data buses and how to interface to different data bus widths Chapter 7 Clock and Reset Read this chapter for information about the clock and reset signals Chapter 8 Exclusive transfers Read this chapter for infornation about Exclusive transfers, the Exclusive Access monitor and the additional signals associated with Exclusive transfers Chapter 9 Atomicity Read this chapter for information on the atomic properties that this specification defines Chapter 10 User Signaling Read this chapter for a description of the set of optional user defined signals, on each channel, called ser signal Appendix A Revisions Read this appendix for a description of the technical changes between released issues of this pacification Gloss Read the Glossary for definitions of terms used in this specification. Copyright o 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved ARM IHI 0033B b Non-Confidential 1D102715 Preface About this specification Conventions This section describes the conventions that this specification uses bogra Timing diagrams Signals on page x typographical The typographical conventions are italic Highlights important notes, introduces special terminology, and denotes internal cross-references and citations Denotes signal names, and is used for terms in descriptive lists, where appropriate monospace Used for assembler syntax descriptions, pseudocode and source code examples Also used in the main text for instruction mnemonics and for re ferences to other item appearing in assembler syntax descriptions, pseudocode, and source code examples. SMALL CAPITALS Used for a few terms that have specific technical meanings Timing diagrams The Key to timing diagram conventions explains the components used in timing diagrams. Variations. when they ccur, have clear labels. You must not assume any timing information that is not explicit in the diagrams Shaded bus and signal areas are undefined so the bus or signal can assume any value that the shaded area represents The actual level is unimportant and does not affect normal operation Clock HIGH to LoW Transient HIGH/LOW to HIGH Bus stable Bus to high impedance Bus change XX High impedance to stable bus Key to timing diagram conventions Timing diagrams sometimes show single-bit signals as HIGH and low at the same time and they look similar to the bus change that the Key to timing diagram conventions figure shows. If a timing diagram shows a single-bit signal in this way then its value does not affect the accompanying description ARM IHI 0033B b Copyright o 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved D102715 Non-Confidential About this specification Signals The signal conventions are Signal level The level of an asserted signal depends on whether the signal is active-HIGH or active-LOW, asserted means IIIGll for active-lIIGlI signals LoW for active-LOw signals ower-case n At the start or end of a signal name denotes an active-lOW signal Prefix h Denotes an Advanced High-performance Bus(AHB) signal Prefix P Denotes an Advanced Peripheral Bus(APB) signals Numbers Numbers are normally written in decimal. Binary numbers are preceded by ab, and hexadecimal numbers by Ox Both are written in a monospace font Additional reading This section lists relevant publications from ARM Seetheinfocenterhttp://infocenter.arm.comforaccesstoArmdocumentation ARM publications ARM AMBA APB Proluc'ol Specificalion(ARM IHI 0024) ARM AMBA AXI and ACE Protocol Specification(ARM IHI 0022) Multi-layer AHB Overview(ARM DVI 0045) Copyright o 2001, 2006, 2010, 2015 ARM Limited or its affiliates. All rights reserved ARM IHI 0033B b Non-Confidential 1D102715