Copyright © 2003, 2004 ARM Limited. All rights reserved.
ARM IHI 0022B
AMBA
®
AXI Protocol
v1.0
Specification
ii Copyright © 2003, 2004 ARM Limited. All rights reserved. ARM IHI 0022B
AMBA AXI Protocol
Specification
Copyright © 2003, 2004 ARM Limited. All rights reserved.
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Change history
Date Issue Change
16 June, 2003 A First release
19 March 2004 B Define read and write address channels
ARM IHI 0022B Copyright © 2003, 2004 ARM Limited. All rights reserved. iii
Confidentiality Status
This document is Open Access. This document has no restriction on distribution.
Product Status
The information in this document is Final (information on a developed product).
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iv Copyright © 2003, 2004 ARM Limited. All rights reserved. ARM IHI 0022B
ARM IHI 0022B Copyright © 2003, 2004 ARM Limited. All rights reserved. v
Contents
AMBA AXI Protocol Specification
Preface
About this document .................................................................................... xiv
Feedback ................................................................................................... xviii
Chapter 1 Introduction
1.1 About the AXI protocol ................................................................................ 1-2
1.2 Architecture ................................................................................................. 1-3
1.3 Basic transactions ....................................................................................... 1-7
1.4 Additional features .................................................................................... 1-11
Chapter 2 Signal Descriptions
2.1 Global signals ............................................................................................. 2-2
2.2 Write address channel signals .................................................................... 2-3
2.3 Write data channel signals .......................................................................... 2-4
2.4 Write response channel signals .................................................................. 2-5
2.5 Read address channel signals .................................................................... 2-6
2.6 Read data channel signals .......................................................................... 2-7
2.7 Low-power interface signals ........................................................................ 2-8