CoreSight™ ETM™-A7 Technical Reference Manual

Revision: r0p0

Table of Contents

About this book
Product revision status
Intended audience
Using this book
Additional reading
Feedback on this product
Feedback on content
1. Introduction
1.1. About the CoreSight ETM-A7 macrocell
1.2. Compliance
1.2.1. Embedded Trace Macrocell architecture
1.2.2. CoreSight Architecture
1.2.3. Advanced Microcontroller Bus Architecture
1.3. Features
1.4. Interfaces
1.5. Configurable options
1.6. Test features
1.7. Product documentation and design flow
1.7.1. Documentation
1.7.2. Design flow
1.8. Product revisions
2. Functional Description
2.1. About the ETM-A7 macrocell functions
2.2. Interfaces
2.3. Clocking and resets
2.3.1. Clock signals
2.3.2. Clock enable signals
2.3.3. Resets
2.4. Operation
2.4.1. Implementation-defined registers
2.4.2. Precise TraceEnable events
2.4.3. Parallel instruction execution
2.4.4. Context ID tracing
2.4.5. VMID tracing
2.4.6. Trace and Comparator features
2.4.7. Interaction with the Performance Monitoring Unit (PMU)
2.4.8. Other implementation-defined features of the macrocell
2.5. Constraints and limitations of use
2.5.1. Port mode and port size
3. Programmers Model
3.1. About the programmers model
3.2. Mode of operation
3.2.1. Controlling ETM programming
3.2.2. Programming and reading ETM registers
3.3. Data structures
3.4. Register summary
3.4.1. Functional grouping of registers
3.5. Register descriptions
3.5.1. Main Control Register
3.5.2. Configuration Code Register
3.5.3. ASIC Control Register
3.5.4. ID Register
3.5.5. Configuration Code Extension Register
3.5.6. Extended External Input Selection Register
3.5.7. Power-Down Control Register
3.5.8. Power-Down Status Register
3.5.9. Auxiliary Control Register
3.5.10. ETM ID Register 2
3.5.11. Peripheral identification registers
3.5.12. Component identification registers
3.5.13. Integration test registers
A. Signal Descriptions
A.1. Signal descriptions
B. Revisions

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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 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.

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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.

Revision History
Revision A12 September 2011First release for r0p0
Copyright © 2011 ARM. All rights reserved.ARM DDI 0468A