ARM Cortex A9 User Manual

ARM DDI 0388I Copyright © 2008-2012 ARM. All rights reserved. iii
ID073015 Non-Confidential
Contents
Cortex-A9 Technical Reference Manual
Preface
About this book .......................................................................................................... vii
Feedback .................................................................................................................... xi
Chapter 1 Introduction
1.1 About the Cortex-A9 processor ............................................................................... 1-2
1.2 Cortex-A9 variants ................................................................................................... 1-4
1.3 Compliance .............................................................................................................. 1-5
1.4 Features ................................................................................................................... 1-6
1.5 Interfaces ................................................................................................................. 1-7
1.6 Configurable options ................................................................................................ 1-8
1.7 Test features ............................................................................................................ 1-9
1.8 Product documentation and design flow ................................................................ 1-10
1.9 Product revisions ................................................................................................... 1-12
Chapter 2 Functional Description
2.1 About the functions .................................................................................................. 2-2
2.2 Interfaces ................................................................................................................. 2-4
2.3 Clocking and resets ................................................................................................. 2-6
2.4 Power management ............................................................................................... 2-10
2.5 Constraints and limitations of use .......................................................................... 2-15
Chapter 3 Programmers Model
3.1 About the programmers model ................................................................................ 3-2
3.2 ThumbEE architecture ............................................................................................. 3-3
3.3 The Jazelle Extension .............................................................................................. 3-4
3.4 Advanced SIMD architecture ................................................................................... 3-5
3.5 Security Extensions architecture ............................................................................. 3-6
3.6 Multiprocessing Extensions ..................................................................................... 3-7

ARM Cortex A9 Specifications

General

Architecture	ARMv7-A
Cores	1-4
SIMD Extensions	NEON
ISA	ARM
Microarchitecture	Cortex-A9
Instruction Width	32-bit
Data Width	32-bit
MMU	Yes
Instruction Set	ARMv7-A
Clock Speed	Up to 2 GHz
L1 Cache	32 KB Instruction, 32 KB Data (per core)
Process Technology	40 nm, 28 nm
Floating Point Unit	VFPv3
Pipeline Depth	8 stages
Power Consumption	Low power design