Cortex-A8

The Cortex-A8 processor is a high-performance and low-power application processor that provides full virtual memory capabilities.

Information on Cortex-A8.

Getting Started

The Cortex-A8 was first introduced in 2005 and was the first processor to support the Armv7-A architecture. Since its introduction, the Cortex-A8 processor has been superseded by the Cortex-A15 and Cortex-A17 processors, but it represents a turning point upwards in the race for efficient high-performance 32-bit compute, and it is still widely deployed in many embedded applications.

Specifications

Architecture Armv7
Multicore Single core only
ISA Support
 
Memory Management Unit (MMU)
Armv7 Memory Management Unit (MMU)
Debug & Trace
CoreSight

Characteristics

The Cortex-A8 processor was the first to use the Armv7-A architecture. Armv7 incorporated three key elements: the NEON single instruction multiple data (SIMD) unit, Arm TrustZone security extensions, and the Thumb-2 instruction set for reduced code size via a mix of 16-bit and 32-bit extensions. The Cortex-A8 implements the extended ISA in the first ever fully superscalar design from Arm. It has a full dual-issue pipeline, meaning the Cortex-A8 can simultaneously issue any two instructions that occur sequentially in the instructions stream whose arguments do not have unresolved dependencies.

The processor has a number of features which make it ideal for use in high-performance end products. A symmetric, superscalar pipeline allows for full dual-issue capability and high-frequency configurations. There is an advanced branch prediction unit with over 95% accuracy, and an integrated L2 cache provides optimal performance in demanding systems. The Cortex-A8 supports NEON technology, allowing it to take advantage of accelerated multimedia and DSP processing.

The Arm Cortex-A8 processor has the ability to scale in speed from 600MHz to greater than 1GHz, meeting the requirements for power-optimized mobile devices needing operation in less than 300mW and performance-optimized consumer applications.


  • Manual containing technical information.
  • Cortex-A8 Technical Reference Manual

    For system designers and software engineers, the Cortex-A8 manual provides information on implementing and programming Cortex-A8 based devices.

    Read here
  • A program that is running on a desktop.
  • Cortex-A Series Programmer's Guide for Armv7-A

    Common to all Cortex-A series processors, this programmer's guide is useful for assembly and C language application development for Armv7-A.

    Get the Guide
  • a ulink, a board, a desktop.
  • Development Tools for Cortex-A

    Arm and our partners provide specialist code generation, debug and analysis tools for software development on Cortex-A series processors, such as DS-5 Development Studio.

    Development Tools

Get Support

Arm Support

Arm training courses and on-site system-design advisory services enable licensees to efficiently integrate the Cortex-A8 processor into their design to realize maximum system performance with lowest risk and fastest time-to-market.

Arm training courses  Arm Design Reviews  Open a support case

Related IP

The Cortex-A8 processor can be incorporated into an SoC using a broad range of Arm technology including Graphics IP, System IP, and Physical IP. The Cortex-A8 processor is fully supported by Arm development tools. Related IP includes:

 

Graphic IP
Other IP
Tools

Mali-400 GPU

Mali Display Processors

Mali V500 Video Processor

CoreLink Network Interconnect Family

CoreLink System Controllers

Interrupt Controllers

CoreSight SoC-400

POP IP

DS-5 Development Studio

Fixed Virtual Platforms

Development Boards

Arm Compiler

Fast Models

 

Community Blogs

Community Forums

Answered Whether Armv7-A has a Write Buffer 0 votes 445 views 8 replies Latest 3 days ago by Yang Wang Answer this
Answered dsb and dmb 0 votes 1061 views 11 replies Latest 5 days ago by digital_kevin Answer this
Answered Armv7 Store Buffer 0 votes 328 views 6 replies Latest 6 days ago by Yang Wang Answer this
Answered Digital design flow (synthesis) 0 votes 567 views 5 replies Latest 6 days ago by Joseph Yiu Answer this
Answered A panic function to halt the processor in low-power sleep using WFI? 1 votes 286 views 5 replies Latest 7 days ago by 42Bastian Schick Answer this
Answered SAU, IDAU, MPC and PPC. What's the difference?
  • Musca-A
  • TrustZone for Armv8-M
  • TrustZone
  • Cortex-M33
2 votes 220 views 2 replies Latest 7 days ago by Afonso Santos Answer this
Answered Whether Armv7-A has a Write Buffer Latest 3 days ago by Yang Wang 8 replies 445 views
Answered dsb and dmb Latest 5 days ago by digital_kevin 11 replies 1061 views
Answered Armv7 Store Buffer Latest 6 days ago by Yang Wang 6 replies 328 views
Answered Digital design flow (synthesis) Latest 6 days ago by Joseph Yiu 5 replies 567 views
Answered A panic function to halt the processor in low-power sleep using WFI? Latest 7 days ago by 42Bastian Schick 5 replies 286 views
Answered SAU, IDAU, MPC and PPC. What's the difference? Latest 7 days ago by Afonso Santos 2 replies 220 views