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 Since its introduction, the Cortex-A8 processor has been superseded by the Cortex-A15 and Cortex-A17 processors, but it represents a turning point upwards in the race for efficient high-performance 32-bit compute, and it is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.
|Multicore||Single core only
|Memory Management Unit (MMU)
||Armv7 Memory Management Unit (MMU)
|Debug & Trace
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.
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
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
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
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
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:
|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?||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|