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 Since its introduction, the Cortex-A8 processor has been superseded by the Cortex-A15 and Cortex-A17 processors, but it represents a turning point upwards in the race for efficient high-performance 32-bit compute, and it is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.
Large increase in single thread performance over its predecessor, the ARM11.
- ARMv7-A support including NEON and TrustZone
Widely deployed in mobile and embedded, with numerous low-cost 3rd party development platforms. A great processor on which to learn the ARM architecture.
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The Cortex-A8 was designed to meet the needs of a rapidly expanding smartphone market with unprecedented mobile performance. It is currently shipped in a wide range of embedded products.
Low-cost consumer devices
Home networking appliances
Storage networking (HDD, SDD)
Superscalar 13+ stage pipeline.
First ARMv7-A processor
Support for Thumb-2, TrustZone, Jazelle-RCT and NEON technology.
Integrated and configurable L2 Cache Controller
Provides low-latency access to up to 1MB of cached memory.
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.
Related IPThe 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:
Cortex-A8 Technical Reference ManualFor system designers and software engineers, the Cortex-A9 manual provides information on implementing and programming Cortex-A9 based devices.
Technical Reference Manual
Cortex-A Series Programmer's Guide for ARMv7-ACommon 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-AARM 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.
Design support with Active AssistActive Assist on-site design review service gives licensees confidence that their Cortex-A8 CPU is implemented efficiently, to provide maximum system performance, with lowest risk and fastest time-to-market.
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Questions? Request more informationLearn more about Cortex-A8, ARM's performance and power optimized multi-core processor and one of the most widely deployed applications processors designed by ARM. Contact us to speak with our technical team.
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