ARM Cortex-A8

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ARM Cortex-A8
Designed by ARM Holdings
Common manufacturer(s)
Microarchitecture ARMv7-A
Cores 1
L1 cache 32 KiB/32 KiB
L2 cache 512 KiB

The ARM Cortex-A8 is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture.

Compared to the ARM11 core, the Cortex-A8 is a dual-issue superscalar design, achieving roughly twice the instructions executed per clock cycle. The Cortex-A8 was the first Cortex design to be adopted on a large scale for use in consumer devices.[1]

Features[edit]

Key features of the Cortex-A8 core are:

  • Frequency from 600 MHz to 1 GHz and above
  • Superscalar dual-issue microarchitecture
  • NEON SIMD instruction set extension [2]
  • 13-stage integer pipeline and 10-stage NEON pipeline [3]
  • VFPv3 Floating Point Unit
  • Thumb-2 instruction set encoding
  • Jazelle RCT (Also known as ThumbEE instruction set)
  • Advanced branch prediction unit with >95% accuracy
  • Integrated level 2 Cache (0–4 MiB)
  • 2.0 DMIPS/MHz

Chips[edit]

Several system-on-chips (SoC) have implemented the Cortex-A8 core, including:

See also[edit]

References[edit]

  1. ^ Gupta, Rahul (April 26, 2013). "ARM Cortex: The force that drives mobile devices". The Mobile Indian. Retrieved 2013-05-15. 
  2. ^ Cortex-A8 Specification Summary; ARM Holdings.
  3. ^ Williamson, David, ARM Cortex A8: A High Performance Processor for Low Power Applications (PDF), archived from the original (PDF) on 2015-01-01 
  4. ^ "i.MX51 Applications Processor and Linux Hands on" (PDF). 
  5. ^ "RK29XX". Archived from the original on 2011-11-05. 
  6. ^ "CX97255" (PDF). Archived from the original (PDF) on 2012-11-19. 

External links[edit]

ARM Holdings