ARM Cortex-A7

The ARM Cortex-A7 MPCore is a 32-bit microprocessor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2011.[1]

ARM Cortex-A7
Mediatek MT6582V
General Info
Launched2013[1]
Designed byARM Holdings
Cache
L1 cache8–64 KB/8–64 KB
L2 cacheOptional, up to 1 MB
Architecture and classification
MicroarchitectureARMv7-A
Physical specifications
Cores
  • 1–8

Overview
The Cortex-A7 is used to power the popular Raspberry Pi 2 micro-computer.
Main article: Comparison of ARMv7-A cores

It has two target applications; firstly as a smaller, simpler, and more power-efficient successor to the Cortex-A8. The other use is in the big.LITTLE architecture, combining one or more A7 cores with one or more Cortex-A15 cores into a heterogeneous system.[2] To do this it is fully feature-compatible with the A15.

Key features of the Cortex-A7 core are:

  • Partial dual-issue, in-order microarchitecture with an 8-stage pipeline[3]
  • NEON SIMD instruction set extension
  • VFPv4 Floating Point Unit
  • Thumb-2 instruction set encoding
  • Jazelle RCT
  • Hardware virtualization
  • Large Page Address Extensions (LPAE)
  • Integrated level 2 Cache (0–1 MB)
  • 1.9 DMIPS / MHz[3]
  • Typical Clock Speed 1.5 GHz[3]

Chips

Several system-on-chips (SoC) have implemented the Cortex-A7 core, including:

gollark: * purely cryoapiaristic
gollark: It made it into my daily notes page, actually.
gollark: Oh yes, that.
gollark: I only interact with it through reading about it on the internet occasionally, or reading things from people who live there.
gollark: Great!

See also

References
  1. Ryan Whitwam (2011-10-21), ARM Cortex-A7 offers a microdot-sized glimpse into the future of mobile processors, ExtremeTech
  2. "big.LITTLE Processing". ARM Holdings. Archived from the original on 2012-10-22. Retrieved 2012-10-17.
  3. Anand Lal Shimpi (2011-10-19). "ARM's Cortex A7: Bringing Cheaper Dual-Core & More Power Efficient High-End Devices". AnandTech. Retrieved 2012-10-17.
  4. "AllWinner Publishes A31 and A20 Processors Details". CNXSoft. December 9, 2012. Archived from the original on December 12, 2012. Retrieved 2012-12-09.
  5. "A31". Allwinner Technology. Archived from the original on 2016-02-21. Retrieved 2016-02-18.
  6. "A83T". Allwinner Technology. Archived from the original on 2016-02-10. Retrieved 2016-02-18.
  7. "H3". Allwinner. Retrieved 2016-11-04.
  8. "BCM23550". Broadcom. Archived from the original on 2013-10-29.
  9. Upton, Eben. "Raspberry Pi 2 on sale now at $35". Raspberry Pi Foundation. Retrieved 3 February 2015.
  10. "PXA1088". Marvell Technology Group. Archived from the original on 2013-05-12.
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