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GeezerVison is showing en.wikipedia.org — ARM Cortex-A7 - Wikipedia

ARM Cortex-A7
Mediatek MT6582V
General information
Launched2011[1]
Designed byARM Holdings
Performance
Max. CPU clock rate520 MHz  to 2.3 GHz 
Physical specifications
Cores
  • 1–8
Cache
L1 cache8–64 KB/8–64 KB
L2 cacheOptional, up to 1 MB
Architecture and classification
Instruction setARMv7-A
History
PredecessorARM Cortex-A5
SuccessorARM Cortex-A53

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

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:

  • Allwinner A20 (dual-core A7 + Mali-400 MP2 GPU)[4]
  • Allwinner A31 (quad-core A7 + PowerVR SGX544MP2 GPU)[5]
  • Allwinner A83T (octa-core A7 + PowerVR SGX544 GPU)[6]
  • Allwinner H3(quad-core A7 + Mali-400 MP2 GPU)[7]
  • Broadcom BCM23550 quad-core HSPA+ Multimedia Processor[8]
  • Broadcom BCM2836 (quad-core A7 + VideoCore IV GPU), designed specifically for Raspberry Pi 2[9]
  • Broadcom BCM6846 (dual-core A7) Broadband SoC[10]
  • NXP Semiconductor (Formerly Freescale) QorIQ Layerscape LS1 (dual-core A7)
  • Freescale i.MX 6 UltraLite
  • HiSilicon K3V3, big.LITTLE architecture with dual-core Cortex-A7 and dual-core Cortex-A15. Use ARM Mali-T658 GPU.
  • Marvell PXA1088 (quad-core A7 + Vivante GC1000)[11]
  • Mediatek MT6570 (dual-core A7 + ARM Mali-400MP1 GPU)
  • Mediatek MT6572 (dual-core A7 + ARM Mali-400MP1 GPU)
  • Mediatek MT6580 (quad-core A7 + ARM Mali-400MP2 GPU)
  • Mediatek MT6582 Archived 2021-06-10 at the Wayback Machine (quad-core A7 + ARM Mali-400MP2 GPU)
  • Mediatek MT6589 (quad-core A7 + Imagination Technologies PowerVR SGX544 GPU)
  • Mediatek MT6592 (octa-core A7 + ARM Mali-450MP4 GPU)
  • Mstar MSB2531A ARM Cortex A7 32bit 800MHZ
  • Qualcomm Snapdragon 200 and Snapdragon 400 MSM8212 and MSM8612, MSM8226, MSM8626 and MSM8926 (quad core A7 + Adreno 305 GPU)
  • Samsung Exynos 5 Octa (5410), big.LITTLE architecture with quad-core Cortex-A7 and quad-core Cortex-A15. Use Imagination Technologies PowerVR SGX544MP3 GPU.
  • Samsung Exynos 5 Octa (5420), big.LITTLE architecture with quad-core Cortex-A7 and quad-core Cortex-A15. Use ARM Mali-T628MP6 GPU.
  • STMicroelectronics STM32MP13x (single-core A7)
  • STMicroelectronics STM32MP15x (dual-core A7 + M4 + Vivante GPU)
  • ASPEED AST2600 BMC (dual-core A7 + M4)

See also

  • ARM architecture
  • Comparison of ARMv7-A cores
  • JTAG
  • List of applications of ARM cores
  • List of ARM cores

References

  1. 1 2 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. 1 2 3 Anand Lal Shimpi (2011-10-19). "ARM's Cortex A7: Bringing Cheaper Dual-Core & More Power Efficient High-End Devices". AnandTech. Archived from the original on October 21, 2011. 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. Archived from the original on 11 April 2015. Retrieved 3 February 2015.
  10. ↑ Zhang, William. "arm: bcmbca: add bcm6846 SoC support".
  11. ↑ "PXA1088". Marvell Technology Group. Archived from the original on 2013-05-12.

External links

Wikimedia Commons logo
Wikimedia Commons has media related to ARM Cortex-A7.
ARM Holdings
  • Official website
  • Cortex-A7 Technical Reference Manuals
Other
  • Cortex-A7 instruction cycle timings
Retrieved from "https://en.wikipedia.org/w/index.php?title=ARM_Cortex-A7&oldid=1356014594"
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  • ARM processors
  • ARM Holdings IP cores
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