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The ARM Cortex-A7 MPCore is a 32-bit microprocessor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2011.
Video ARM Cortex-A7
Overview
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. 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
- 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
Maps ARM Cortex-A7
Chips
Several system-on-chips (SoC) have implemented the Cortex-A7 core, including:
- Allwinner A20 (dual-core A7 + Mali-400 MP2 GPU)
- Allwinner A31 (quad-core A7 + PowerVR SGX544MP2 GPU)
- Allwinner A83T (octa-core A7 + PowerVR SGX544 GPU)
- Allwinner H3 (quad-core A7 + Mali-400 MP2 GPU)
- Broadcom BCM23550 quad-core HSPA+ Multimedia Processor
- Broadcom BCM2836 (quad-core A7 + VideoCore IV GPU), designed specifically for Raspberry Pi 2
- 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)
- Mediatek MT6572 (dual-core A7 + ARM Mali-400MP1 GPU)
- Mediatek MT6582 (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.
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See also
- ARM architecture
- List of ARM cores
- List of applications of ARM cores
- Comparison of ARMv7-A cores
- JTAG
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References
src: linuxgizmos.com
External links
- ARM Holdings
- Official website
- Cortex-A7 Technical Reference Manuals
- Other
- Cortex-A7 instruction cycle timings
Source of article : Wikipedia
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