ARM Cortex-A12 - Reference.org

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L1 cache 32-64 KiB I, 32 KiB D

L2 cache 256 KiB–8 MiB (configurable with L2 cache controller)

Microarchitecture ARMv7-A

Cores

1–4

Product code name(s)

Predecessor ARM Cortex-A9

Successor ARM Cortex-A17

Additional information

ARM Cortex-A12

32-bit multicore processor

The ARM Cortex-A12 is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture. It provides up to 4 cache-coherent cores. The Cortex-A12 is a successor to the Cortex-A9.

ARM renamed A12 as a variant of Cortex-A17 since the second revision of the core in early 2014, because they were indistinguishable in performance.

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Overview

Main article: Comparison of ARMv7-A cores

ARM claims that the Cortex-A12 core is 40 percent more powerful than the Cortex-A9 core.⁴ New features not found in the Cortex-A9 include hardware virtualization and 40-bit Large Physical Address Extensions (LPAE) addressing. It was announced as supporting big.LITTLE,⁵ however shortly afterwards the ARM Cortex-A17 was announced as the upgraded version with that capability.⁶

Key features of the Cortex-A12 core are:⁷

Out-of-order speculative issue superscalar execution pipeline giving 3.00 DMIPS/MHz/core.
NEON SIMD instruction set extension.
High performance VFPv4 floating point unit.
Thumb-2 instruction set encoding reduces the size of programs with little impact on performance.
TrustZone security extensions.
L2 cache controller (0-8 MB).
Multi-core processing.
40-bit Large Physical Address Extensions (LPAE) addressing up to 1 TB of RAM.
Hardware virtualization support.

External links

ARM Holdings

Official website

References

"ARM Cortex-A12 Processor". Arm.com. http://www.arm.com/products/processors/cortex-a/cortex-a12-processor.php ↩
Anand Lal Shimpi (11 February 2014). "ARM Cortex A17: An Evolved Cortex A12 for the Mainstream in 2015". AnandTech. Retrieved 30 September 2014. http://www.anandtech.com/show/7739/arm-cortex-a17 ↩
Stefan Rosinger (1 October 2014). "ARM Cortex-A17 / Cortex-A12 processor update". ARM Connected Community. http://community.arm.com/groups/processors/blog/2014/09/30/arm-cortex-a17-cortex-a12-processor-update ↩
"ARM launches new Cortex-A12 processor with new Mali-T622 GPU and Mali-V500 video processing". Archived from the original on 26 August 2013. Retrieved 3 June 2013. https://web.archive.org/web/20130826134614/http://www.androidauthority.com/arm-launches-cortex-a12-220160/ ↩
ARM Targets 580 Million Mid-Range Mobile Devices with New Suite of IP http://www.arm.com/about/newsroom/arm-targets-580-million-mid-range-mobile-devices-with-new-suite-of-ip.php ↩
Anand Lal Shimpi (11 February 2014). "ARM Cortex A17: An Evolved Cortex A12 for the Mainstream in 2015". Anandtech. http://www.anandtech.com/show/7739/arm-cortex-a17 ↩
"Cortex-A12 Processor Specifications". ARM. http://www.arm.com/products/processors/cortex-a/cortex-a12-processor.php?tab=Specifications ↩

Overview

See also

External links

References