ARM Cortex-A12
| Designed by | ARM Holdings |
|---|---|
| Microarchitecture | ARMv7-A |
| Cores | 1–4 |
| L1 cache | 32-64 KiB I, 32 KiB D |
| L2 cache | 256 KiB–8 MiB (configurable with L2 cache controller) |
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.[1]
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.[2][3]
Overview
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.
See also
- ARM architecture
- List of ARM cores
- List of applications of ARM cores
- Comparison of ARMv8-A cores
- JTAG
References
- ↑ "ARM Cortex-A12 Processor". Arm.com.
- ↑ Anand Lal Shimpi (February 11, 2014). "ARM Cortex A17: An Evolved Cortex A12 for the Mainstream in 2015". AnandTech. Retrieved 2014-09-30.
- ↑ Stefan Rosinger (1 October 2014). "ARM Cortex-A17 / Cortex-A12 processor update". ARM Connected Community.
- ↑ ARM launches new Cortex-A12 processor with new Mali-T622 GPU and Mali-V500 video processing
- ↑ ARM Targets 580 Million Mid-Range Mobile Devices with New Suite of IP
- ↑ Anand Lal Shimpi (February 11, 2014). "ARM Cortex A17: An Evolved Cortex A12 for the Mainstream in 2015". Anandtech.
- ↑ "Cortex-A12 Processor Specifications". ARM.
External links
- ARM Holdings