In 2015, ARM introduced an energy-efficient 64/32-bit core for the big.LITTLE heterogeneous architecture, and released a 2016-bit kernel in 32 for wearable electronics.
And now, without attracting much attention, the company has introduced a 64-bit CortexβA34 core. This product is offered under the Flexible Access program, which gives integrated circuit designers access to a wide range of intellectual property with the ability to pay only for those blocks that will be used in the final product.
It is the only Cortex processor, along with the Cortex-A65, that only supports 64-bit instructions and is incompatible with 32-bit code. Cortex-A34 is built on the ARMv8-A architecture, has an 8-stage pipeline, supports symmetric multiprocessing (SMP) in a bunch of up to 4 cores in one cluster and several consecutive clusters of SMP processors connected via the AMBA 4 bus. level can reach 1 MB, including with ECC error correction.
There is support for TrustZone security technology, hardware virtualization, DSP extensions, SIMD (NEON), and low-cost floating point VFPv4, as well as a comprehensive component library for debugging and tracing functions in the CoreSight SoC-400 system.
ARM indicates that the Cortex-A34 will be used in a variety of applications, including industrial devices, smart home electronics, healthcare, and cloud computing. Surely the rejection of 32-bit instructions will reduce the cost of the final chip.
Source: 3dnews.ru