"Cortex-M55" and "Ethos-U55" that realize voice recognition and image recognition by machine learning with low power consumption in Arm, automobiles, etc.

　Under the umbrella of the SoftBank Group, British Arm, which develops and provides IP (Intellectual Property) licenses for processors, etc., made a press release on February 10, stating that the company will develop embedded devices "Cortex-M55 (Cortex M Fifty Five)", the latest product of the Cortex-M series that has been provided as a CPU (Central Processing Unit) for , and NPU (Neural Announced "Ethos-U55", an accelerator for Processing Unit and AI.

Compared to the Cortex-A series, which has more powerful processing power such as smartphones and PCs, the Cortex-M series has lower processing power but lower power consumption. It is often used in SoC (System on a Chip). The Cortex-M55 announced this time has a SIMD engine called "Helium" added to the previously provided Cortex-M33, and the processing capacity when performing machine learning calculations is up to 15 compared to the previous generation. has doubled.

Ethos-U55, announced as an NPU, has a flexible structure that allows SoC vendors to adjust the number of engines used for calculations, and can be equipped with up to 256 engines. By using it together with the Cortex-M55, it can demonstrate up to 480 times the processing power compared to the conventional Cortex-M series alone.