ARC

ARC is a family of highly configurable 32-/64-bit RISC processor IP cores, optimized by Synopsys for power-efficient embedded systems and shipping in over 1.5 billion units annually.

The ARC Processor IP (Argonaut RISC Core) is a leading, highly configurable 32- and 64-bit RISC core family from Synopsys DesignWare. This technology delivers optimized performance, power, and area (PPA) efficiency for System-on-Chip (SoC) designs across diverse markets: IoT, automotive (up to ASIL D safety), and digital home. Its core strength is extensibility: designers use the ARChitect tool and ARC Processor eXtension (APEX) to add custom instructions, precisely tailoring the core (EM, HS, VPX, ARC-V families) to application requirements. Over 200 organizations license ARC, driving its deployment in more than 1.5 billion products each year.

https://www.synopsys.com/designware-ip/processor-solutions.html