Design of a variable precision CORDIC coprocessor for RISC-V architecture based on FinFET process

This paper proposes a 32-bit RISC-V microprocessor for the IoT, which consists of Hummingbird e203 and configurable precision COordinate Rotation Digital Computer (CORDIC) coprocessor. Coprocessor is used to enhance processing power system. Custom instructions are added original instruction set accelerate complex calculations. Experimental results demonstrate that coprocessor can process applications 8-9 times faster than software-based approaches requires fewer instructions. The has been synthesized using FinFET process, achieving maximum frequency 952-Mhz. It occupies an area 14,640.5-um² peak consumption 13.5996-mW. Compared previous accelerators, it offers numerous performance advantages.