The number of connected IoT devices exceeded 46 billion in 2021 and is expected to reach a remarkable 125 billion by 2030. This will shift the semiconductor market significantly as each IoT device requires a processor core to effectively process the enormous amount of data and associated transactions. To make the most out of such market potential, RISC-V architecture has become a new alternative to x86 or ARM for SoC designers, thanks to its open instruction format and low cost.