From the press release: "Evolved from the previously announced SiFive U84 microa...

		FullyFunctional on June 22, 2021 \| parent \| context \| favorite \| on: SiFive P550 Core: High-Performance RISC-V Processo... From the press release: "Evolved from the previously announced SiFive U84 microarchitecture," The U84 was a from scratch, in-house design.