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linux risc-v U54‑MC Coreplex processor
Last year, Silicon Valley Startup SiFive released the first open source SoC (system on a chip), which was named Freeform Everywhere 310. Now, going one step ahead from the embedded systems, the company has released U54-MC Coreplex IP, which is the world’s first RISC-V based 64-bit quad-core CPU that supports fully featured operating systems like Linux.

Before telling you about the new U54-MC, let me introduce you to the basics of RISC-V CPUs. The traditional Complex Instruction Set Computing (CISC) and Reduced Instruction Set Computing (RISC) do justice to their names and focus on the difficulty level of instructions as well as optimizations.

On the other hand, the RISC-V architecture is a free and open source ISA for processors, which can be produced or implemented by anyone, for free. ISA stands for Instruction Set Architecture and tells what a CPU needs to do.

Coming back to the latest development, U45-MC Coreplex takes RISC-V commercially into Linux processing applications. It has four U54 CPUs and a single E51 CPU; each of them run at 1.5GHz. U54 cores support the RV64GC ISA, which is expected to become standard ISA for RISC-V Linux devices.

U54‑MC Coreplex vs arm cortex
Image: SiFive

SiFive is offering customers 100 prototype SoCs for $100,000, according to EETimes. The customers don’t need to provide any fee on third-party IP until the chips are shipped. U54-MC Coreplex also comes with a rich SDK with demo software. Currently, Microsemi and Arduino are the two announced customers of SiFive.

In 2018 Q1, U54-MC will be available with a development board. Currently, it’s available in a limited “early access” phase. Find more information on SiFive’s website.

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Adarsh Verma
Fossbytes co-founder and an aspiring entrepreneur who keeps a close eye on open source, tech giants, and security. Get in touch with him by sending an email — [email protected]

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