Industry's First General-Purpose 32-bit RISC-V MCU Core Expands Design Freedom

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Renesas recently celebrated the launch of our general-purpose, 32-bit RISC-V-based microcontroller – the first commercially available MCU to use the Renesas-developed RISC-V CPU core. The breakthrough expands our MCU leadership by establishing the only MCU portfolio with options based on open-source RISC-V, Arm® Cortex®-M, and our own RX CPU cores.

www.renesas.com/us/en, Apr. 24, 2024 – 

For an excellent technical description of the new 32-bit RISC-V R9A02G021 MCU series, I encourage you to read the "RISC-V Unleashes Your Imagination" blog written by my colleague, Giancarlo Parodi.

Since the March launch, it's struck me that the microcontroller sector is evolving in an exciting direction by providing designers with a growing menu of choices tailored to their performance and power requirements. Unlike the classic 1990s debate between the merits of x86 (CISC) and PowerPC (RISC) CPU architectures, there is plenty of room under the MCU tent for competing – and complementary – processor cores. The common denominator is how best to serve our customers, who increasingly are prioritizing ease of design and the availability of an extensive toolchain network.

RISC-V: Where It's Heading

While it may still be in its infancy in many respects, we see it as our mission to move RISC-V from an academic pursuit to a viable commercial alternative backed by a reliable, time-tested embedded processing supplier and a robust software ecosystem. There are few manufacturers with the resources and track record required to make that claim. Having worked closely with the RISC-V International open-standards group, we've ensured that our RISC-V MCUs are poised to help customers win new sockets in consumer, medical, industrial, and IoT applications while moving from legacy 8- and 16-bit MCUs with a 32-bit performance upgrade and open-source instruction set architecture. For larger companies, that means a streamlined path to market. For smaller companies and start-ups, we derisk their investment by providing both a free-of-charge development system based on our e² studio IDE as well as commercial environments like SEGGER Embedded Studio for RISC-V and IAR Embedded Workbench for RISC-V to efficiently compile, analyze and debug code.

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