Renesas to demo working silicon of Arm Cortex-M85-based MCU

Renesas to demo working silicon of Arm Cortex-M85-based MCU

Business news |
By Rich Pell

The company says it is developing a new series of its RA MCUs based on the Cortex-M85 processor, planned for release in 2023. The demonstration of the new silicon will take place in the Renesas booth – Hall 1, Stand 234 (1-234) at the Embedded World 2022 Exhibition and Conference in Nuremburg Germany from June 21-24.

“As a lead partner with Arm, we are proud to be the first to demonstrate an MCU based on the high-performance Cortex-M85 processor, a clear example of the momentum that we have built in the Arm ecosystem,” says Roger Wendelken, Senior Vice President in Renesas’ IoT and Infrastructure Business Unit. “The RA family has enjoyed tremendous success in a very short time, demonstrating the core strengths that make Renesas an MCU powerhouse, including design expertise, legendary quality, and close collaboration with customers and partners in all markets and all geographies.”

The new RA family MCUs, says the company, will provide breakthrough performance and fully deterministic, low latency, real-time operation for demanding application needs across numerous markets. The new RA devices will bridge the gap between MCUs and MPUs, enabling complex and compute-intensive applications with the lower power consumption and ease of use of an MCU.

This will help customers preserve their investment in software development and reduce costs of migration to an MPU based system. As with other RA MCUs, says the company, the new devices will offer best-in-class peripherals, memory and low power consumption.

The Arm Cortex-M85 processor features Helium technology, Arm’s M-Profile Vector Extension that enables advanced DSP/ML capabilities and helps accelerate compute intensive applications such as endpoint AI. Delivering over 6 CoreMark/MHz, Cortex-M85 enables demanding IoT use cases that require the highest compute performance and DSP or ML capability, realized on a single, simple-to-program, Cortex-M processor. Cortex-M hallmarks such as deterministic operation, short interrupt response time, and state-of-the-art low-power support are uncompromised on Cortex-M85.

Dipti Vachani, senior vice president and general manager, Automotive and IoT Line of Business at Arm says, “To continue to scale and grow, the next generation of IoT solutions demand ever-improving levels of performance, security and simplified development, and we have delivered this with the new Arm Cortex-M85. This demonstration of the first silicon based on our most secure and highest performance Cortex-M processor will showcase the new and exciting applications it will enable and further cements our ongoing close collaboration with Renesas.”

The new Cortex-M85 core based on Armv8-M architecture supports Arm TrustZone technology for protection of secure assets. Combined with TrustZone, Renesas’ integrated cryptographic engine, immutable storage, key management, and tamper protection against DPA/SPA side-channel attacks will provide a comprehensive and fully integrated secure element functionality. The Armv8-M architecture also brings Pointer Authentication/Branch Target Identification (PAC/BTI) security extension, a new architectural feature that provides enhanced mitigation from software attack threats and helps achieve PSA Certified Level 2 certification.

The new RA MCUs based on the Cortex-M85 core will be supported by Renesas’ Flexible Software Package (FSP). The FSP enables faster application development by providing all the infrastructure software needed, including multiple RTOS, BSP, peripheral drivers, middleware, connectivity, networking and security stacks as well as reference software to build complex AI, motor control and graphics solutions. It allows customers to integrate their own legacy code and choice of RTOS with FSP, thus providing full flexibility in application development, and will ease migration of existing designs to the new RA devices.

Renesas Electronics

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