Renesas to show first ARM M85 silicon

Renesas to show first ARM M85 silicon

Business news |
By Nick Flaherty

Renesas Electronics is to show the first live demonstration of a microcontroller (MCU) based on the recently announced ARM Cortex-M85 core.

Renesas is developing a new series of RA MCUs based on the Cortex-M85 core for release in 2023. The M85 is ARM’s highest performing core, adding embedded Vector Extensions to accelerate digital signal processing and machine learning code. The core has been benchmarked at 6 CoreMark/MHz by using selective triple instruction issue while maintaining deterministic operation, short interrupt response time and low-power support.

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“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,” said Roger Wendelken, Senior Vice President in Renesas’ IoT and Infrastructure Business Unit.

Renesas sees the M85 RA devices bridging the gap between MCUs and MPUs, enabling complex and compute-intensive applications with the lower power consumption and ease of use of an MCU in IoT and edge AI applications.

The Cortex-M85 core also includes 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 used in the M85 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 devices will be supported by the Renesas Flexible Software Package (FSP). This provides infrastructure software such as multiple real time operating systems (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. Using the FSP will ease migration of existing designs to the new RA devices.

Renesas introduced the RA (Renesas Advanced) Family of ARM Cortex-M devices in October of 2019 and has introduced 17 MCU groups with well over 200 individual parts.

“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,” said Dipti Vachani, senior vice president and general manager, Automotive and IoT Line of Business at Arm. “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 demonstration of the new silicon will take place in the Renesas booth at Embedded World next month.

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