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Renesas expands line-up of 28nm cross-domain automotive control microcontrollers


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Rohde & Schwarz joins Car Connectivity Consortium to support development of smartphone-to-car communications


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enesas Electronics Corporation, a supplier of advanced semiconductor solutions, has introduced a powerful new group of microcontrollers (MCUs), the RH850/U2B MCUs, designed to address the growing need to integrate multiple applications into a single chip and realize a unified electronic control unit (ECU) for the evolving electrical-electronic (E/E) architecture. Delivering a combination of high-performance, flexibility, freedom from interference, and security, the cross-domain RH850/U2B MCUs are built for the rigorous workloads required by vehicle motion in terms of hybrid ICE and xEV traction inverter, high-end zone control, connected gateway, and domain control applications. With this, Renesas expands its cross- domain MCU portfolio with devices that range from RH850/U2A MCUs for body and chassis control systems up to high-performance RH850/U2B MCUs. Customers can also combine these MCUs with Renesas’ R-Car S4 system-on-chip devices for automotive central gateway systems to build a scalable solution for E/E architectures.


“The future of automotive systems design lies in a vehicle-centralized, zone-oriented E/E architecture, which elevates the need for automotive chips that address the challenges these innovative architectures create for future vehicle generations,” said Naoki Yoshida,


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vice president, automotive digital products marketing division at Renesas. “The RH850/ U2B MCUs expand Renesas’ cross-domain MCU family to offer customers higher levels of performance, memory integration, and hardware-based support for new zone- and domain-control applications, particularly for powertrain and HEV/EV, while maintaining the stringent cost, safety, and security parameters required for these automotive systems.” Designed for zone and domain applications, the 28nm RH850/U2B MCUs build on key functions from Renesas’ RH850/ E2x Series for powertrain and RH850/C1M-Ax Series for HEV/EV motor control, while adding several new enhancements including new accelerator IP, higher performance levels, and increased security. This combination enables users to integrate multiple ECU functions into a single ECU while adhering to stringent automotive-grade safety, security, and real- time operation requirements.


The MCU’s integrated hypervisor hardware- based virtualization assist function allows multiple software systems with up to ISO26262 ASIL D functional safety levels to operate independently, without interference, during high performance, and reduces the virtualization overhead to maintain real-time execution. Quality-of-Service (QoS) provides a latency monitor and regulation function for all bus masters to ensure minimum bandwidth is always available.


ohde & Schwarz has joined the Car Connectivity Consortium (CCC) to support the organisation’s mission to foster industrywide standards for communications between vehicles and smartphones. The company will contribute its broad expertise in mobile device and automotive technology testing. In particular, it will provide its solutions for the


development and production of UWB devices and modules for automotive applications such as keyless vehicle access.


The CCC is a cross-industry organisation that advances technologies for smartphone-to-car connectivity solutions. The recently launched CCC Digital Key Release 3.0 specification enables compatible mobile devices to perform passive keyless access and start the engine via UWB in combination with Bluetooth Low Energy (BLE).


UWB is a radio-based communications technology for short range, high speed spatial and directional transmission of data. It is likely to feature on a wide range of computer devices and IoT peripherals in the future. Testing the performance of UWB devices is important in the lab and on the production line to ensure compatibility and correct operation. Rohde & Schwarz provides a full range of UWB test solutions for R&D, certification and production that accurately measure key parameters such as time of flight (ToF) and angle of arrival (AoA).


UWB’s accurate ranging capability and low power consumption combined with high security and reliability makes it suitable for many automotive applications such as remote access and gesture recognition. For instance, the car can be parked or its trunk opened autonomously. Furthermore, with the UWB enabled Digital Key connection standardized by the CCC, access credentials to a rental vehicle can be shared or temporary access to in-car parcel delivery services can be granted via a mobile phone.


The R&S CMP200 radio communication tester is suitable for solving UWB test challenges in volume production as well as in R&D. The tester combines the capabilities of a signal analyser and a signal generator in a single instrument. In combination with Rohde & Schwarz shielded chambers and the company’s WMT software service to implement automated wireless manufacturing testing, the R&S CMP200 offers a complete solution for transmitter, receiver, ToF and AoA measurements in conducted and radiated mode, compliant to IEEE 802.15.4a/z specifications. (Image: GTY / d3sign)


Components in Electronics November 2021 17


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