RH850/U2A16

Fast real-time performance and hardware-based virtualization-assisted function to speed ECU integration in complex ASIL D compliant automotive-control systems

 

The RH850/U2A16 MCU is equipped with four 400-megahertz (MHz) CPU cores in a dual core lock-step structure. Each CPU core integrates a hardware-based virtualization-assisted function, while maintaining the same fast real-time performance provided by the RH850. To support ASIL D, the RH850/U2A16 MCU includes self-diagnostic SR-BIST (Standby-Resume BIST) functions with minimized current fluctuation rate. The hardware-based virtualization-assisted function allows multiple software systems with varying ISO26262 functional safety levels to operate independently without interference during high performance. It also reduces the virtualization overhead to maintain real-time execution. This enables users to integrate multiple ECU functions into a single ECU while maintaining safety, security, and real-time operation requirements.

The RH850/U2A16 MCU is equipped with 16 megabytes (MB) of built-in flash ROM and 3.6 MB of SRAM, offering users the flexibility for future function expansion. It supports over-the-air (OTA) functionality that automatically and wirelessly updates ECU software to control programs without interrupting vehicle operations.

The RH850/U2A16 MCU includes security functions that support Evita Light up through Evita Full (Note) for enhanced protection against cyber-attacks, enabling the device to support safe and rapid Full No-Wait OTA software updates as security requirements evolve.

(Note) The EVITA (E-safety Vehicle Intrusion proTected Applications) project is co-funded by the European Union to develop in-vehicle network safety specifications. Evita Full is the highest level following Medium and Light.


2019年04月01日    https://www.renesas.com/tw/zh/products/microcontrollers-microprocessors/rh850/rh850u2x/rh850u2a16.html

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