Functional safety software provides diagnostics for Renesas’ 32-bit RX631 and RX63N MCUs
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With the demand to improve safety in the workplace and reduce operating costs, the industry has initiated the need to implement functional safety standards according to IEC61508 to design inherent safety for control systems and equipment.
To conform to functional safety, system manufacturers need to perform safety analysis not just at the system level, but also down to the device level. Safety analysis includes failure mode analysis, considering diagnostic methods, and assessment of its diagnostic coverage. Doing these tests and trying to get detailed test analysis from the device manufacturer is a significant burden.
Renesas’ safety solution for the RX631 and RX63N Group of MCUs has removed this burden by providing a self-test diagnostic software library, and a complete safety manual.
For the functional safety qualification, a comprehensive analysis targeting IEC61508 functional safety standard is performed and the result is published in the safety manual. The safety manual includes the RX MCU’s hardware safety mechanism, the diagnostic methods of software with its diagnostic coverage, and the safety parameter based on safety analysis for each function part of the MCU.
Since the diagnostic coverage of the CPU core has undergone comprehensive fault simulation tests, the design solution makes it easy to show the basis of the coverage estimation and enables effective system integration.
Visit Renesas Electronics Europe at www.renesas.eu
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