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Processors for car safety apps feature DSP, cache support

13 May 2016

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Synopsys Inc. has extended its Safety Enhancement Package (SEP) to its DesignWare ARC EM processors that include cache support and DSP acceleration. According to the company, the ARC EM4, EM6, EM5D and EM7D cores, combined with the ARC SEP option, have been certified ASIL D Ready by SGS-TUV Saar.

The ultra-compact cores incorporate critical safety features such as error-correcting code (ECC) and a programmable watchdog timer for detecting system failures. The SEP option adds a lockstep interface and comprehensive safety documentation that facilitate chip- and system-level ISO 26262 ASIL D compliance. In addition, software developers can accelerate the development of ISO 26262-compliant code with the ASIL D Ready certified ARC MetaWare Compiler. The ARC EM cores with SEP are designed to meet the small area and rigorous safety requirements of SoCs targeting a range of automotive applications including sensors, controllers and ADAS.

All ARC EM processors are configurable and extensible to meet the unique performance, power and area requirements of each target application. ARC processors have been successfully deployed in automotive applications for years, and in 2013 Synopsys introduced the Safety Enhancement Package for ARC EM4 cores to help automotive chip designers meet the specific requirements of the ISO 26262 functional safety standard. Now, to address the evolving processing requirements in automotive applications such as motor control and sensor fusion, the SEP option is being extended to EM processors that support DSP functions and incorporate up to 32Kbytes of instruction and data caches. In addition, the EM cores with the SEP option are the first cores in their class to be certified ASIL D Ready. The combination of the ARC EM cores' integrated hardware safety features, ASIL certification and safety-related collateral such as a Failure Modes, Effects, and Diagnostic Analysis (FMEDA) report saves automotive designers months of effort in their SoC development and ISO 26262 certification process.

The DesignWare ARC MetaWare Development Toolkit for Safety is a complete solution for developing, debugging and optimising embedded software targeted for ARC processors, the company stated. Included in the toolkit is an ASIL D Ready certified compiler and safety collateral, including a safety manual and safety guide, to help developers of safety-critical systems fulfill the requirements of the ISO 26262 standard and prepare for compliance testing.

The ASIL D Ready certified DesignWare ARC EM4, EM6, EM5D and EM7D cores with SEP package, and the MetaWare Toolkit for Safety are available.




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