ADAS SoCs for safety critical applications require IP functions supporting the latest protocols and algorithms in leading foundry processes. In addition to providing the advanced features, small area, high performance and low power required by ADAS applications, IP suppliers must meet the ISO 26262 Functional Safety standard defined by the automotive industry. The ISO 26262 standard, which was released in 2011, applies to functional safety in electrical and/or electronic systems within road vehicles. It addresses all activities of the safety lifecycle such as design and development of safety-related systems and includes SoCs that are classified as Safety-Elements-out-of-Context (SEooC). ISO 26262 provides an automotive-specific approach to determine Automotive Safety Integrity Levels (ASIL) and specifies measures to validate and confirm that the safety levels are achieved. The goal is to minimize susceptibility to random hardware failures by defining functional requirements, applying rigor to the development process and taking the necessary design measures including fault injection and systemic analysis and metrics reporting. Using IP that has been certified according to ISO 26262 will help SoC designers mitigate supply chain risk and accelerate the requirements specification, design, implementation, integration, verification, validation and configuration of their SoC level functional safety.
Synopsys has implemented an ISO 26262 safety culture within our IP development flow. Synopsys’ IP organization implements the policies, processes, strategies and managers required for ASIL Ready IP. In addition to the detailed functional safety training for development engineering, Synopsys’ safety managers have received intense training and certification as Semiconductor Automotive Functional Professionals (SC-AFSP) by leading automotive inspection company SGS-TÜV Saar and are fully empowered to ensure that the IP development adheres to the requirements.
The Synopsys IP development flow includes ISO 26262 “Work Products” (Figure 2) which provides integrated hardware safety features, verification plans, safety plans, verification reports, safety manuals and Failure Mode Effect and Diagnostic Analysis (FMEDA). The Synopsys IP Automotive Safety Packages contain the deliverables which enable designers to develop their SoC-level FMEDA report, thereby accelerating their development. Compliance certifications for SoCs and IP are granted by accredited industry auditors such as SGS-TÜV Saar who perform product and process reviews, assessments and audits of functional safety elements including ISO 26262 Work Products such as safety plans, safety features, failures in time (FIT) rate analysis and FMEDA analysis.