Accellera’s FSL 1.0 Gives Functional Safety Data a Common Language

What happened

Accellera Systems Initiative has approved Functional Safety Language Standard 1.0 (FSL 1.0) for release, announced October 21, and the standard is available for download. The standard establishes a common language and data model for capturing, exchanging, and integrating functional safety information throughout electronic systems development, focusing on failure modes, effects, and diagnostic analysis (FMEDA). It supports hierarchical FMEDAs, both assumption-based and design-mapped approaches, refining estimated diagnostic coverage using verification and fault-injection results, Tcl-based syntax for machine processing, and calculation and reporting of safety-related failure rates and metrics associated with ISO 26262 and IEC 61508. It targets reliable movement of safety information across tools, engineering teams, and companies, from IP through integrated circuits to systems. The source states that adopting FSL alone does not demonstrate compliance or certify a product, existing standards retain their requirements, and the standard's value will depend on adoption by tool vendors, suppliers, and customers.

Impact and signal

Affected components and suppliers

Source and time

Source: SemiWiki · 10/26/2026 · View original source