PSS 3.1 Public Review Now Open

The Portable Stimulus Standard (PSS) 3.1 Draft Standard is available for public review, giving the design and verification community an opportunity to review the latest enhancements to PSS and provide feedback before its release.

PSS 3.1 is a focused release that builds on the capabilities of PSS 3.0, with updates concentrated in four key areas:

• A stronger constraint language – Enhancements that provide greater flexibility and control when defining constraints.
• More reusable libraries – Improvements that make it easier to create practical, reusable PSS libraries that can be shared across projects and teams.
• Greater control over generated target code – New capabilities that give models more control over what is produced for target implementations.
• Address spaces and registers – Updates that close gaps and strengthen modeling capabilities in the address and register layer.

The public review provides an opportunity for the industry to evaluate the specification and provide feedback before it is finalized. The Portable Stimulus Working Group invites comments and feedback through its Community Forum.

The document is available for download at Accellera's Drafts Under Public Review page. The public review period is open until September 30, 2026. For more information about PSS and the development of the standard, visit the Portable Stimulus Working Group page.

 

PSS Training Session 10 Now Available!

In Session 10 of Accellera’s “Learning PSS” video series, Tom Fitzpatrick, PSS expert and charter member of Accellera’s Portable Stimulus Working Group, explores PSS randomization and inferencing and how they work together to generate valid verification scenarios.

Learn how the PSS solver uses constraints and data flow requirements to randomize model elements, infer additional actions when needed, and generate multiple legal scenarios from a single PSS model.

Watch Session 10 to learn how randomization, constraints, inferencing, and data flow work together to turn PSS verification intent into executable scenarios. Then continue the your Learning PSS journey with the upcoming Session 11, covering PSS memory allocation.

For details about PSS and other resources, visit the Portable Stimulus Working Group page.

View Session 10 >
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Accellera Releases CDC/RDC Standard 1.0

The Standard for IP Abstraction for Clock and Reset Domain Crossing (CDC/RDC) Integration 1.0 is now available for download. The new standard defines a vendor‑neutral approach to capture CDC/RDC intent to enable efficient CDC/RDC signoff for IP providers and SoC integrators across the EDA vendor ecosystem. Read the full press release >

Download the CDC/RDC standard >

View quotes of support from member companies >