Verifying the evolving UCIe landscape
A UCIe 3.0-aware architecture for manageability and beyond
This paper details a verification strategy for UCIe 3.0 designs, integrating both legacy manageability architecture and emerging UCIe 3.0 features into a reusable, scalable framework. Built on a layered UVM architecture, Questa One™ Avery™ VIP for UCIe enables flexible modeling of complex domains through configurable APIs and supports automated discovery and routing table set up for both direct and indirect management paths. With integrated debug hooks, exhaustive protocol checkers, traceability mechanisms, and topology-agnostic test scenarios, Avery UCIe VIP ensures functional correctness and architectural compliance. The architecture imposes no constraints on the DUT, enabling verification of any component within the management domain. Additionally, Avery UCIe VIP is equipped to handle the new demands introduced by UCIe 3.0, ensuring readiness for next-generation chiplet systems.
UCIe 3.0 verification solutions
With the release of UCIe 3.0, the specification expands support for next-generation performance and robustness. While UCIe 2.0 introduced the manageability architecture, UCIe 3.0 pushes the envelope with performance-driven and system-level enhancements that directly affect verification demands.
The UCIe 3.0 architecture extends its reach to cover emerging challenges introduced by higher speed modes, runtime recalibration, priority-based sideband transport, sideband power down during L2, and buffer-based MTP handling. These enhancements are fully integrated into the Avery VIP and CTS, ensuring continued coverage and protocol correctness as the standard evolves.
This paper proposes a verification architecture combining the depth of UCIe 2.0 manageability validation along with next-generation UCIe 3.0 features in realistic multi-die environments. Coupled with the Test Suite Configurator, which enables targeted CTS generation, and the integrated Questa One Verification IQ Regression Navigator and Questa One Verification IQ Coverage Analyzer, this environment ensures fast feedback, coverage-driven closure, and efficient debug.