From false alarms to real insights: Refining RDC to catch missed STA scenarios

The increasing complexity of modern SoC architectures, combined with the widespread use of multiple asynchronous resets, has made reset domain crossing (RDC) verification indispensable for ensuring design reliability. While RDC verification tools are essential for catching operational risks, they often overwhelm design teams with excessive false violations. A large portion of these violations are reported when transmitter and receiver registers reside in different asynchronous reset domains, however, many such cases, in practice, can often be validated sufficiently through static timing analysis (STA), rather than being treated as functional hazards. This work introduces a refined verification methodology that leverages intelligent filtering and classification to separate true hazards from safe crossings. By cutting through the noise, the approach not only reduces verification effort but also shortens closure time, enabling faster, more confident sign-off. Ultimately, this work demonstrates how smarter RDC verification can transform a traditionally tedious process into an efficient and reliable path to design quality.