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Assertions are just the tip of the low-power verification iceberg. (Yep: iceberg + low-power +melting chips = metaphorical mayhem!) Kidding aside, in the article, both Erich Marschner from Mentor and I cite the breadth of issues facing complex, multi-domain power-aware chips. We agree that assertions are a simple starting point for designers to outline their power intentions for the verification team to verify. In the Cadence Incisive solution, we take it a step further by generating the power assertions directly from the power-format file.
But as we said, that’s just the start. Teams with power-aware designs should be running low-power in every regression test because any one of those tests could trigger a change in power-state and the simulator should respond appropriately. Doing so will also make it easier to verify the power-aware aspects of the verification plan. With Incisive, you can also generate verification plans from your power-format file and collect coverage to gain a better understanding of the quality of your power-aware circuits. To learn more about this, please attend John Decker’s upcoming “How to Avoid Low-Power Failures” webinar on April 4.
So whether you’re facing the risk of a melting 40nm chip or just trying to differentiate your product by making it power aware, consider low-power assertions as the first step toward a comprehensive low-power verification methodology.
=Adam “keep it cool” Sherer, Cadence Product Director