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Archive for July 3rd, 2014

Static Verification Leads to New Age of SoC Design

Thursday, July 3rd, 2014

SoC companies are coming to rely on RTL sign-off of many verification objectives as a means to achieve a sensible division of labor between their RTL design team and their system-level verification team. Given the sign-off expectation, the verification of those objectives at the RT level must absolutely be comprehensive.

Increasingly, sign-off at the RTL level can be accomplished using static-verification technologies. Static verification stands on two pillars: Deep Semantic Analysis and Formal Methods. With the judicious synthesis of these two, the need for dynamic analysis (a euphemism for simulation) gets pushed to the margins. To be sure, dynamic analysis continues to have a role, but is increasingly as a backstop rather than the main thrust of the verification flow. Even where simulation is used, static methods play an important role in improving its efficacy.

Deep Semantic Analysis is about understanding the purpose or role of RTL structures (logic, flip-flops, state machines, etc.) in a design in the context of the verification objective being addressed. This type of intelligence is at the core of everything that Real Intent does, to the extent that it is even ingrained into the company’s name. Much of sign-off happens based just on the deep semantic intelligence in Real Intent’s tools without the invocation of classical formal analysis.

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