System-Level Design
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Comprehensive CDC Verification Using Advanced Hierarchical Data Models

How to speed up clock domain crossing verification.

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In this paper, we describe the hierarchical data model (HDM), which is a performance efficient alternative to the traditional flat CDC verification flow. The HDM is equivalent to an abstract CDC model of the IP that captures the CDC intent of the block along with its integration rules. It is a generic data model that can be seamlessly re-used across releases and across designs wherever the IP is re-used and is the backbone of the Questa CDC hierarchical verification solution.

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