Wrapper Design for Testing IP Cores with Multiple Clock Domains

  • Authors:
  • Qiang Xu;Nicola Nicolici

  • Affiliations:
  • -;-

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe - Volume 1
  • Year:
  • 2004

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Abstract

This paper addresses the testability problems raised by embedded cores with multiple clock domains. The proposed solution, based on a novel core wrapper architecture, shows how multi-frequency at-speed test response capture can be achieved using low-speed testers synchronized with high-speed on-chip generated clocks. Using experimental data, the trade-offs between the number of tester channels, testing time, area overhead and power dissipation are discussed.