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Cutting Metastability Using Aperture Transformation
September 2004 (vol. 53 no. 9)
pp. 1200-1204
Aperture transformation reduces metastability by trading unsafe edge arrival times with control signal metastability. We improve this further by providing 1) a new runt-free Schmitt trigger-based hardening technique using a controlled clock signal and 2) a new detection/compensation technique that overwrites controlled-clock metastability using set&clear controls.

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Index Terms:
Metastability, synchronizer, aperture, runt, metastable detection, hardening, Schmitt trigger.
Pradeep Varma, B.S. Panwar, K.N. Ramganesh, "Cutting Metastability Using Aperture Transformation," IEEE Transactions on Computers, vol. 53, no. 9, pp. 1200-1204, Sept. 2004, doi:10.1109/TC.2004.59
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