Title :
Cutting metastability using aperture transformation
Author :
Varma, Pradeep ; Panwar, B.S. ; Ramganesh, K.N.
Author_Institution :
IBM India Res. Lab., New Delhi, India
Abstract :
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.
Keywords :
clocks; logic circuits; synchronisation; trigger circuits; aperture transformation; control signal metastability; controlled clock signal; metastable detection; runt-free Schmitt trigger-based hardening technique; Apertures; Clocks; Context modeling; Delay; Feedback loop; Inverters; Metastasis; Sampling methods; Synchronization; Trigger circuits; 65; Index Terms- Metastability; Schmitt trigger.; aperture; hardening; metastable detection; runt; synchronizer;
Journal_Title :
Computers, IEEE Transactions on
