Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances...http://www.google.es/patents/US7525338?utm_source=gb-gplus-sharePatente US7525338 - Calibration methods and circuits for optimized on-die termination
Calibration methods and circuits for optimized on-die termination