A circuit, system and method adjusts a reference voltage, such as an internal or external reference voltage VREF, in response to a first voltage at a first contact, such as a pin on a memory controller used for reading or writing data, and a second voltage at a second contact in embodiments. Logic is...http://www.google.de/patents/US20060142977?utm_source=gb-gplus-sharePatent US20060142977 - Circuits, systems and methods for dynamic reference voltage calibration