MEMORY CONTROLLER, COMPUTING DEVICE WITH A MEMORY CONTROLLER, AND METHOD FOR CALIBRATING DATA TRANSFER OF A MEMORY SYSTEM

A memory controller comprises a connection interface connected or connectable to a memory. The memory controller is arranged to read data from the memory via the connection interface The memory controller further comprises a clock unit arranged to provide a data transfer clock signal having a first...

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Bibliographische Detailangaben
Hauptverfasser: BEATTIE DEREK, SAKALLEY DEBOLEENA, PANDEY RAKESH
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A memory controller comprises a connection interface connected or connectable to a memory. The memory controller is arranged to read data from the memory via the connection interface The memory controller further comprises a clock unit arranged to provide a data transfer clock signal having a first frequency. The data transfer clock signal may be provided to the memory via the connection interface The data transfer clock signal is arranged for clocking a data transfer from the memory to the memory controller via the connection interface as well as an oversampling circuit arranged to sample a calibration data pattern read by the memory controller via the connection interface at a second frequency to provide an over-sampled calibration data pattern. The second frequency is larger than the first frequency. The memory controller is arranged to determine a timing shift of a data transfer from the memory to the memory controller based on the oversampled calibration data pattern.