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Drift tracking feedback for communication channels

  • US 7,526,664 B2
  • Filed: 11/15/2006
  • Issued: 04/28/2009
  • Est. Priority Date: 03/17/2004
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a memory chip including an array of dynamic memory cells; and

    a controller chip coupled to the memory chip, the controller chip including;

    a first receiver to receive an incoming strobe signal provided by the memory chip;

    a first transmitter to transmit an outgoing strobe signal to the memory chip;

    a second transmitter to transmit data to the memory chip in response to a transmit clock signal;

    a first register to store a value that represents a transmit phase to apply to the transmit clock signal, wherein the transmit phase is based on a detected phase of the outgoing strobe signal.

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