Method and apparatus for periodically retraining a serial...

Details Method and apparatus for periodically retraining a serial... Method and apparatus for periodically retraining a serial...

2007-04-24

2007-04-24

Starks, Jr., Wilbert L. (Department: 2129)

Data processing: artificial intelligence

Neural network

Learning task

C706S045000, C706S047000

Reexamination Certificate

active

10877355

ABSTRACT:
A method and apparatus for retraining skew compensation in an interface is presented. In one embodiment, a retraining interval is determined, and counters in the transmitting agent and receiving agent count up until the retraining interval is reached. A tracking unit used to select one of several interpolated clocks may then be powered up, and a special retraining phit may be sent across the interface. During the retraining process, the transfer of flits into and out of the flow-control mechanism may be inhibited. When the retraining process is finished, the tracking unit may be powered down.

REFERENCES:
patent: 5701416 (1997-12-01), Thorson et al.
patent: 2005/0027880 (2005-02-01), Emmot
patent: 2005/0286567 (2005-12-01), Cherukuri et al.
patent: 2006/0041696 (2006-02-01), Cherukuri et al.

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