Intel Corporation

Paul J Weldon

Henning Lysdal

Bradley John Booth

Mark T Feuerstraeter

An apparatus and method for automatically detecting the port type of a remote device are disclosed. One embodiment of the apparatus includes a data rate detection unit to sample a data rate from an incoming data signal. A first frequency configuration unit is operatively coupled with the data rate detection unit to receive a detected data rate from the data rate detection unit. The apparatus also includes an oscillator to generate a plurality of reference clock frequencies. A frequency selector unit is coupled with the oscillator to select one of the reference clock frequencies. A phase lock unit to phase lock the incoming data signal is coupled with the first frequency configuration unit. A data rate select output is coupled with the first frequency configuration unit to operatively link the first frequency configuration unit with a second frequency configuration unit of a remote device.

Method and apparatus for autosensing LAN vs WAN to determine port type

A clock divider and method is disclosed for generating an output clock signal having a frequency that is a fractional or integral multiple of a reference clock signal frequency. In one embodiment, the clock divider divides a clock signal by a first divisor in a first period and by a second divisor in a second period, where the second period following the first period. The clock divider circuit is triggered by a first edge of the clock signal and generates a first signal. A synchronizing circuit is coupled to the clock divider to generate a second signal from the first signal, the second signal being synchronized by a second edge of the clock signal, where the second edge is in a direction opposite to the first edge. A selector is coupled to the synchronizing circuit and the clock divider to generate an output signal by selecting the first signal and the second signal alternately between the first period and the second period.

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Copenhagen, Denmark

Paul J Weldon