Mechanism to adjust a clock signal based on embedded clock information

An apparatus, comprising:

• a front amplifier to receive data from an input/output link driven by a remote clock signal;
• an interpolator to generate a local clock signal to track the remote clock signal embedded in the data;
• and
• a tracking unit to compare phase information about the remote clock signal and the local clock signal and to dynamically adjust the phase of the local clock signal based on the comparison,
• wherein the tracking unit is configured to dynamically adjust the phase by generating phase shift signals based on the phase comparisons during a time interval.

A method, comprising:

• tracking indications received from a phase comparator unit;
• determining a majority of indications received during a window time unit interval;
• and
• issuing a phase shift signal based on the majority of indications occurring during the window time unit interval.

A system, comprising:

• a transmitting device;
• and
• a receiving device connected to the transmitting device by a data line, the receiving device further comprising
• a phase comparator to generate indications based phases of a local clock signal and transitions in a stream of received data;
• an electoral loop filter to generate a phase shift signal based on indications received from the phase comparator in a time interval;
• and
• a local clock controller to adjust the local clock signal based on the phase shift signal generated from the electoral loop filter.