Method, apparatus, system for centering in a high performance interconnect

An system, comprising:

• a first agent;
• a second agent;
• and
• an interconnect to communicatively couple the first agent to the second agent, comprising:
• a clock signal generator to generate a clock signal;
• a reference voltage shifter to:
• shift a reference voltage of the clock signal by a first test voltage at an operational speed of the interconnect;
• and
• shift the reference voltage by a second test voltage;
• an error rate detector to:
• measure an error rate of the first test voltage;
• compare the error rate of the first test voltage to an error rate of the second test voltage;
• and
• select an optimal test voltage;
• and
• an operational voltage selector to select an operational reference voltage of the clock signal based at least in part on the optimal test voltage.

One or more tangible, non-transitory computer-readable storage mediums having stored thereon executable instructions to:

• generate a clock signal;
• shift a reference voltage of the clock signal by a first test voltage at an operational speed of the interconnect;
• shift the reference voltage by a second test voltage;
• measure an error rate of the test voltage;
• compare the error rate of the first test voltage to an error rate of the second test voltage and to select an optimal test voltage;
• and
• select an operational reference voltage of the clock signal based the optimal test voltage.