Circuits, systems and methods for dynamic reference voltage calibration

10) An integrated circuit, comprising:

• a first contact to receive a plurality of voltage values;
• logic, coupled to the first contact, to provide an adjustment signal in response to a comparison of a test value in a plurality of test values and a voltage value in the plurality of voltage values;
• and
• a register, coupled to the logic, to output a control signal indicating an adjustment to an internal reference voltage value in response to the adjustment signal.

17) An integrated circuit, comprising:

• a first contact to provide a plurality of voltage values;
• logic, coupled to the first contact, to provide an adjustment signal in response to a comparison of a test value in a plurality of test values and a voltage value in the plurality of voltage values;
• and,
• a register, coupled to the logic, to output a control signal indicating an adjustment to an external reference voltage value in response to the adjustment signal.

23) An integrated circuit, comprising:

• a first contact to transmit a plurality of voltage values;
• a first logic, coupled to the first contact, to provide a target reference voltage value on a first signal line responsive to a comparison of a test value in a plurality of test values and a voltage value in the plurality of voltage values;
• a second logic to output a control signal;
• a comparator, coupled to the first signal line and a second signal line that provides a reference voltage value, to provide an input signal to the second logic in response to the target reference voltage value and the reference voltage value;
• a first voltage source coupled to a resistor;
• and
• a second voltage source coupled to a variable resistor to provide a resistance value in response to the control signal.

27) A method, comprising:

• obtaining a first voltage from a first contact;
• obtaining a second voltage from a second contact;
• calculating a first voltage value representing a target voltage in response to the first and second voltages;
• outputting a control signal in response to the first voltage value;
• adjusting a reference voltage value in response to the control signal;
• and
• transferring data using the reference voltage value.

32) A method, comprising:

• obtaining a first voltage value from a first contact;
• obtaining a test value from a plurality of test values;
• comparing the first voltage value to the test value;
• calculating a second voltage value representing a target reference voltage in response to the comparing;
• outputting a control signal in response to the second voltage value;
• adjusting a reference voltage value in response to the control signal;
• and
• transferring data using the reference voltage value.

40) Machine-readable media including information that represents an apparatus, the represented apparatus comprising:

• a first contact to receive a plurality of voltage values;
• logic, coupled to the first contact, to provide an adjustment signal in response to a comparison of a test value in a plurality of test values and a voltage value in the plurality of voltage values;
• and
• a register, coupled to the logic, to output a control signal indicating an adjustment to an internal reference voltage value in response to the adjustment signal.