Patent ID: 8896341

Claim:
An integrated circuit device comprising: at least one calibration module for calibrating an impedance of at least one on-die interconnect line driver in order to adaptively match an impedance between the at least one on-die interconnect line driver and at least one on-die interconnect line conjugated thereto, the at least one calibration module being arranged to receive an indication of an output signal of the at least one interconnect line driver, to compare the received indication of the output signal to a reference signal, and to detect at least one from a group consisting of: a presence of a voltage overshoot of the output signal of the at least one interconnect line driver, and upon said presence detection to cause a power supply of the at least one line driver to be decreased; and an absence of a voltage overshoot of the output signal of the at least one interconnect line driver, and upon said absence detection to cause the power supply of the at least one line driver to be increased.