Method for setting a termination voltage and an input circuit

A method for setting a termination voltage of an input circuit of an integrated circuit, comprising:

• comparing one or more signal levels of a received signal against one or more assessment potentials;
• generating a control signal based on a comparison of the one or more signal levels of the received signal and the one or more assessment potentials;
• and
• setting the termination voltage according to the control signal,
• wherein the comparison determines whether a high level potential of the received signal lies above a high potential threshold prescribed by a high assessment potential, and
• wherein the termination voltage is increased by the control signal if the high level potential of the received signal lies below the high potential threshold.

An input circuit for an integrated circuit, comprising:

• an analysis unit connected to receive one or more signal levels of a received signal and to provide a control signal to the control unit, wherein the analysis unit compares the one or more signal levels of a received signal against one or more assessment potentials and generates a control signal based on a comparison of the one or more signal levels of the received signal and the one or more assessment potentials;
• a control unit for setting a termination voltage to an input terminal of the input circuit according to the control signal provided from the analysis unit;
• a first resistor chain having a first resistor and one or more second resistors;
• and
• a second resistor chain having a third resistor and one or more fourth resistors;
• wherein the first and second resistor chains are connected in series between a high supply potential and a low supply potential;
• wherein the termination voltage is tapped off between the first and second resistor chains;
• and
• wherein the control unit is configured to short-circuit the one or more second resistors and the one or more fourth resistors according to the control signal to set the termination voltage.

An input circuit for an integrated circuit, comprising:

• an analysis means for receiving one or more signal levels of a received signal and for providing a control signal to the control unit, wherein the analysis unit compares the one or more signal levels of a received signal against one or more assessment potentials and generates a control signal based on a comparison of the one or more signal levels of the received signal and the one or more assessment potentials;
• a control means for setting a termination voltage to an input terminal of the input circuit according to the control signal provided from the analysis means;
• a first resistor means and a second resistor means connected in series between a high supply potential and a low supply potential;
• wherein the termination voltage is tapped off between the first and second resistor means;
• and
• wherein the control means is configured to change one or more resistance values of the first and second resistor means according to the control signal to set the termination voltage.