Apparatuses and methods for encoding and decoding of signal lines for multi-level communication architectures

A method comprising:

• receiving a plurality of multilevel signals including a first multilevel signal and a second multilevel signal;
• providing a plurality of output signals based on a first reference voltage and a second reference voltage responsive to any multilevel signal of the plurality of multilevel signals, including:
• providing a first output signal and a second output signal based on the first reference voltage and the second reference voltage respectively, responsive to the first multilevel signal;
• providing a third output signal and a fourth output signal based on the first reference voltage and the second reference voltage respectively, responsive to the second multilevel signal;
• and
• providing a plurality of bitstreams responsive to the first, second, third and fourth output signals,
• wherein the plurality of bitstreams that are greater in number than the plurality of multilevel signals.

A method, comprising:

• converting a plurality of bitstreams into a plurality of multilevel signals by a driver circuit;
• driving the plurality of respective multilevel signals onto a plurality of respective signal lines by the driver circuit,
• wherein the plurality of multilevel signals have more than two signal levels, and
• wherein a number of the plurality of bitstreams is greater than a number of the multilevel signals.