Encoding and decoding apparatuses and methods for implementing multi-mode coding

An apparatus comprising:

• a receiver connected to a data bus,
• wherein the receiver comprises a decoder configured to receive codewords comprising a plurality of symbols through the data bus, and recover data bursts from the received codewords, and
• wherein the decoder comprises a logic circuit representing correlations between the codewords and the data bursts, wherein the logic circuit comprises codeword mappings related to operation requirements of the decoder, wherein the operation requirements of the decoder comprise a maximum transition avoidance (MTA) requirement between the plurality of symbols and a minimum DC current (MDC) requirement related to minimum power consumption of the plurality of symbols;
• and
• a decoding circuit configured to determine whether a current codeword among the codewords received by the decoder is an inverted codeword, and recover a data burst from the current codeword using lookup tables, wherein the codewords are modulated using a pulse amplitude modulation (PAM) modulation scheme.