Abstract: An apparatus generally including a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) receive a configuration signal that identifies a current one of a plurality of communications standards and (ii) generate a plurality of matrix elements based on the configuration signal. The second circuit may include a plurality of matrixes. The second circuit may be configured to (i) fill the matrixes with the matrix elements and (ii) generate an encoded signal by forward error correction encoding an input signal using the matrixes. The encoded signal generally complies with the current communications standard.

Abstract: An apparatus having a first circuit, a second circuit and a third circuit is disclosed. The first circuit may be configured to generate a plurality of load values corresponding to a trellis of a decoding process. The second circuit generally includes a plurality of calculation layers. The calculation layers may be configured to generate a plurality of maximum values in response to the load values. The third circuit may be configured to generate a plurality of L-values of the decoding process in response to the maximum values.

Abstract: An apparatus generally including a memory and a circuit is disclosed. The memory may be configured to store a plurality of instructions. Each of the instructions generally includes a corresponding command and a corresponding command repeat count. At least one of the instructions may include a subprocedure call. The circuit may be configured to (i) decode the instructions one at a time and (ii) present a sequence of the commands at an interface. The sequence (i) may be based on the decoding and (ii) may have no delays between consecutive the commands at the interface.

Abstract: An apparatus generally having a port, a first circuit and a second circuit is disclosed. The port may be configured to receive a current length of a codeword. The current length may be less than a maximum length of the codeword that the apparatus is designed to decode. The first circuit may be configured to calculate in parallel (i) a sequence of intermediate syndromes from the codeword and (ii) a sequence of correction values based on the current length. The second circuit may be configured to generate a particular number of updated syndromes by modifying the intermediate syndromes with the correction values. The particular number is generally twice a maximum error limit of the codeword.