Decoding failure management

摘要

Systems, methods, and other embodiments associated with decoding codewords are described. According to one embodiment, a read channel includes a set of memories and a decoding logic. The set of memories is configured to decode a plurality codewords. At least one memory is classified as an inactive memory for use when a failure occurs. The remaining memories of the set of memories are classified as active memory for decoding. The decoding logic is configured to decode the plurality of codewords using the active memory of the set of memories. When the decoding logic fails to decode a codeword, which is stored in a memory of the active memory, resulting in a failed codeword, the memory of the active memory is reclassified as a memory of the inactive memory.

主权项

1. A read channel, comprising:
a set of memories configured to decode a plurality codewords, wherein at least one memory is classified as an inactive memory for use when a decoding failure occurs, and wherein remaining memories of the set of memories are classified as active memory for decoding; and a decoding logic configured to:
decode the plurality of codewords using the active memory of the set of memories, andwhen the decoding logic fails to decode a codeword resulting in a failed codeword, wherein the codeword is stored in a memory of the active memory:
reclassify the memory of the active memory as a memory of the inactive memory, wherein the failed codeword is stored in the memory of the inactive memory until additional decoding of the failed codeword is able to be performed.