Pipelined Feed-Forward Cyclic Redundancy Check (CRC) Calculation
Abstract
This paper discusses a method for pipelining the calculation of CRC's, such as ITU/CCITT CRC32, into a mostly feed-forward architecture. This method allows several benefits such as independent scaling of circuit frequency and data throughput. Additionally it allows calculation over packet tails (packet length not a multiple of CRC input width). Finally it offers the ability to update a CRC where a subset of data in the packet has changed.
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