| 摘要 |
A system for generating CRC code words associated with data ranging up to w-bytes in width to be communicated over a communications channel includes a first plurality of serially coupled code-generation blocks each for generating a CRC value based on data input to each block, respective blocks of the first plurality configured for receiving data inputs having respective byte widths ranging from 2<SUP>N</SUP>+M to 2<SUP>N-L</SUP>+M, where N is equal to log<SUB>2</SUB>(w), and M is an offset value, and L is a whole number based on a maximum propagation delay criteria; a second plurality of parallel coupled code-generation blocks each for generating a CRC value based on data inputs, respective blocks of the second plurality configured for receiving data having respective byte widths ranging from 2<SUP>N-L</SUP>-1+M to 2<SUP>0</SUP>; and, a device for selecting particular CRC code generation blocks in the first and second pluralities to be included in a CRC calculation based on the data input; wherein any number of data input bytes may be processed.
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