CIRCUIT FOR CALCULATING CRC OF ATM CELL HEAD

摘要

The cyclic redundancy code (CRC) calculating circuit includes first and second 8-bit flip flops for retiming input and output data, an exclusive OR circuit for generating a next 8-bit register value for CRC calculation, an 8-bit register for latching data for CRC generation, a select circuit for inserting a CRC into a transfer data stream, and a delay circuit for supplying a control signal to the select circuit, thereby providing useful CRC calculation for high-speed data.