Approach to directly performing asynchronous transfer mode...

Details Approach to directly performing asynchronous transfer mode... Approach to directly performing asynchronous transfer mode...

H - Electricity

04

L

H04L 12/56 (2006.01) H04L 1/00 (2006.01) H04L 12/26 (2006.01)

Patent

CA 2152567

A method of transferring data from an ATM (asynchronous transfer mode) physical device to an application specific circuit (ASIC) comprised of receiving a continuous stream of ATM cells from the ATM physical device, identifying a virtual circuit from a header of each cell, providing an identification (address) of the virtual circuit to an output for reception by the ASIC, providing a continuous stream of payload contents of each cell received from the ATM physical device directly to an output for reception by the ASIC, calculating a cyclic redundancy check (CRC) on data carried by cells forming each packet for each to virtual circuit address and providing an indication to the ASIC of invalid data relating to a packet having a particular virtual circuit in the event the CRC is indicative that data in a packet is incorrect.

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