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Network processors are programmable, highly integrated communications circuits optimized to provide processing at high data and packet rates. The packet instruction set computer (PISC) architecture is a synchronous dataflow architecture developed for network processors. It uses a deep pipeline that contains two types of processing elements: PISC processors, which perform programmable data manipulation, and I/O processors, which provide access to shared resources such as look-up table memory, hardware accelerators, or coprocessors.
Date of Publication: Sept.-Oct. 2004