COMMUNICATION SYSTEM UTILIZING PICO-PROCESSOR FOR EXECUTING COMPOSITE FUNCTION AT OUTSIDE OF MAIN COMMUNICATION DATA PATH AND DATA PROCESSING METHOD

摘要

PURPOSE: To provide a communication system using a pico processor to execute a composite function at the outside of a main communication data path. CONSTITUTION: In a communication system for data transmission, a coupler (32) having one or two pico processors (50, 72) or over located logically at the outside of a main data path is used to execute a calculation and control function in a form of being separated from the main data path or isolated therefrom. The main data path is continuously in use in parallel by using the plural pico processors to conduct buffer management and high performance buffer chaining process at the outside of the main data path. Thus, the function and task to be a load into the main system processor are relieved and undesired communication amount is eliminated from the main data path, then the data transfer efficiency is improved.