ASYNCHRONOUS COMMUNICATIONS TECHNIQUE

摘要

A main processor manages serial communication with one or more external devices by establishing the requisite tasks needed for serial communications. For example, these tasks can include (1) serial device handling, (2) protocol encapsulation, and (3) low-level communication with external devices. A priority is assigned to each of the tasks so that timing requirements are met, while maximizing processor efficiency of the main processor. Upon its completion, each lower priority task initiates execution of a next higher priority task to synchronize data processing with data communication.