APPARATUS AND METHOD FOR MONITORING SERIAL COMMUNICATION LOADS IN SERIAL COMMUNICATION SYSTEM

摘要

PURPOSE: An apparatus and a method for monitoring serial communication loads in the serial communication system are provided to calculate a load rate of data for serial line seizure during unit time using communication clocks and to discriminate and report overload status using a measurement cycle and an overload critical value. CONSTITUTION: A start and end sensor(1) generates a sense signal for a data interval, sensing the beginning and end of the data interval in a signal inputted and outputted in serial. A clock counter(2) counts the quantity of communication clocks for unit time. A data counter(3) counts the quantity of the communication clocks required in the data interval. A division operator(4) divides a count value of the data counter(3) by a count value of the clock counter(2) and calculates a data load rate of unit time. A comparator(5) outputs an overload status notification signal, comparing the data load rate and an overload setting value. A report controller(6) reads the overload status notification signal of the comparator(5). A timer(7) counts timer clocks and outputs a time-out signal.