Patent ID: 6496506
Filing Date: 2002-12-17
Classification: H04L

Abstract:
An address fault monitoring device for monitoring faults associated with occurrence of floating addresses which are unusable addresses, comprising:data storing means for storing data transmitted thereto; write control means for controlling writing of the data with respect to said data storing means and notifying a read control side of write address information including information on a write address; read control means for controlling reading of the data with respect to said data storing means and notifying said write control means of read address information including information on a read address; floating address measuring means for counting the number of the floating addresses by means of hardware, said floating address measuring means reckoning the write address or the read address as the floating address if transmission error occurs during transmission of the write address information or the read address information; and fault notifying means for monitoring the counted number of the floating addresses to determine whether or not the counted number is greater than a preset threshold, and making notification of fault if the counted number has become greater than or equal to the preset threshold.