Patent 7484148 was granted and assigned to Analog Devices on January, 2009 by the United States Patent and Trademark Office.
An interface error monitor system for monitoring data exchanged between a controller and a data converter over an interface includes a multi-stage linear feedback shifter register associated with the data converter for generating a pseudo random number sequence; a signature generating circuit responsive to data exchanged between the controller and data converter for altering the pseudo random number sequence generated by the linear feedback shifter register to create a signature of the data.