ERROR DETECTING DEVICE FOR A SELF DIAGNOSIS OPERATION PROCESSING DEVICE BASED ON EXPANDED ERROR DETECTION CODES AND AN OPERATION PROCESSING SYSTEM INCLUDING AN ERROR DETECTION DEVICE CAPABLE OF MINIMIZING ERROR DETECTION TIME

摘要

PURPOSE: An error detecting device for a self diagnosis operation processing device based on expanded error detection codes and an operation processing system including an error detection device are provided to perform self diagnosis to a code generation error or an operation error of an operation processing circuit by generating an error detection signal.;CONSTITUTION: A first EDC(Error Detection Coding) check circuit(100a) receives EDC and binary output data from an operation processing circuit and outputs a first error detection signal. A second EDC check circuit(100b) receives the EDC and the binary output data and outputs a second error detection signal. EDC check circuits output an error detection signal of one bit regardless of the length of the EDC and the output data and determine the error generation of the error detection code according to a combination of the first and the second error detection signals.;COPYRIGHT KIPO 2013