Error Detection Capabilities in Microprocessor
Original Publication Date: 1980-Mar-01
Included in the Prior Art Database: 2005-Feb-13
Present-day microprocessors do not generally include error detection capability in their logic circuits. When used in a system environment, therefore, the error detection function must be added or externally enhanced to raise the microprocessor-implemented system reliability to an acceptable level. The normal means for increasing system reliability is to provide parity check and redundancy with the CFU logic, in this case the microprocessor. However, this approach requires an increase of the microprocessor's internal logic which is difficult to arrange due to a lack of silicon area which is needed for the microprocessor functions.