Fault tolerance requires the inclusion of redundant information. In this paper an on-line error detecting adder is presented in which the redundant information serves a dual purpose. It provides fault tolerance during the arithmetic operations while also providing a method by which addition is constrained to become a constant delay operation regardless of the word size of the operands.
Citation:
Whitney J. Townsend, Jacob A. Abraham, Parag K. Lala, "On-Line Error Detecting Constant Delay Adder," iolts, pp.17, 9th IEEE International On-Line Testing Symposium, 2003