Design For Testability Properties of AND/XOR Networks

AND XOR networks include all realizations of switching functions in two and multi level which in clude AND XOR and inverters as basic building blocks It has been shown that for many AND XOR canonical networks and trees the test set to detect stuck at faults and bridging faults are independent of the function being realized This paper provides a survey of these studies and introduces certain results on some other AND XOR Networks Here a scheme for reduction of tests on canonical mixed polarity AND XOR networks is introduced which can be ex tended to other general mixed polarity networks In addition the independence of test sets for Consistent Generalized Reed Muller trees is presented