Title :
A study of faulty signatures using a matrix formulation
Author :
Chan, John C. ; Abraham, Jacob A.
Author_Institution :
IBM Corp., Austin, TX, USA
Abstract :
The authors describe a novel matric method of analyzing faulty signatures from both single-input and multiple-input signature registers (MISRs). In particular, the information contained in the faulty signature of an MISR is investigated. The results indicate that the proposed method can be used to locate the faulty cycle or channel(s) of the failing net. The formulation has the advantage of simplicity over the polynomial representation and can be used to determine the relation between an error and its syndrome. The results provide new insights into the application of MISRs to built-in self-test
Keywords :
automatic testing; built-in self test; logic testing; matrix algebra; built-in self-test; error; faulty cycle; faulty signatures; matrix formulation; multiple-input signature registers; single-input signature register; Automatic testing; Error correction; Fault diagnosis; Feedback; Jacobian matrices; Polynomials; Registers;
Conference_Titel :
Test Conference, 1990. Proceedings., International
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-9064-X
DOI :
10.1109/TEST.1990.114067
