On the use of Ring LFSR based BIST for detection, identification and localization of static and dynamic faults in interconnects
Andrzej Hławiczka, Krzysztof Gucwa, Tomasz Garbolino · Theoretical and Applied Informatics · 2009
In the paper a method of the fault detection, identification and localization by means of a ring Linear Feedback Shift Register (LFSR) is presented. The properties of a ring LFSR and the method to design a ring LFSR based Built-In-Self Test (BIST) is also given. Practical examinations of a ring LFSR application for localization faults in 8-,16-,24- and 32-bit buses are presented. Some important observations regarding the types of characteristic polynomials used in ring LFSRs are also included. Finally, the obtained results are summarised.