Title :
Partially detectable faults in synchronous sequential circuits
Author_Institution :
Electr. Eng. Dept., Univ. of Botswana, Gaborone, Botswana
Abstract :
Faults in sequential circuits are studied. Undetectable and redundant faults under different modes of operation are analysed. Undetectable faults are split into two classes: operationally redundant faults and partially redundant faults. Operationally redundant faults are defined as faults that are never manifested as faulty output during normal operation. Partially redundant faults are defined as faults that can affect the output sequence under certain initial conditions otherwise it is undetectable. Faults in sequential circuits are, accordingly, classified into three classes: detectable, partially detectable and operationally redundant. Test generation strategies and the relation between test sequences under different modes of operation are analysed
Keywords :
fault diagnosis; logic testing; sequential circuits; synchronisation; detectable faults; initial conditions; operationally redundant faults; output sequence; partially detectable faults; partially redundant faults; synchronous sequential circuits; test generation; test sequences; undetectable faults; Circuit faults; Circuit testing; Combinational circuits; Electrical fault detection; Fault detection; Fault diagnosis; Redundancy; Sequential analysis; Sequential circuits; Synchronous generators;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.562992
