Title :
Totally Self Checking reconfigurable duplication system with separate internal fault indication
Author :
Gaitanis, Nikolaos ; Kostarakis, Panagiotis ; Paschalis, Antonis
Author_Institution :
Inst. of Inf. & Telecommun., Athens, Greece
Abstract :
A Totally Self Checking (TSC) reconfigurable duplication system with respect to single cell fault model is described in this paper. It consists of two identical functional self checking units that receive the same inputs. TSC checkers are associated with each functional unit and produce either a normal indication when the output is correct or an error indication when the output is incorrect. The circuit that receives the indications of the two TSC checkers is a TSC decision circuit that produces two indication outputs E and F, respectively. E indicates mainly the status of the outputs of units while F indicates the existence of internal faults in the TSC decision circuit. Such indications can be used for the non stop repair before redundancy is exhausted. Thus continuous operation is preserved increasing the availability and the reliability of the system
Keywords :
built-in self test; decision circuits; fault diagnosis; logic testing; reconfigurable architectures; redundancy; switching circuits; decision circuit; error indication; functional self checking units; indication outputs; nonstop repair; reconfigurable duplication system; redundancy; separate internal fault indication; single cell fault model; totally self checking system; Circuit faults; Circuit testing; Detectors; Electrical fault detection; Fault detection; Fault tolerant systems; Informatics; Redundancy; Signal generators; Switching circuits;
Conference_Titel :
Test Symposium, 1995., Proceedings of the Fourth Asian
Conference_Location :
Bangalore
Print_ISBN :
0-8186-7129-7
DOI :
10.1109/ATS.1995.485354
