A Totally Self-Checking 1-out-of-3 Code Error Indicator

  • Authors:
  • A. Paschalis;N. Gaitanis;D. Gizopoulos;P. Kostarakis

  • Affiliations:
  • Institute of Informatics and Telecommunications, NCSR “Demokritos”, 153 10 Ag. Paraskevi, Athens, Greece. E-mail: paschali@iit.demokritos.gr;Institute of Informatics and Telecommunications, NCSR “Demokritos”, 153 10 Ag. Paraskevi, Athens, Greece. E-mail: nikos@iit.demokritos.gr;Institute of Informatics and Telecommunications, NCSR “Demokritos”, 153 10 Ag. Paraskevi, Athens, Greece. E-mail: dgizop@iit.demokritos.gr;Institute of Informatics and Telecommunications, NCSR “Demokritos”, 153 10 Ag. Paraskevi, Athens, Greece. E-mail: pkost@iit.demokritos.gr

  • Venue:
  • Journal of Electronic Testing: Theory and Applications
  • Year:
  • 1998

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Abstract

In this paper, an asynchronous TSC 1-out-of-3 (1/3) codeerror indicator is introduced that memorizes erroneous 1/3 codeinputs 000, 011, 101, 110, 111 with time duration greater than adiscrimination time T. Such an error indicator is used todiscriminate transient erroneous 1/3 code inputs from real ones aswell as to detect faults that cause logical errors and delay faults(short or long) altering the circuit delay outside its specifiedlimits (upper or lower bounds) without causing logical errors. To ourknowledge, this error indicator is the first TSC 1/3 code errorindicator proposed in the open literature.