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Design of concurrently testable microprogrammed control units

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Published:05 October 1982Publication History
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Abstract

Four schemes for the design of concurrently testable microprogrammed control units are presented. In Schemes 1 and 2 the concept of path signatures is used for detection of malfunctions in the control unit. Two different methods for computation of signatures are given. In Schemes 3 and 4, a check-symbol is assigned to each microinstruction and the integrity of these check-symbols is checked concurrently. A deterministic approach is used for generation of check-symbols in Scheme 4. A comparative study of these schemes is done with respect to storage and time overhead, error coverage, and implementation complexity.

References

  1. 1 D. A. Anderson, "Design of Self-Checking Digital Networks Using Coding Techniques," Coordinated Science Lab, University of Illinois, Report R-527, September 1971.Google ScholarGoogle Scholar
  2. 2 H. Y. Chang, R. C. Dorr, and D. J. Senese, "The Design of a Microprogrammed Self-Checking Processor of an Electronic Switching System," IEEE Trans. Computers, Vol. C-22, No. 5, May 1973, pp. 489-500.Google ScholarGoogle Scholar
  3. 3 H. Y. Chang, G. W. Heimbigner, D. J. Senese, and T. L Smith, "Maintenance Techniques of a Microprogrammed Self-Checking Control Complex of an Electronic Switching System," IEEE, Trans. Computers, Vol. C-22, No. 5, May 1973, pp. 501-512.Google ScholarGoogle Scholar
  4. 4 R. W. Cook, W. H. Sisson, T. F. Storey, and W. N. Toy, "Design of a Self-Checking Microprogram Control," IEEE Trans. Computers, Vol. C-22, No. 3, March 1973, pp. 255-262.Google ScholarGoogle Scholar
  5. 5 M. Diaz and J. Moreira, "Design of Self-Checking Microprogrammed Controls," Digest, Fault Tolerant Computing Symposium (FTCS-5), Paris, France, June 1975, pp. 137-142.Google ScholarGoogle Scholar
  6. 6 J. F. Wakerly, "Design of a Totally Self-Checking Microprogrammed Processor," Proc. Fault Tolerant Computing Symposium, (FTCS-6), Pittsburgh, Pennsylvania, June 1976, p. 191.Google ScholarGoogle Scholar

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                  cover image ACM SIGMICRO Newsletter
                  ACM SIGMICRO Newsletter  Volume 13, Issue 4
                  Dec. 1982
                  169 pages
                  ISSN:1050-916X
                  DOI:10.1145/1014194
                  Issue’s Table of Contents

                  Copyright © 1982 Author

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                  Association for Computing Machinery

                  New York, NY, United States

                  Publication History

                  • Published: 5 October 1982

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