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Industrial Automatic Control Systems and Controllers

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The Analytical Method of Assessment of Efficiency of One Way of Increase of Upset Tolerance of Microprocessor Systems
Yu.S. Akinina, Yu.Yu. Gromov, V.K. Zolnikov, A.Yu. Kulay, S.V. Tyurin, M.A. Khudyakov

This article offers the analytical method of assessment of potential upset tolerance of microprocessor systems, based on watchdog mechanism on the basis of tag memory of programs, specially formed sign «reading a code of command» by the microprocessor and the organization of the additional interface «handshake» between the microprocessor and the program memory. The offered analytical method of assessment of effi ciency is applicable to microprocessors having CISC-architecture and multibyte format of commands of any frequency rates without any restricts. Moreover it is represented, that considered watchdog mechanism potentially allows to fi nd out up to 80 % of errors of stream of management and also single or multiple odd errors of reading program memory for microprocessors with a three-byte
format of commands.
Keywords: upset tolerance; microprocessor system; errors of stream of management; CISC-architecture; multibyte format of commands.

Contacts: E-mail: julakinn@mail.ru

Pp. 41-48.

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