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This paper investigates the use of logic implication checkers for the online detection of errors. A logic implication, or invariant relationship, must hold for all valid input conditions; therefore, any violation of this implication will indicate an error due to an intermittent fault. Techniques are presented to efficiently identify the most useful logic implications to include in checker hardware...
This paper presents principles and results of dynamic testing of an SRAM-based FPGA using time- resolved fault injection with a pulsed laser. The synchronization setup and experimental procedure are detailed. Fault injection results obtained with a DES crypto-core application implemented on a Xilinx Virtex II are discussed.
Error correcting coding is the dominant technique to achieve acceptable soft-error rates in memory arrays. In many modern circuits, the number of memory elements in the random logic is in the order of the number of SRAM cells on chips only a few years ago. Often latches are clock gated and have to retain their states during longer periods. Moreover, miniaturization has led to elevated susceptibility...
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