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KRETS TIL FORBEDRING AV ET REGISTERS FEILSIKKERHET ELLER ROBUSTHET SAMT FREMGANGSMAATE TIL BESKYTTELSE MOT PROGRAMVAREFEIL.
KRETS TIL FORBEDRING AV ET REGISTERS FEILSIKKERHET ELLER ROBUSTHET SAMT FREMGANGSMAATE TIL BESKYTTELSE MOT PROGRAMVAREFEIL.
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机译:改善寄存器的错误安全性或鲁棒性的电路,以及针对软件错误的保护的电路。
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摘要
The present invention describes a robust register circuit for protecting critical control points in data transmission and telecommunications equipment against software included failures. A circuit is provided wherein duplicated data words are written into a pair of registers of any desired bit length. A digital comparator determines whether the two data words are the same, and initiates a data transfer into a third register for transmission to critical hardware control points only when two identical sequential data words are recognized. When no such recognition occurs, new data is not transferred to the third register, and the hardware control points remain controlled by the previous data in the third register.
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