ИСТИНА

At present, issues related to synthesis of fault-tolerant combinational circuits acquire special relevance in the world. This is facilitated by various factors in the development of microelectronic industry, including transition to nanometer dimensions of design, as well as the development of modern methods and means of automation. Different factors together lead to the fact that exactly combinational regions become the most vulnerable region of the die. Solution to this problem is often associated with the use of redundant coding, which is traditionally used in data storage and transmission systems. However, standard noise-immune codes are often ineffective because of specifics of combinational circuit construction, and occurred errors are ignored. We suggest a new approach to the construction of fault-tolerant combinational circuits with the use of redundant coding based on the spectral R-code. This code corrects single and detects double errors. We apply methods of technological protection for part of encoder, code corrects any single error in combinational circuit, and we obtain smaller structural redundancy in comparison with the triple modular redundancy. The article presents a series of numerical experiments, demonstrating high efficiency of the proposed approach.