Fault tolerance method of cache coherence maintenance system

The increase fault tolerance method of cache coherence maintenance system with snooping protocol is presented. In the suggested method, requests, states, and signals in protocol realization scheme are coded. For fault tolerance achievement in coherence maintenance logic, the code, correcting single and detecting double error, is applied to coded requests, states, and signal lines. An improvement of fault tolerance method of cache coherence maintenance systems with snooping protocol is considered. Codes for requests, states, and signals in protocol realization scheme are developed. Codes for correction single and detecting double errors in requests, states, and signals lines are presented.