Fault-tolerant directory cache controller
A directory cache and controller technology, applied in memory systems, instruments, electrical digital data processing, etc., can solve problems such as poor fault tolerance, low reliability, and inability to meet the space environment or complex electromagnetic environment of the directory cache
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[0095] The following describes the implementation of the present invention through specific specific examples.
[0096] Such as Figure 4 As shown, the fault-tolerant directory Cache controller of the present invention consists of 4 identical DCB modules, 1 directory access bypass DAP module, 1 directory access crossbar DAX module, 1 memory access crossbar MAX module, and 1 configuration register constitute. The 4 directory cache bodies are respectively marked as the zeroth directory cache body DCB 0 , The first directory cache body DCB 1 , The second directory cache body DCB 2 And the third directory cache body DCB 3 , The internal structure and connection relationship of the four directory cache bodies are exactly the same. The connection relationship between the various components is: the directory access crossbar switch DAX and the external interface are connected with the DCB through the request message signal and the read return message signal. 0 , DCB 1 , DCB 2 , DCB 3 , D...
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