【国外标准】 IEEE Standard for Fault Tolerant Extensions to the Futurebus+(R) Architecture

This standard specifies the functions needed to implement a fault tolerant Futurebus+TM backplane. It does not specify how to implement a fault tolerant system or how to implement a fault tolerant backplane. The functions specified are required for any system using Futurebus+ with a fault tolerant requirement. It is expected that this standard will be used in its entirety and will be cited by Futurebus+ application environment profiles requiring fault tolerance. This standard is composed of… read more eight clauses and an annex. References required by this standard are defined in clause 2. Key words used in this standard are defined in clause 3.. Detection mechanisms (not covered by ISO/IEC 10857 :1994 and IEEE Std 896.2-1991)1 that support single-bit and single-point fault coverage are discussed in clause 4. A detailed description of error handling requirements is described in clause 5. A description of the error reports generated from the detection of an error are characterized in clause 6. Basic recovery functions (i.e., retry) are covered in clause 7. CSR definitions not covered by clause 3 of IEEE Std 896.2-1991 are specified in clause 8. The annex contains a Failure Modes and Effects Analysis (FMEA) of the signals protected by this standard. This standard is an extension of the concepts developed in ISO/IEC 10857: 1994 and IEEE Std 896.2-1991. Knowledge of those standards is necessary for a complete understanding of this standard. Because the cache coherency and message passing protocols described in ISO/IEC 10857 :1994 are built on top of the basic signaling conventions, they are beyond the scope of this standard and are not addressed by this document. However, they may be addressed by a future extension to this standard. read less