| 摘要 |
PURPOSE: A device for interfacing among processors is provided to make service not to be interrupted under communication fault without interruption by a duplicating bus connecting with the numerous processors physically. CONSTITUTION: A device for interfacing among processors comprises a first and a second bus, a third and a fourth bus, a first receiving data processor(4041-404n), a second data processor(304), and a master processor(30). The first and the second bus provide data from a slave processor to a master processor. The third and the fourth bus provide data from the master processor to the slave processor. The first receiving data processor provides only data from one bus of the first bus and the second bus to the slave processor bus according to the control signal. The second receiving data processor provides data from one bus of the third and the fourth bus according to the control signal to the master processor. And the first and the second receiving data processor control to provide the data from another bus to the related processor, in case of communication fault after checking whether the bus selected by the first and the second receiving data processor communicates every predetermined time.
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