Intercommunicating among a plurality of processors based upon the identification of the source without using the identification of the destination

Claim 1

An intercommunication network for use in carrying out communication among a plurality of processors, said processors being connected to one another through a system bus and comprising transmission and destination processors which are identified by first and second preassigned processor numbers, respectively, and which are operable as a transmission source on transmission of a transmission request and as a destination end for receiving said transmission request, respectively, wherein said transmission processor comprises: producing means for producing said preassigned processor number assigned to said transmission processor; and sending means coupled to said producing means for sending said first preassigned processor number as a transmission source number to said system bus on transmission of said transmission request with said second preassigned processor number not being sent to identify said destination end; said destination processor comprising: holding means for holding a communicable processor number which is given to said destination processor and which corresponds to said first preassigned processor number; processing unit means for carrying out processing in response to an interruption request signal; detecting means coupled to said system bus and said holding means for detecting whether or not said transmission source number indicates said transmission processor by checking correspondence between said transmission source and said communicable processor number; and means for supplying said interruption request signal to said processing unit means when both said transmission source number and said communicable processor number indicate said transmission processor.