INTER CONNECTION STRUCTURES



  • The collection of paths connecting the various modules is call the interconnection structure.

THE INTER  CONNECTION STRUCTURE SUPPORT FIVE TYPES OF TRANSFERS
  1. Processor to Memory
  2. Memory to Processor
  3. I/O to Processor
  4. Processor to I/O
  5. DMA (Direct Memory Access )

  • Transfer data via the bus.
  • If one module wishes to request  data from another , it mus :
            1) Obtain use of the bus.
            2) Transfer a request to the other module over control and address line.
            3) Wait for second module to sent data.




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