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Briefly Explain The Two Hardware Methods To Establish Priority?

Answer»

Two different ways of establishing HARDWARE priority are Daisy Chaining and parallel priority.

  • Daisy chaining is a form of a hardware implementation of the polling procedure.
  • Parallel priority is quicker of the two and uses a priority encoder to establish priorities.
  • In parallel priority interrupt a REGISTER is used for which the bits are SEPARATED by the interrupt signals from every device.
  • The parallel priority interrupt may also contain a mask register which is PRIMARILY used to control the status of every REQUEST regarding interrupts.

Two different ways of establishing hardware priority are Daisy Chaining and parallel priority.


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