Multiple choice

Which of the following registers in 8259A Programmable Interrupt Controller is used to store all the interrupt levels which are requesting service?

  1. Interrupt Request Register

  2. Interrupt Mask Register

  3. INTA

  4. R/W Control Logic

  5. SP/EN

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A Correct answer
Explanation

This register in 8259A Programmable Interrupt Controller is used to store all the interrupt levels which are requesting service.