The register that stores all interrupt requests is :
2016
The register that stores all interrupt requests is :
Answer: C. Interrupt request register — Answer: Interrupt request register Explanation: The Interrupt Request Register records pending interrupt requests until the processor acknowledges and…
- A.
Interrupt mask register
- B.
Interrupt service register
- C.
Interrupt request register
- D.
Status register
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Correct answer: C
Answer: Interrupt request register
Explanation: The Interrupt Request Register records pending interrupt requests until the processor acknowledges and services them. Each bit typically corresponds to an interrupt line that is awaiting handling.
Interrupt Request Register: stores pending interrupt requests; this is the register referenced by the question.
Interrupt Mask Register: used to mask (disable) or unmask specific interrupts; it does not record requests.
Interrupt Service Register: indicates which interrupt is currently being serviced by the processor, not which are pending.
Status Register: holds general status flags (for example zero, carry, interrupt-enable) and is not the register that stores interrupt requests.