Q23
On the 16-bit ISA bus, IRQ2 is elevated to which higher level Interrupt?
A.
9
AnswerB.
11
C.
13
D.
15
E.
None of the above
Answer: Option A
Solution
Answer: Option A
Solution:
On the 16-bit ISA bus, IRQ2 is cascaded or elevated to IRQ9 as a higher-level interrupt.This means that devices that originally used IRQ2 on the ISA bus would use IRQ9 instead to avoid conflicts and manage interrupts effectively.
The IRQ levels on the ISA bus are cascaded in this manner to accommodate more devices and prevent interrupt conflicts.
Therefore, on the 16-bit ISA bus, IRQ2 is elevated to IRQ9, making Option A the correct answer.