Q232
Consider the following statements regarding programmable interrupt controller 8259A: 1. 8259A is specifically designed for use with the interrupt signals (INTR/INT) of 8085 microprocessor. 2. It can solve eight levels of interrupt priorities in a variety of modes. 3. With additional 8259A devices, the priority scheme can be expanded to 32 levels. Which of the above statement is/are not correct?
A.
1 and 3
AnswerB.
2 only
C.
3 only
D.
1 and 2
Answer: Option A
Solution
Answer: Option A
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