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
B. 2 only
C. 3 only
D. 1 and 2
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Microprocessors And Microcontrollers
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