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  • Question
  • Can 8259 he interfaced with 8085 via the trap pin?


  • Correct Answer
  • Yes so if 8529 gives interrupt then it will be serviced immediately but since INTA pin is left hanging the INSR bit will never be set and so whenever my interrupt occurs depending upon priority it will be serviced also the ISR address for all interrupts will be same ie 0024H Interrupt via trap is nonmaskable, so it will be serviced immediately 


  • More questions

    • 1. In the relational model, relationships between relations or tables are created by using:

    • Options
    • A. composite keys.
    • B. determinants.
    • C. candidate keys.
    • D. foreign keys.
    • Discuss
    • 2. What does microprocessor speed depend on?
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    • 3. What does RSI stand for?
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    • 4. Which Stack is used in 8086?
    • Discuss
    • 5. What is object repository?
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    • 6. Which is the Stack used in 8085?
    • Discuss
    • 7. What does GUI stand for?
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    • 8. What is the main reason the OSI Model was created?
    • Discuss
    • 9. Ethernet uses which topology

    • Options
    • A. Star
    • B. Bus
    • C. Twisted pair
    • D. Both B & C
    • Discuss
    • 10. What are various scheduling queues?
    • Discuss


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