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Microprocessor

Microprocessor
Which of the following interrupt is both level and edge sensitive?

 INTR
 RST 5.5
 TRAP
 RST 7.5

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Microprocessor
What is SIM?

  Set interrupt mask.
 Sorting interrupt mask.
 None of these.
 Select interrupt mask.

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 0FFE H and 0FFF H
 1000 H and 1001 H
 1000 H and 0FFF H
 0FFF H and 0FFE H

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Microprocessor
DMA signal/signals in 8085 is/are

 HOLD.
 HLDA.
 READY.
 All.

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Microprocessor
While STC instruction executes,

 only carry and zero flags will be affected.
 no flags will be affected.
 all flags will be affected.
 only carry flag will be affected.

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Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

OR-NAND
NOR-NAND
NAND-NAND
NAND-NOR

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