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Microprocessor

Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 ANI OFH
 XRI 0FH
 ANI F0H
 XRI FOH

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Microprocessor
What is SIM?

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

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 16
 4
 5
 20

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Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 6
 2
 16
 8

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Microprocessor
A mask programmed ROM is

 erasable electrically
 erasable and programmable
 programmed at the time of fabrication
 programmed by the user

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