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Microprocessor

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

 ANI F0H
 XRI 0FH
 ANI OFH
 XRI FOH

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (I) only
 (I) & (II)
 (II) & (III)
 (I) ,(III) & (IV)

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Microprocessor
A field programmable ROM is called

 FPROM
 FROM
 PROM
 MROM

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Microprocessor
Of the following circuits, the one which involves storage is

RS Latch
Decoder
Mux
Nand

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Microprocessor
The characteristics of RESET OUT signal is/are

 all.
 this signal can be used to reset other devices.
 the signal is synchronized to the processor clock.
 indicates that µp is being reset.

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Microprocessor
A mask programmed ROM is

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

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