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Microprocessor

Microprocessor
When the write enable input is not asserted, the gated D latch _________ its output.

Clears
Can not change
Sets
Complements

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Microprocessor
The instruction set of a microprocessor

 is specified by the user
 is stored inside the microprocessor
 is specified by the manufacturers
 cannot be changed by the user

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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

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

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

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

None of these
 four times the desired frequency
 equal to the desired frequency
 twice the desired frequency

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 DI
 SIM
 EI
 RIM

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