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Microprocessor

Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 4
 5
 6
 3

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Microprocessor
DMA signal/signals in 8085 is/are

 HOLD.
 All.
 HLDA.
 READY.

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Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 8 K bytes
 10 K bytes
 4 K bytes
 1 K bytes

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Microprocessor
Which of the following pair of gates can form a latch?

A pair of cross copled AND
A cross coupled NAND/OR
A pair of cross coupled NAND
A pair of cross coupled OR

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

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

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 logical interrupts
 conditional interrupts
 hardware interrupts
 software interrupts

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