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Microprocessor

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

 5
 4
 6
 3

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Microprocessor
Which of the following is a valid integer constant?

127
127
125 + 3
127

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0060H.
 0048H.
 0024H.
 0030H.

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 both A and B.
 program counter.
 stack pointer.
 none of these.

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Microprocessor
A combinational PLD with a programmable AND array and a programmable OR array is called a

 PAL
 PROM
 PLD
 PLA

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Microprocessor
A mask programmed ROM is

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

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