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Microprocessor

Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 640ns
 1280ns
 320ns
 960ns

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

 4
 3
 6
 5

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

 1 and 2 only
 3 and 4 only
 1, 2 and 3
 1, 2, 3 and 4

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Microprocessor
The number of interrupt lines in 8085 is

3
2
5
4

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 11
 01
 00
 10

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