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Microprocessor

Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 8
 12
 16
 20

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 there is a pin available for serial output
 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial input
 serial I/O is not possible

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Microprocessor
Identify the non-maskable interrupt from the following

 RST 4.5
 RST 6.5
 RST 5.5
 RST 7.5

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Microprocessor
In a microprocessor based system the stack is always in

 ROM
 RAM
 microprocessor
 EPROM

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T4 & T1
 T3 & T4
 T2 & T3
 T1 & T2

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

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