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Microprocessor

Microprocessor
Identify the non-maskable interrupt from the following

 RST 5.5
 RST 6.5
 RST 4.5
 RST 7.5

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Microprocessor
While INX B instruction execute,

 no flags will be affected
 only carry and zero flags will be affected
 only carry flag will be affected
 all flags will be affected

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Microprocessor
Assertion(A): Address bus is unidirectional. Reason(R): Data bus is bidirectional

 Both A & R are true but R is not the correct explanation of A
 A is true but R is false
 A is false but R is true
 Both A & R are true and R is the correct explanation of A

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Microprocessor
Total numbers of output pins in 8085 microprocessor are

 30
 40
 27
 13

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 It has to fetch two 8-bit data at a time
 It counts 16-bits at a time
 There are 16 address lines

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Microprocessor
DMA signal/signals in 8085 is/are

 All.
 HOLD.
 HLDA.
 READY.

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