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Microprocessor

Microprocessor
The number of output pins in 8085 microprocessors are

 27.
 40.
 21.
 19.

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (II) & (III)
 (I) & (II)
 (I) ,(III) & (IV)
 (I) only

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 conditional interrupts
 hardware interrupts
 software interrupts
 logical interrupts

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has the same number of gates as circuit B
Circuit A has more gates than circuit B
Circuit B has more gates than circuit A
None of these

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Microprocessor
During which T-state, contents of OP code from memory are loaded into IR (Instruction Register)?

 T4 OP code fetch
 T3 OP code fetch
 T1 OP code fetch
 T2 OP code fetch

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

 16
 8
 20
 12

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