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Microprocessor

Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 7
 10
 13

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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Microprocessor
The register which holds the information about the nature of results of arithmetic and logic operations is called as

 Flag register
 Process status register
 Condition code register
 Accumulator

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Machine cycle
 Clock cycle
 Memory cycle
 Instruction cycle

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Microprocessor
A number of 1-bit registers used in microprocessors to indicate certain conditions are usually referred to as

 latches
 shift registers
 counters
 flags

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the user
 direct memory access for microprocessor
None of these
 direct memory access for the I/O device

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