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Microprocessor

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

 640ns
 960ns
 320ns
 1280ns

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Microprocessor
HLT opcode means

  end of program.
  store result in memory.
  load data to accumulator.
  load accumulator with contents of register.

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Microprocessor
PSW stands for

 flag byte
 none
 accumulator contents
 accumulator and flag register contents

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 RST 7
 RST 5.5
 TRAP
 INTR

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

 Condition code register
 Flag register
 Accumulator
 Process status register

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Microprocessor
Total number of modes the 8253 can work

 4
 6
 8
 12

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