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Microprocessor

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

 640ns
 1280ns
 960ns
 320ns

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is asserted, S is negated
R is negated, S is negated
R is asserted, S is asserted
R is negated, S is asserted

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Microprocessor
SUB A instruction in 8085

 sets zero and sign flags
 sets zero and carry flags
 reset zero and parity flags
 reset carry and sign flags

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 3.
 6.
 4.
 2.

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 00
 11
 01
 10

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Microprocessor
8085 microprocessor has how many pins

  30.
  40.
 39.
 41.

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