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Microprocessor

Microprocessor
Identify the programmable interval timer from the following

 8253
 8275
 8279
 8252

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Microprocessor
The forms of IF statements in FORTRAN 77 are called

Logical IF, block IF and arithmetic IF
Logical IF and Block IF
Logical IF and arithmetic IF
Logic IF, block IF, arithmetic IF and negate IF

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Microprocessor
SUB A instruction in 8085

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

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Microprocessor
S0 and S1 pins are used for

 indicating the processor’s status
 serial communication
None of these
 acknowledging the interrupt

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

 16
 10
 13
 7

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
6 AFH
64 H
45 H

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