16. The synchronization between microprocessor and memory is done by

1. 1. ALE signal

   
   
   

   2. HOLD signal

   
   
   

   3. READY signal

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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17. Program Counter is used to

1. 1. store address of the next instruction to be executed

   
   
   

   2. store temporary data to be used in arithmetic operations

   
   
   

   3. store the status of the microprocessor

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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18. Which of the following signal is used when a microprocessor wants to address the memory?

1. 1. IO/ M

   
   
   

   2. Status signals

   
   
   

   3. ALE

   
   
   

   4. HOLD and HLDA

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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19. The selection of a microprocessor for an application is done keeping in mind
    

1. 1. speed compatibility of microprocessor with perip-herals

   
   
   

   2. the time critical behaviour of the application

   
   
   

   3. the size of program required to implement certain functions

   
   
   

   4. all of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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20. SHIFT LEFT instruction causes all bits shifted from one position to the left with rightmost bit set to zero. The effect is to

1. 1. multiply by 2

   
   
   

   2. divide by 2

   
   
   

   3. SET the most significant bit

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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