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Microprocessor

Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 20
 16
 12
 8

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 same as the content of A7-A0
 all bits reset (i.e. 00H)
 irrelevant
 all bits set (i.e. FFH)

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Microprocessor
Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct?

 (I), (II) & (III)
 (II) only
 (II) & (III)
 (I) only

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Register
Direct
Implicit
Immediate

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Microprocessor
Total number of modes the 8253 can work

 4
 6
 12
 8

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Microprocessor
EPROMs are preferred for storing programs while developing new microprocessor based system. Because of their

 erasable and programmable characteristic
 all the above characteristic
 non-volatile characteristic
 random access characteristic

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