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Microprocessor

Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 003CH
 0000H
 002CH
 0043H

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Microprocessor
The operating modes of 8255 A are called

Mode 0 and mode 2
Mode 0, mode 2 and mode 3
Mode 0 and mode 1
Mode 0, mode 1 and mode 2

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

1
-1
-0
+0

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Microprocessor
The address bus of any microprocessor is always

 Unidirectional
 Either unidirectional or bi-directional
 None
 Bi-directional

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Microprocessor
Which of the following pair of gates can form a latch?

A pair of cross copled AND
A pair of cross coupled OR
A pair of cross coupled NAND
A cross coupled NAND/OR

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 A or B or HOLD line
 RESTART
 READY line
 any of the five interrupt lines

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