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Microprocessor

Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8257.
 8255.
 8212.

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

6 AFH
64 H
45 H
234

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Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 8 K bytes
 4 K bytes
 1 K bytes
 10 K bytes

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 None
 11111111
 00000000
 00000001

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It has to fetch two 8-bit data at a time
 There are 16 address lines
 It counts 16-bits at a time
 It facilitates the user storing 16-bit data temporarily

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

 003CH
 0043H
 0000H
 002CH

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