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Microprocessor

Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8212.
 8257.
 8255.

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 512
 65536
 256
 285

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ANI 0FH
 ORI 0FH
 XRI 0FH

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Microprocessor
The operating modes of 8255 A are called

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

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Microprocessor
Identify the communication interfacing device from the following

 8251
 8257
 8155
 8255

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

one million
10000
100000
1000

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