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Microprocessor

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

 65536
 512
 285
 256

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Microprocessor
Identify the non-programmable interfacing device from the following

 8212.
 8257.
 8295.
 8255.

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Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 B-C
 PSW
 Stack Pointer
 D-E

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
4 and 3 respectively
5 and 4 respectively
4 and 5 respectively

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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
The register which holds the information about the nature of results of arithmetic and logic operations is called as

 Process status register
 Flag register
 Accumulator
 Condition code register

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MORE MCQ ON Microprocessor

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