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Microprocessor

Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 68000
 6502
 8085
 Z-80

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 01
 10
 00
 11

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

234
45 H
6 AFH
64 H

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

 8
 16
 20
 12

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

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

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8275
 8279
 8252

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