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Microprocessor

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

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

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Microprocessor
The clock speed of 8085 is

 1KHz.
 1MHz.
 3.2MHz.
 3.2KHz.

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 320ns
 960ns
 1280ns
 640ns

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XCHG & DAD H
 PCHL & DAD D
 XCHG & DAD B
 XTHL & DAD H

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Microprocessor
In 8085, the pins for SID and SOD are

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

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

 CMA
 ANI 0FH
 XRI 0FH
 ORI 0FH

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MORE MCQ ON Microprocessor

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