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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8257
 8251
 8155
 8255

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Microprocessor
An 8-bit microprocessor can have ………….. address lines.

 cannot be predicted
 8
 32
 16

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 IC = FC + 2EC
 EC = IC + FC
 IC = FC - EC
 IC = FC + EC

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Microprocessor
In 8085, the pins for SID and SOD are

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

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Microprocessor
Total numbers of output pins in 8085 microprocessor are

 40
 27
 30
 13

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Microprocessor
The clock speed of 8085 is

 1MHz.
 3.2KHz.
 1KHz.
 3.2MHz.

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