An 8255 IC is interfaced to 8086 microprocessor

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An 8255 IC is interfaced to 8086 microprocessor .Assume the address of 8255 PORT B to be 0091H, Write down the addresses of Control PORT, PORT A and PORT C? I am confused with the above question .Please help guys.

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Mathews Sunny On

By using the following pdf content :

if PORT B is 0091H

then

PORT C is 0093H and Control PORT is 0095H