Question

he unique addresses assigned to the four registers (R11,R12,13,R14) of the I/O interface are equal

to the XX3 , XX7 , XXB and XXF in Hex . Where XX is hex digits equal to your roll no . (if student is having

roll no 45 than address are 453 ,457 ,45B , 45F in Hex ) .Show the well labeled external circuit that must

be connected between and 12-bit I/O address from the CPU and the CS, RSI, and RS0 Inputs of the

Interface.

Answer 1

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