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Microprocessors

Q1: 8255 A has three 8 bit ports A, B, C for peripheral data transfer. For programming 8255 A, these ports are grouped as

A Port A with Port B

B Port A with 4 most significant ports of C, port B with 4 least significant ports of C

C Port A with Port C

D none of the above

ANS:B - Port A with 4 most significant ports of C, port B with 4 least significant ports of C

No answer description is available.



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