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Electronics and Communication Engineering - Microprocessors - Discussion

Discussion Forum : Microprocessors - Section 10 (Q.No. 42)
Microprocessors
42.
8255 A has three 8 bit ports A, B, C for peripheral data transfer. For programming 8255 A, these ports are grouped as
Port A with Port B
Port A with 4 most significant ports of C, port B with 4 least significant ports of C
Port A with Port C
none of the above
Answer: Option
Explanation:
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