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Why MOVX instruction is being used to access the ports of the 8255?

mhmadesk
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2022-06-17
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Why MOVX instruction is being used to access the ports of the 8255?

  1. because 8255 is used to access the memory mapped I/O
  2. because 8255 is used to access the external communication
  3. because 8255 is used to access the data transfer
  4. because 8255 is used to access the interfacing of LCD, motor etc.
Computer, PIC (Programmable Integrated Circuits), MCQ Questions, Computer MCQ-questions, PIC (Programmable Integrated Circuits) MCQ-questions,
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mhmadesk
2022-06-17
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 (a).because 8255 is used to access the memory mapped I/O

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