8255 Data

  • DIO Base+00h (8255-1 Port A), DIO Base+04h (8255-2 Port A) - (Read/Write)

  • DIO Base+01h (8255-1 Port B), DIO Base+05h (8255-2 Port B) - (Read/Write)

  • DIO Base+02h (8255-1 Port C), DIO Base+06h (8255-2 Port C) - (Read/Write)

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