Microprocessor and Computer Architecture, Notes

What will be the arrangement of ports on 82C55A PPI for the following bit format of command byte A, 10000010

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Last updated on June 13th, 2020 at 08:31 pm

The given bit format is as follows,

7
6
5
4
3
2
1
0
1
0
0
0
0
0
1
0

Arrangement of Ports Due to Given Bit Format:



            So the arrangement will be, mode 0, port A and C as output, port B as input.