Comment on the direction of the port for the following CWR values in 8255
- 80H
- 8A H
- 8B H
- 92H
- 98H
Comment on the direction of the port for the following CWR values in 8255 80H 8A H 8B H 92H …
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Comment on the direction of the port for the following CWR values in 8255
For 8A H, in mode 0. The value in CWR are D7 = 1, D6 = 0, D5 = 0, D4 = 0, D3 = 1, D2 = 0, D1 = 1 and D0 = 0
For 8B H, in mode 0. The value in CWR are D7 = 1, D6 = 0, D5 = 0, D4 = 0, D3 = 1, D2 = 0, D1 = 1 and D0 = 1
For 92 H, in mode 0. The value in CWR are D7 = 1, D6 = 0, D5 = 0, D4 = 1, D3 = 0, D2 = 0, D1 = 1 and D0 = 0
For 98 H, in mode 0. The value in CWR are D7 = 1, D6 = 0, D5 = 0, D4 = 1, D3 = 1, D2 = 0, D1 = 0 and D0 = 0
For 80 H, in mode 0. The value in CWR are D7 = 1, D6 = 0, D5 = 0, D4 = 0, D3 = 0, D2 = 0, D1 = 0 and D0 = 0