GROUP 1 CONFIGURE
BADR3 + 7
READ/WRITE
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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MS | M3 | M2 | A | CH | M1 | B | CL |
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5.4.3 Group 2 8255 Configuration & Data
GROUP 2, PORT A DATA
BADR3 + 8
READ/WRITE
7 |
| 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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D7 |
| D6 | D5 | D4 | D3 | D2 | D1 | D0 |
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GROUP 2, PORT B DATA |
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BADR3 + 9 |
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READ/WRITE |
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7 |
| 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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D7 |
| D6 | D5 | D4 | D3 | D2 | D1 | D0 |
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GROUP 2, PORT C DATA |
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BADR3 + A hex |
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READ/WRITE |
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7 |
| 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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C8 |
| C7 | C6 | C5 | C4 | C3 | C2 | C1 |
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CH4 |
| CH3 | CH2 | CH1 | CL4 | CL3 | CL2 | CL1 |
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GROUP 2 CONFIGURE |
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BADR3 + B hex |
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READ/WRITE |
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7 |
| 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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MS |
| M3 | M2 | A | CH | M1 | B | CL |
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5.4.4 Group 3 8255 Configuration & Data
GROUP 3, PORT A DATA
BADR3 + C hex
READ/WRITE
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
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14
