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Pinout von Asynchron Communication Interface Adapter (6551)
| VSS | 1 | O |
28 | <− |
R/W | |
| CS0 | −> |
2 | 6551 | 27 | <− |
Φ2 |
| CS1 | −> |
3 | 26 | >> |
IRQ | |
| RES | −> |
4 | 25 | <> |
DB7 | |
| RxC | <> |
5 | 24 | <> |
DB6 | |
| XTAL1 | −> |
6 | 23 | <> |
DB5 | |
| XTAL2 | <− |
7 | 22 | <> |
DB4 | |
| RTS | <− |
8 | 21 | <> |
DB3 | |
| CTS | −> |
9 | 20 | <> |
DB2 | |
| TxD | <− |
10 | 19 | <> |
DB1 | |
| DTR | <− |
11 | 18 | <> |
DB0 | |
| RxD | −> |
12 | 17 | <− |
DSR | |
| RS0 | −> |
13 | 16 | <− |
DCD | |
| RS1 | −> |
14 | 15 | VCC |