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Pinout von Programmable Interrupt Controller (8259)
| CS | −> |
1 | O |
28 | VCC | |
| WR | −> |
2 | 8259 | 27 | <− |
A0 |
| RD | −> |
3 | 26 | <− |
INTA | |
| DB7 | <> |
4 | 25 | <− |
IR7 | |
| DB6 | <> |
5 | 24 | <− |
IR6 | |
| DB5 | <> |
6 | 23 | <− |
IR5 | |
| DB4 | <> |
7 | 22 | <− |
IR4 | |
| DB3 | <> |
8 | 21 | <− |
IR3 | |
| DB2 | <> |
9 | 20 | <− |
IR2 | |
| DB1 | <> |
10 | 19 | <− |
IR1 | |
| DB0 | <> |
11 | 18 | <− |
IR0 | |
| CAS0 | <> |
12 | 17 | −> |
INT | |
| CAS1 | <> |
13 | 16 | <> |
SP/EN | |
| VSS | 14 | 15 | <> |
CAS2 |