P R O G R A M M A B L E
O P T I O N S E L E C T
+-------------------------+-------------------+
| ADSx3 ADSx2 ADSx1 ADSx0 | Base address |
+-------------------------+-------------------+
| 0 0 0 0 | 3F8H (Serial 1) |
| 0 0 0 1 | 2F8H (Serial 2) |
| 0 0 1 0 | 3220H (Serial 3) |
| 0 0 1 1 | 3228H (Serial 4) |
| 0 1 0 0 | 4220H (Serial 5) |
| 0 1 0 1 | 4228H (Serial 6) |
| 0 1 1 0 | 5220H (Serial 7) |
| 0 1 1 1 | 5228H (Serial 8) |
| 1 0 0 0 | 83F8H |
| 1 0 0 1 | 82F8H |
| 1 0 1 0 | B220H |
| 1 0 1 1 | B228H |
| 1 1 0 0 | C220H |
| 1 1 0 1 | C228H |
| 1 1 1 0 | D220H |
| 1 1 1 1 | D228H |
+-------------------------+-------------------+
Figure 17. Available base addresses.
+-------------+-----+
| INSx1 INSx0 | IRQ |
+-------------+-----+
| 0 0 | 3 |
| 0 1 | 4 |
| 1 0 | 7 |
| 1 1 | 9 |
+-------------+-----+
Figure 18. Available interrupt levels.
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