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I/O Map: Dell OptiPlex GX1 Systems
I/O Map: Dell™ OptiPlex™ GX1 Systems
| Address |
Device |
| 0000–000F |
DMA controller #1 |
| 0020–003F |
Interrupt controller #1 |
| 0040–0043 |
System timers |
| 0044–005F |
Reserved |
| 0060–006F |
Keyboard controller |
| 0070–0071 |
RTC and NMI enable |
| 0080–008F |
DMA page registers |
| 00A0–00BF |
Interrupt controller #2 |
| 00C0–00DF |
DMA controller #2 |
| 00F0 |
Coprocessor busy clear |
| 00F1 |
Coprocessor busy reset |
| 00F2–00FF |
Available |
| 278–27F |
LPT2 |
| 2E8–2EF |
COM4 |
| 2F8–2FF |
COM2 |
| 378–37F |
LPT1 |
| 3E8–3EF |
COM3 |
| 3F8–3FF |
COM1 |
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