| Publisher | Microsoft | ||
|---|---|---|---|
| Format | HTML | Date added | 14 Aug 2003 |
| Topics | PCMCIA Cards, Interfaces / Buses / I/Os, Windows 3.1 - 95 - 98 - Me | ||
| Downloads | 539 | ||
One drawback of Microsoft Windows 95 is its inability to dynamically route PCI interrupts to interrupt requests (IRQs). The BIOS must assign IRQs to all PCI devices during power-on self-test (POST), and once chosen, the interrupts cannot be moved. In order to support assignment and reassignment of PCI IRQs, Windows 98 will need to know how the system board has wired each PCI slot's interrupt pins to the PCI Interrupt Router's interrupt pins. This information cannot be detected without special-purpose hardware, so Windows must obtain it from another source. This document describes how Windows 98 will use the BIOS to determine this information.
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