Device Mapping
D-2 AlphaStation 500 Series User Information
Interrupt Map
The (Interrupt Request register) IRQ assignments for the AlphaStation 500 Series are
shown in Table D-2; the EISA interrupt assignments are shown in Table D-2. This
information is useful when adding or reconfiguring options on your system. Avoid
conflicts when assigning IRQs by associating one IRQ to one source. PCI interrupt levels
are set either by the operating system (as in Windows NT) or by the SRM console (as in
Digital UNIX and OpenVMS).
