Manual PCIe-DIO-120/96/72
11
Chapter 4: Address Selection
These cards use one address space, and occupy 64 register locations. These are
defined in the Port Address Selection Table in the Programming section of this manual.
PCI Express architecture is inherently plug-and-play. This means that the BIOS or
Operating System determines the resources assigned to PCI Express cards rather than
you selecting those resources with switches or jumpers. As a result, you cannot set or
change the card's base address or IRQ level. You can only determine what the system
has assigned.
To determine the base address that has been assigned, run the AIOWDMFind.EXE
utility program provided. This utility will display a list of all of the cards detected on the
PCI Express bus, the addresses assigned to each function on each of the cards, and the
respective IRQs.
Alternatively, some operating systems can be queried to determine which resources
were assigned. In these operating systems, you can use either AIOWDMFind (Windows
7 or later) PCIFind or the Device Manager utility from the System Properties Applet of
the control panel. The card is installed in the Data Acquisition class of the Device
Manager list. Selecting the card, clicking Properties, and then selecting the Resources
Tab will display a list of the resources allocated to the card.
If you want to determine the base address and IRQ yourself, use the following
information.
The Vendor ID for these cards is 494F. (ASCII for "IO")
The Device ID for the 72 is 0C6A.
The Device ID for the 96 is 0C71.
The Device ID for the 120 is 0C79.
