ICS PCI-WDT50 Series, Product Manual, Page: 22 / 44

Manual Number: 00650-144-1 Page 13
Chapter 4: Address Selection
The PCIWDT50x uses one PCI address space, occupying 16 consecutive register locations.
PCI architecture is inherently plug-and-play. This means that the BIOS or Operating System deter-
mines the resources assigned to PCI cards rather than you selecting those resources with switches
or jumpers. As a result, you cannot set or change the card’s base address. You can only determine
what the system has assigned. To determine the base address that has been assigned, run the pro-
vided PCIFind.EXE utility program.
Alternatively, some operating systems (Windows95 and WindowsNT 5.0) can be queried to deter-
mine which resources were assigned. In these operating systems, you can use either PCIFind,
PCINT (for WindowsNT), or the Device Manager utility from the System Properties Applet of the
control panel. The PCI-WDT50x 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.
The PCI bus supports 64K of address space, so your card’s addresses may be located anywhere in
the 0000 to FFFF hex range.