Glossary
VXI/VMEpc 600 Series User Manual
G-8
©
National Instruments Corporation
U
USB
Universal Serial Bus
user window
a region of PCI address space reserved by the hardware for use via the
NI-VXI low-level function calls
UW SCSI
Ultra Wide SCSI
V
V
volts
VGA
Video Graphics Array; the minimum video display standard for all PCs
VISA
Virtual Instrument Software Architecture. This is the general name given to
VISA and its associated architecture.
VME
Versa Module Eurocard or IEEE 1014
VMEbus System
Controller
a device configured for installation in Slot 1 of a VMEbus chassis. This
device is unique in the VMEbus system in that it performs the VMEbus
System Controller functions, including clock sourcing and arbitration for
data transfers across the backplane. Installing such a device into any other
slot can damage the device, the VMEbus backplane, or both.
VXIbus
VMEbus Extensions for Instrumentation