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Glossary
© National Instruments Corporation G-9 PCI-MXI-2 for Linux
T
trigger Either TTL or ECL lines used for intermodule communication.
TTL Transistor-Transistor Logic.
U
user window A region of PCI address space reserved by the PCI-MXI-2 for use via the
NI-VXI low-level function calls.
MapVXIAddress() uses this address
space to allocate regions for use by the
VXIpeek() and VXIpoke()
macros.
V
V Volts.
VDC Volts direct current.
VICtext VXI Interactive Control Program, a part of the NI-VXI bus interface
software package. Used to program VXI devices, and develop and debug
VXI application programs.
VME Versa Module Eurocard or IEEE 1014.
VMEbus System
Controller
A device configured for installation in Slot 0 of a VXIbus mainframe or
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/VXIbus backplane, or both.
VXIbus VMEbus Extensions for Instrumentation.
VXIinit A program in the NI-VXI bus interface software package that initializes the
board interrupts, shared RAM, VXI register configurations, and bus
configurations.