Glossary
© National Instruments Corporation
Glossary-11
VXI-MXI User Manual
TERMPWR
Termination Power; 3.4 VDC for the MXIbus.
Trigger
Either TTL or ECL lines used for intermodule communication.
TTL
Transistor-Transistor Logic
V
V
volts
VDC
volts direct current
VMEbus
Versa Module Eurocard or IEEE 1014; the IEEE Standard for a Versatile
Backplane Bus.
VXIbus
VMEbus Extensions for Instrumentation
VXIbus System
A functional module with circuitry that generates the 16 MHz system
Controller
clock, provides the VMEbus arbiter and the VMEbus Bus Timer Unit, and
drives the VXIbus CLK10 signal.
W
Write
Copying data to a storage device.
Word Serial
The simplest required communication protocol supported by Message-
Protocol
Based devices in the VXIbus system. It utilizes the A16 communication
registers to transfer data using a simple polling handshake method.