Glossary
VXI/VMEpc 600 Series for Windows 95/NT
G-4
©
National Instruments Corporation
embedded controller
An intelligent CPU (controller) interface plugged directly into the VXI
backplane, giving it direct access to the VXIbus. It must have all of its
required VXI interface capabilities built in.
F
fair requester
A VXIbus device that will not arbitrate for the VXIbus after releasing it
until it detects the bus request signal inactive. This ensures that all
requesting devices will be granted use of the bus.
G
GPIB
General Purpose Interface Bus (IEEE 488)
H
hex
hexadecimal; the numbering system with base 16, using the digits 0 to 9
and letters A to F
Hz
hertz; cycles per second
I
IEEE
Institute of Electrical and Electronics Engineers
I/O
input/output; the techniques, media, and devices used to achieve
communication between machines and users
instrument driver
A set of routines designed to control a specific instrument or family of
instruments, and any necessary related files for LabWindows/CVI or
LabVIEW
interrupt
A means for a device to request service from another device
interrupt handler
A VMEbus functional module that detects interrupt requests generated by
interrupters and responds to those requests by requesting status and identify
information
interrupt level
The relative priority at which a device can interrupt
IRQ*
Interrupt signal
