Glossary
Getting Started with Your VXIpc 800/700
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
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
