Glossary
VXIpc-850 Series User Manual
Glossary -4
© National Instruments Corporation
in.
inches
I/O
input/output; the techniques, media, and devices used to achieve
communication between machines and users
INT
interrupt
INTA
PCI interrupt A
INTB
PCI interrupt B
INTC
PCI interrupt C
INTD
PCI interrupt D
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
ISA
Industry Standard Architecture denotes a common expansion bus
used in PCs
K
KB
kilobytes of memory
L
LED
Light-emitting diode
M
m
meters
master
A functional part of a VME/VXIbus device that initiates data
transfers on the backplane. A transfer can be either a read or a
write.