National Instruments IMAQ PCI-1407 User Manual page 49

protocol
PXI
R
RAM
real time
relative accuracy
resolution
ROI
ROM
RS-170
RSE
RTSI bus
S
scaling down circuitry
scatter-gather DMA
© National Instruments Corporation
The exact sequence of bits, characters, and control codes used to transfer
data between computers and peripherals through a communications
channel.
PCI eXtensions for Instrumentation. An open specification that builds on
the CompactPCI specification by adding instrumentation-specific features.
Random-access memory.
A property of an event or system in which data is processed as it is acquired
instead of being accumulated and processed at a later time.
A measure in LSB of the accuracy of an ADC; it includes all nonlinearity
and quantization errors but does not include offset and gain errors of the
circuitry feeding the ADC.
The smallest signal increment that can be detected by a measurement
system. Resolution can be expressed in bits, in proportions, or in
percent of full scale. For example, a system has 12-bit resolution, one
part in 4,096 resolution, and 0.0244 percent of full scale.
Region of interest. A hardware-programmable rectangular portion of the
acquisition window.
Read-only memory.
The U.S. standard used for black-and-white television.
Referenced single-ended. All measurements are made with respect to a
common reference measurement system or a ground. Also called a
grounded measurement system.
Real-Time System Integration Bus. The National Instruments timing bus
that connects IMAQ and DAQ boards directly, by means of connectors on
top of the boards, for precise synchronization of functions.
Circuitry that scales down the resolution of a video signal.
A type of DMA that allows the DMA controller to reconfigure on-the-fly.
G-9
Glossary
IMAQ PCI/PXI-1407 User Manual