National Instruments 653X User Manual
Page 132
Glossary
G-6
ni.com
M
M
Mega—the standard metric prefix for 1 million or 10
6
, when used with
units of measure such as volts and hertz
Measurement &
Automation Explorer
(MAX)
a controlled centralized configuration environment that allows you to
configure all of your National Instruments DAQ, GPIB, IMAQ, IVI,
Motion, VISA, and VXI devices
MB/s
A unit for data transfer that means one million or 10
6
bits per second
mask
the bits that are significant for pattern detection, also applies to change
detection
MSB
Most Significant Bit
P
pattern I/O
Data-transfer mode in which 653X transfers data on the falling or rising
edge of a TTL signal, typically at a constant rate
PCI
Peripheral Component Interconnect—A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. It has
achieved widespread acceptance as a standard for PCs and workstations; it
offers a theoretical maximum transfer rate of 132 MB/s.
PCLK
PCMCIA
An expansion bus architecture that has found widespread acceptance as a
de facto standard in notebook-sized computers. It originated as a
specification for add-on memory cards written by the Personal Computer
Memory Card International Association.
peripheral device
any external device connected to the 653X device that the 653X controls,
monitors, tests, or communicates with
Plug and Play ISA
a specification prepared by Micorsoft, Intel, and other PC-related
companies that will result in PCs with plug-in boards that can be fully
configured in software, without jumpers or switches on the devices
port
a collection of lines, usually eight
posttrigger
acquiring data that occurs after a trigger