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National Instruments VXI/VME 600 User Manual

Page 53

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Glossary

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National Instruments Corporation

G-5

VXI/VMEpc 600 Series for Windows 95/NT

K

KB

kilobytes of memory

L

LED

light-emitting diode

logical address

An 8-bit number that uniquely identifies each VXIbus device in a system.
It defines the A16 register address of a device, and indicates Commander
and Servant relationships.

M

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.

MB

megabytes of memory

MBD

Message-Based Device

message-based device

An intelligent device that implements the defined VXIbus registers and
communication protocols. These devices are able to use Word Serial
Protocol to communicate with one another through communication
registers.

MITE

A National Instruments custom ASIC, a sophisticated dual-channel DMA
controller that incorporates the Synchronous MXI and VME64 protocols to
achieve high-performance block transfer rates

N

NI-488 or NI-488.2

The National Instruments software for GPIB systems

NI-DAQ

The National Instruments software for data acquisition instruments

NI-VISA

The National Instruments implementation of the VISA standard; an
interface-independent software that provides a unified programming
interface for VXI, GPIB, and serial instruments

NI-VXI

The National Instruments bus interface software for VME/VXIbus systems