Glossary
PCI-Based MXI-2 Interface for Windows
G-6
ni.com
M
m
meters
master
A functional part of a MXI/VME/VXIbus device that initiates data transfers
on the backplane. A transfer can be either a read or a write.
master-mode
operation
A device is in master mode if it is performing a bus cycle which it initiated
MAX
Measurement & Automation Explorer
MB
Megabytes of memory
MBLT
Eight-byte block transfers in which both the Address bus and the Data bus
are used to transfer data
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
MXI-2
The second generation of the National Instruments MXIbus product line.
MXI-2 expands the number of signals on a standard MXIbus cable by
including VXI triggers, all VXI interrupts, CLK10, SYSFAIL*,
SYSRESET*, and ACFAIL*. MXI-2 also defines new higher-performance
data transfer protocols.
MXIbus
Multisystem eXtension Interface Bus; a high-performance communication
link that interconnects devices using round, flexible cables
MXIbus System
Controller
A functional module that has arbiter, daisy-chain driver, and MXIbus cycle
timeout responsibility. Always the first device in the MXIbus daisy-chain
N
NI-488 or NI-488.2
The National Instruments software for GPIB systems
NI-DAQ
The National Instruments software for data acquisition instruments
