© National Instruments Corporation Glossary-1 VXI-MXI User Manual
Glossary

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Prefix Meaning Value
n- nano- 10-9
µ- micro- 10-6
m- milli- 10-3
K- kilo- 103
M- mega- 106
g- giga- 109

Symbols

° degrees
ohms
% percent
± plus or minus
A
A amperes
A16 Space VXIbus address space equivalent to the VME 64 KB short address space.
In VXI, the upper 16 KB of A16 space is allocated for use by VXI devices
configuration registers. This 16 KB region is referred to as VXI
Configuration space.
A24 Space VXIbus address space equivalent to the VME 16 MB standard address
space.
A32 Space VXIbus address space equivalent to the VME 4 GB extended address
space.
ACFAIL* A VMEbus backplane signal that is asserted when a power failure has
occurred (either AC line source or power supply malfunction), or if it is
necessary to disable the power supply (such as a high temperature
condition).
Address Character code that identifies a specific location (or series of locations) in
memory.