National Instruments VXI-MXI-Express Series User Manual page 75

Glossary
Symbol
p
n
μ
m
k
M
G
T
Symbols
°
Ω
A
A
address
address modifier
address space
ANSI
© National Instruments
Prefix
pico
nano
micro
milli
kilo
mega
giga
tera
degrees
ohms
amperes
Character code that identifies a specific location (or series of locations) in
memory. In VISA, it identifies a resource.
One of six signals in the VMEbus specification used by VMEbus masters
to indicate the address space in which a data transfer is to take place.
n
A set of 2 memory locations differentiated from other such sets in
VXI/VMEbus systems by six addressing lines known as address modifiers.
n is the number of address lines required to uniquely specify a byte location
in a given space. Valid numbers for n are 16, 24, 32, and 64. In VME/VXI,
because there are six address modifiers, there are 64 possible address spaces.
American National Standards Institute
Glossary-1
Value
10 –12
10 –9
– 6
10
10 –3
10 3
6
10
10 9
10 12
VXI-MXI-Express Series User Manual