National Instruments VXI-USB User Manual

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Glossary
© National Instruments Corporation
G-7
NI-VXI
The National Instruments bus interface software for VME/VXIbus 
systems.
Non-Slot 0 device
A device configured for installation in any slot in a VXIbus mainframe 
other than Slot 0. Installing such a device into Slot 0 can damage the device, 
the VXIbus backplane, or both.
P
PCI
Peripheral Component Interconnect. The PCI bus is a high-performance 
32-bit or 64-bit bus with multiplexed address and data lines.
R
register-based device
A Servant-only device that supports VXIbus configuration registers. 
Register-based devices are typically controlled by message-based devices 
via device-dependent register reads and writes.
Resman
The name of the National Instruments Resource Manager in NI-VXI bus 
interface software. See Resource Manager.
Resource Manager
A message-based Commander located at Logical Address 0, which 
provides configuration management services such as address map 
configuration, Commander and Servant mappings, and self-test and 
diagnostic management.
retry
An acknowledge by a destination that signifies that the cycle did not 
complete and should be repeated.
RMS
Root mean squared. See 
.
S
s
seconds
slave
A functional part of a VME/VXIbus device that detects data transfer cycles 
initiated by a VMEbus master and responds to the transfers when the 
address specifies one of the device’s registers.