Glossary
PCI-Based MXI-2 Interface for Windows
G-8
ni.com
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
S
s
seconds
Servant
A device controlled by a Commander; there are message-based and
register-based Servants
Shared Memory
Protocol
A communication protocol that uses a block of memory accessible to both
a client and a server. The memory block operates as a message buffer for
communications. This is unique to register-based interfaces such as VXI.
SIMM
Single In-line Memory Module
slave
A functional part of a MXI/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
slave-mode operation
A device is in slave mode it if is responding to a bus cycle.
Slot 0 device
A device configured for installation in Slot 0 of a VXIbus mainframe. This
device is unique in the VXIbus system in that it performs the VMEbus
System Controller functions, including clock sourcing and arbitration for
data transfers across the backplane. Installing such a device into any other
slot can damage the device, the VXIbus backplane, or both.
SODIMM
Small Outline Dual In-line Memory Module
statically configured
device
A device whose logical address cannot be set through software; that is, it is
not dynamically configurable
SYSFAIL
A VMEbus signal that is used by a device to indicate an internal failure.
A failed device asserts this line. In VXI, a device that fails also clears its
PASSed bit in its Status register.
