Glossary
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National Instruments Corporation G-7 VXI/VMEpc 600 Series for Windows 95/NT
SIMM Single In-line Memory Module
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
SMB Sub Miniature Type B connector that features a snap coupling for fast
connection
System Controller a device configured for installation in Slot 0 of a VXIbus mainframe or
Slot1 of a VMEbus chassis. This device is unique in the VXI/VMEbus
system in that it performs the VXI/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 VXI/VMEbus backplane, orboth.
T
trigger Either TTL or ECL lines used for intermodule communication
TTL Transistor-Transistor Logic
U
user window A region of address space reserved by the VXI/VMEpc for usevia the
NI-VXI low-level function calls. MapVXIAddress() uses this address
space to allocate regions for use by the VXIpeek() and VXIpoke()
macros.
V
VIC VXI Interactive Control Program, a part of the NI-VXI bus interface
software. Used to program VXI devices, and develop and debug VXI
application programs.
VISA Virtual Instrument Soft ware Architecture. This is the gener al name give n to
VISA and its associated architecture. The architecture consists of two main
VISA components: the VISA Resource Manager and the VISA Instrument
Control Resources.