Glossary
Glossary-4
VX4792 User Manual
Query
A form of command that allows for inquiry to obtain status or data.
Register Based Device
A servant-only device which supports VXIbus configuration registers, but
not high level VXIbus communication protocols. Register based devices are
typically controlled by a commander via device-dependent register reads and
writes.
Resource Manager
A message based commander that provides configuration management
services such as configuring the address map, determining system hierarchy,
allocating shared system resources, performing system self-test diagnostics,
and initializing system commanders.
Self Calibration
A routine that verifies the basic calibration of the instrument module circuits,
and adjusts the calibration to compensate for short- and long-term variables.
Self Test
A set of routines that test the operational functionality of the instrument
module. These routines are performed on power-on, and on command.
Sequence File
An assembly of individual waveform files serially ordered to create a desired
test pattern.
Servant
A device that is controlled by a commander. There are message-based and
register-based servants.
Slot
A a position where a module can be inserted into a VXIbus backplane. Each
slot provides the 96-pin J connectors to interface with one, two, or three P
connectors on the VXI module.
Slot 0 Controller
See Slot 0 Module. See also Resource Manager.
Slot 0 Module
A VXIbus device that provides the minimum VXIbus Slot 0 services to slots
1–12 (CLK10 and the MODID module identify lines). The Slot 0 Module
may also provide other VXIbus services such as CLK100, SYNC100,
STARBUS, and trigger control.
System Hierarchy
The tree structure of the commander/servant relationships of all devices in
the system at a given time. In the VXIbus structure, each servant has a
commander. A commander may also have a commander.
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