National Instruments NI-VXI User Manual

Page 138

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Glossary

© National Instruments Corporation

G-15

NI-VXI User Manual

V

VIC

VXI Interactive Control program, a part of the NI-VXI bus interface
software package. Used to program VXI devices, and develop and
debug VXI application programs. Called VICtext when used on text-
based platforms.

VME

Versa Module Eurocard or IEEE 1014

VMEbus Class device

Also called non-VXIbus or foreign devices when found in VXIbus

systems. They lack the configuration registers required to make them
VXIbus devices.

void

In the C language, a generic data type that can be cast to any specific
data type.

VXIbus

VMEbus Extensions for Instrumentation

VXIedit

VXI Resource Editor program, a part of the NI-VXI bus interface
software package. Used to configure the system, edit the manufacturer
name and ID numbers, edit the model names of VXI and non-VXI
devices in the system, as well as the system interrupt configuration
information, and display the system configuration information
generated by the Resource Manager. Called vxitedit when used on
text-based platforms.

VXItedit

Text based version of

VXIedit

W

Word Serial Protocol

The simplest required communication protocol supported by
message-based devices in the VXIbus system. It utilizes the A16
communication registers to perform 16-bit data transfers using a simple
polling handshake method.

word

A data quantity consisting of 16 bits.

write

Copying data to a storage device.

WR

Write Ready; a bit in the Response register of a message-based device
used in Word Serial Protocol indicating the ability for a Servant to
receive a single command/query written to its Data Low register.

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