Glossary

A16 registers

Address space using 16 address lines. The VXI definition gives each VXI module 64 bytes of A16 registers.

A24 registers

Address space using 24 address lines. VXI modules can configure how much A24 address space they use.

arbitrary source

A signal source capable of producing an arbitrary waveform according to the way it is programmed.

arbitration bus

See DTB arbitration bus.

ASCII

American Standard Code for Information Interchange, a standard format for data or commands.

backplane

A set of lines that connects all the modules in a VXI system.

baseband

A band in the frequency spectrum that begins at zero. In contrast a zoomed band is centered on a specified center frequency.

block mode

A mode of data-collecting used in instruments such as the HP E1431A. The instrument stops taking data as soon as a block of data has been collected. Overlap block mode in the HP E1432A and HP 1433A can be configured to act exactly like block mode.

block size

The number of sample points in a block of data.

breakout box

Another name for the 8-channel input connector.

C-Library (interface library)

A library of functions, written in C language, which can be used to operate the HP E1432A and HP E143A.

G-1