VT1433B User's Guide

Register Definitions

￿IRQ Status Register: This read-only register indicates the reason for asserting the VME Bus interrupt. The format of the data is identical to that of the Status/ID word returned by an interrupt acknowledge (IACK) cycle. It differs from the IACK cycle in that the IACK cycle will clear the status bits and cause the de-assertion of the IRQ line. The register has the following format:

Bit

15-8

7-0

Contents

Status

Logical

Address

 

 

Status: Each of these bits indicates the status of a cause of interrupt. A one (1) in a bit position indicates that the corresponding source is actively requesting and interrupt.

Logical Address: This is the device’s current logical address.

￿IRQ Reset Register: This register is used to resent the interrupt function. It has the following format:

Bit

15-8

7-0

Contents

Reset

Unused

Bits

 

 

Reset Bits: Writing a one (1) to any of these bits will clear the corresponding bit in the IRQ status register. This will not disable subsequent interrupt generation. Clearing all of the IRQ status bits will cause the de-assertion of the IRQ line. Writing a zero (0) has no effect.

￿Ram 0-1: These are 32-bit general purpose RAM locations which are also accessible to the on-board DSP. See the following section regarding D16/D08 access of 32-bit registers.

￿Send Data Register: Reading this register gets the next available word from the measurement data FIFO. The measurement data FIFO is a 32-bit device. See the following section regarding D16/D08 access of 32-bit registers.

￿Receive Data Register: Writing to this register puts a word into the source data FIFO. The source data FIFO is a 32-bit device. See the following section regarding D16/D08 access of 32-bit registers.

￿Count Register: The Count register contains an unsigned 16-bit integer which is the number of 16-bit words of data which are currently available from the Send Data register or which the Receive Data register is currently ready to accept. While a device is generating or accepting data, the Count register may indicate fewer than the actual number of words available.

￿Query Response/Command Register: This register is used to send commands to and receive responses from the device. It is implemented as a 32-bit RAM location. Writing the least significant byte (highest address) clears the Command/Parameter Ready and Query Response Ready bits in the status register and interrupts the on-board DSP. See the following section regarding D16/D08 access of 32-bit registers and the communication protocol.

A-9

Page 183
Image 183
VXI VT1433B manual Bit 15-8 Contents Status Logical Address

VT1433B specifications

The VXI VT1433B is a versatile and sophisticated instrument designed for testing and measurement applications, particularly in the realm of telecommunications and electronics. Designed with the needs of engineers in mind, it brings a comprehensive set of features and technologies that enable accurate and efficient performance.

One of the standout features of the VT1433B is its ability to function as a high-performance data acquisition system. With up to 32 input channels, users can capture a wide range of signals simultaneously. This capability is particularly beneficial for applications requiring the monitoring of multiple parameters or systems concurrently, such as in complex electronic testing scenarios.

The VT1433B utilizes advanced technology for signal processing and analysis. Equipped with high-resolution analog-to-digital converters, the unit ensures precise measurement of various signal types, including voltage, current, and frequency. This precision is critical for engineers who rely on accurate data to make informed decisions during the design and testing phases.

In addition to its measurement capabilities, the VT1433B also supports multiple communication protocols, including GPIB, USB, and LAN, allowing for easy integration into existing test systems. This flexibility enhances its usability in both laboratory settings and field operations, where different setups may be required.

The instrument also comes with a user-friendly interface, featuring a clear display and intuitive controls that simplify operation. This design consideration allows users, regardless of their experience level, to navigate the system seamlessly and access the features they need without unnecessary delays.

Moreover, the VT1433B incorporates robust software support, including various programming tools and libraries. This aspect allows for easy implementation of automated test sequences and extensive data analysis capabilities, streamlining the workflow significantly.

Another notable characteristic of the VT1433B is its reliability and durability, designed to withstand the rigors of continuous use in demanding environments. It is engineered to operate under a broad range of temperatures and conditions, making it suitable for diverse applications, from laboratory research to field testing.

In summary, the VXI VT1433B stands out as a comprehensive testing solution, characterized by its extensive input channels, high precision measurement capabilities, multi-protocol communication, user-friendly interface, and robust software support. This combination of features and technologies makes it an invaluable tool for engineers and researchers looking to optimize their testing and data acquisition processes in various fields.