PXIe-7962R Virtex-5 SX50T FlexRIO FPGA Module
Земля PXIe-7962R, also listed as the PXIe-7962, is a PXI Express FlexRIO FPGA module for custom high-speed data acquisition, real-time signal processing, protocol implementation and hardware-in-the-loop testing. It combines a user-programmable Xilinx Virtex-5 SX50T FPGA with 512 MB of onboard DRAM and a high-speed interface for compatible FlexRIO adapter modules.
The PXIe-7962R does not provide fixed analog or digital measurement channels by itself. An installed FlexRIO adapter module determines the external I/O type, channel count, sample rate, resolution, voltage range and connector configuration. This architecture allows engineers to create application-specific instruments using a common FPGA carrier.
Key Features of the PXIe-7962R
- Xilinx Virtex-5 SX50T user-programmable FPGA
- 8,160 FPGA slices
- 32,640 lookup tables and flip-flops
- 288 DSP48 arithmetic slices
- 4,752 kbits of embedded block RAM
- 512 MB onboard DRAM
- Two independent 256 MB DRAM banks
- Up to 1.6 GB/s bandwidth per DRAM bank
- 132 single-ended I/O lines or 66 differential LVDS pairs
- PCI Express Gen 1 ×4 backplane link
- More than 800 MB/s module streaming capability
- More than 1.4 GB/s aggregate bidirectional streaming
- Up to 16 DMA data streams
- Peer-to-peer data streaming support
- PXIe_CLK100 reference-clock support
- LabVIEW FPGA programming support
PXIe-7962R Technical Specifications
| Product Model | PXIe-7962R / PXIe-7962 |
|---|---|
| Part Number | 781206-01 |
| Product Type | PXI Express FlexRIO FPGA module |
| ФПГА | Xilinx Virtex-5 SX50T |
| FPGA Slices | 8,160 |
| Lookup Tables and Flip-Flops | 32,640 |
| DSP48 Slices | 288 |
| DSP Multiplier Size | 25 × 18 bits |
| Embedded Block RAM | 4,752 kbits |
| Onboard DRAM | 512 MB total |
| DRAM Configuration | Two banks, 256 MB per bank |
| DRAM Bandwidth | Up to 1.6 GB/s per bank |
| Adapter-Module Interface | 132 single-ended lines or 66 differential LVDS pairs |
| PXI Backplane Interface | PCI Express Gen 1 ×4 |
| Default FPGA Timebase | 40 MHz |
| Reference Clock | PXI Express 100 MHz reference clock, PXIe_CLK100 |
| Timebase Accuracy | ±50 ppm |
| Streaming Rate | More than 800 MB/s into or out of the module |
| Simultaneous Bidirectional Streaming | More than 700 MB/s per direction |
| Aggregate Bidirectional Rate | More than 1.4 GB/s |
| Maximum DMA Streams | Up to 16 |
| Peer-to-Peer Streaming | Supported |
| Programming Environment | LabVIEW FPGA Module |
| Device Driver | NI FlexRIO |
| Operating Temperature | 0°C to 55°C |
| Dimensions | Approximately 16.1 cm × 10.8 cm |
| Weight | Approximately 213 g |
| Module Format | 3U PXI Express module |
| Product Status | Discontinued |
PXIe-7962R Part Number and Identification
| Identifier Type | Number | Описание |
|---|---|---|
| Orderable Part Number | 781206-01 | PXIe-7962R FlexRIO FPGA module with Virtex-5 SX50T and 512 MB RAM |
| Assembly Number | 198733-01L | PXIe-7962R circuit-card assembly with 66 LVDS pairs and SX50T FPGA |
Use 781206-01 when requesting a quotation for the complete module. The 198733-01L number identifies the circuit-card assembly and is not normally used as the commercial ordering number.
FlexRIO Modular Architecture
The FlexRIO architecture separates FPGA processing from application-specific I/O. The PXIe-7962R supplies the FPGA, onboard memory, timing resources and PXI Express communication, while a compatible adapter module provides the required external signal interface.
This modular approach allows the PXIe-7962R to support applications involving analog input, analog output, high-speed digital I/O, RF conversion and camera connectivity. The available functionality depends entirely on the selected adapter.
Virtex-5 SX50T FPGA
The PXIe-7962R uses a Xilinx Virtex-5 SX50T FPGA optimized for digital signal processing. FPGA algorithms execute directly in hardware, providing deterministic timing and parallel operation without relying on operating-system scheduling.
The SX50T target provides enough resources for many legacy acquisition, generation, filtering, protocol and control applications while consuming fewer resources than the larger SX95T devices used in the PXIe-7965R and PXIe-7966R.
8,160 FPGA Slices
The FPGA contains 8,160 slices that can implement state machines, timing engines, data routing, custom protocols and real-time control logic. NI documentation also describes the device as providing 32,640 lookup tables and flip-flops.
Usable capacity depends on the FPGA program, clock rates, data types, memory configuration and compilation optimization. Review the compilation report to determine actual resource utilization.
288 DSP48 Slices
The PXIe-7962R provides 288 DSP48 slices for hardware-accelerated multiplication and signal-processing operations. These resources support finite impulse response filters, mixers, digital downconversion and other mathematical algorithms.
DSP slices can operate in parallel, allowing the FPGA to process multiple samples or channels simultaneously when the design and clock rate permit.
Embedded Block RAM
The Virtex-5 SX50T includes 4,752 kbits of embedded block RAM. This low-latency FPGA memory can implement FIFOs, lookup tables, delay lines, buffers and temporary algorithm storage.
Block RAM offers deterministic access but has limited capacity. Larger waveform buffers and data sets should normally be stored in the module’s external DRAM.
512 MB Onboard DRAM
The PXIe-7962R includes 512 MB of onboard DRAM divided into two independent 256 MB banks. Each bank can provide bandwidth up to approximately 1.6 GB/s under supported access conditions.
The DRAM can store acquired waveforms, generation data or intermediate processing results. Using separate banks can help distribute memory traffic and support simultaneous acquisition and processing operations.
Efficient DRAM Programming
External DRAM has greater capacity than FPGA block RAM but also has higher access latency. FPGA applications should use suitable request, retrieval and buffering logic to maintain throughput.
Invalid address ranges and poorly structured access patterns can cause errors or reduce performance. Enable and monitor error terminals when developing custom DRAM interfaces.
132 Single-Ended or 66 Differential Lines
The interface between the PXIe-7962R and its adapter module provides 132 single-ended I/O lines that can also be configured as 66 differential LVDS pairs.
These lines are part of the internal FlexRIO adapter interface. They are not directly accessible as front-panel digital I/O unless the installed adapter module provides the required external connections and electrical conditioning.
Compatible FlexRIO Adapter Modules
The PXIe-7962R can be paired with compatible first-generation FlexRIO adapter modules. Examples include digitizers, signal generators, high-speed digital modules and camera-interface adapters.
One documented system configuration combines the PXIe-7962R with the NI-6585 200 MHz, 32-channel LVDS digital adapter. Compatibility must still be verified for the specific adapter, driver version and LabVIEW FPGA project.
Adapter Module Determines Measurement Specifications
The PXIe-7962R does not independently define analog sample rate, resolution, voltage range or digital logic levels. Those specifications are determined by the attached adapter module.
When ordering a complete FlexRIO system, identify both the FPGA carrier and adapter. The PXIe-7962R alone cannot directly acquire or generate an external signal.
PCI Express Gen 1 ×4 Interface
The PXIe-7962R communicates with the PXI Express backplane through a PCI Express Gen 1 ×4 link. This connection supports high-speed transfer between the FPGA module and the PXI controller.
Actual host-transfer performance depends on the chassis topology, controller, slot bandwidth, DMA configuration and efficiency of the FPGA and host applications.
Высокоскоростная потоковая передача данных
The PXIe-7962R can stream data at more than 800 MB/s into or out of the module in a supported PXI Express system. The FPGA determines how data is formatted, buffered and distributed across the available DMA channels.
When streaming in both directions simultaneously, the module can exceed 700 MB/s per direction and achieve an aggregate rate above 1.4 GB/s.
Up to 16 DMA Streams
The PXIe-7962R supports as many as 16 DMA channels. Separate channels can carry raw acquisition data, processed results, generation waveforms and control information.
The total throughput remains limited by the module and system data path. Adding more DMA streams divides the available bandwidth rather than increasing the physical link capacity.
Peer-to-Peer Streaming
NI peer-to-peer technology allows the PXIe-7962R to exchange data directly with compatible PXI Express instruments without routing every transfer through the controller CPU and host memory.
A compatible digitizer can stream acquired samples directly to the FPGA for processing. The FPGA can then transfer the processed information to another supported instrument or return a reduced data set to the controller.
Benefits of FPGA Peer-to-Peer Processing
Direct instrument-to-instrument transfer can reduce host workload and system latency. It is useful for real-time signal processing, closed-loop testing, high-speed triggering and applications that generate more raw data than the controller should process continuously.
Peer-to-peer operation depends on the chassis topology, compatible writer and reader endpoints, driver versions and FPGA configuration.
PXI Express Тайминг и Синхронизация
The module uses the PXIe_CLK100 reference clock and provides a default FPGA timebase of 40 MHz. FPGA-derived clocks can be created for application-specific processing and I/O timing.
PXI trigger resources allow the FPGA program to coordinate events with digitizers, waveform generators and other instruments installed in the same chassis.
Deterministic Hardware Processing
FPGA algorithms execute with clock-cycle timing and do not depend on software thread scheduling. This makes the PXIe-7962R useful for precise triggering, custom protocols and low-latency decision-making.
Multiple processing functions can operate concurrently, including acquisition, filtering, event detection, memory access and DMA transfer.
LabVIEW FPGA Programming
The PXIe-7962R is programmed using the LabVIEW FPGA Module and compatible NI FlexRIO software. Developers create FPGA logic, compile it for the Virtex-5 SX50T target and download the resulting bitfile to the module.
Recompiling older projects may require a compatible legacy LabVIEW FPGA release and Xilinx compilation tools. Verify the complete software stack before upgrading an established system.
Existing FPGA Bitfiles
A previously compiled bitfile may continue to run without recompilation when the module, adapter, NI FlexRIO driver and host application remain compatible.
Bitfiles are compiled for a specific FPGA target and adapter configuration. A file created for the PXIe-7965R, PXIe-7966R or newer Kintex-7 module should not be loaded onto the PXIe-7962R unless the project is migrated and recompiled.
Typical PXIe-7962R Applications
- Высокоскоростной сбор данных
- Inline digital signal processing
- Custom digital protocol implementation
- High-speed digital I/O
- Software-defined radio processing
- Radar and communications testing
- Machine vision and camera interfacing
- Hardware-in-the-loop testing
- Real-time triggering and event detection
- Peer-to-peer instrument streaming
- Research instrumentation
- Laboratory automation
High-Speed Data Acquisition
When combined with a compatible digitizer adapter, the PXIe-7962R can acquire and process data directly in the FPGA. Algorithms can filter, decimate, trigger or reduce the information before it is sent to the controller.
This FPGA preprocessing reduces host bandwidth when the application only needs detected events, calculated parameters or selected waveform segments.
Real-Time Signal Processing
The 288 DSP48 slices can implement parallel filtering, mixing and mathematical processing. Incoming samples can be processed continuously with deterministic timing.
Typical algorithms include finite impulse response filtering, digital downconversion, pulse detection and custom modulation processing.
Custom Digital Interfaces
With an appropriate digital adapter, the PXIe-7962R can implement proprietary and nonstandard communication protocols. FPGA logic provides direct control over timing, framing and signal-response behavior.
This capability is valuable when testing devices that cannot be addressed by a conventional digital pattern instrument.
Machine Vision Applications
A compatible camera adapter allows the module to receive and process image data in hardware. FPGA logic can perform thresholding, region extraction and other pixel-level operations before image data reaches the controller.
Verify the camera standard, adapter compatibility and required pixel-data rate when configuring the system.
Hardware-in-the-Loop Testing
The PXIe-7962R can execute deterministic control logic and custom signal-processing functions within a hardware-in-the-loop platform. Peer-to-peer transfer can connect the FPGA with supported digitizers and signal generators.
System latency depends on the adapter, FPGA program, memory access and communication architecture.
PXIe-7962R Troubleshooting
The PXIe-7962R Is Not Detected in NI MAX
Confirm that the module is fully installed in a compatible PXI Express slot. Check chassis power, controller communication and the installed NI FlexRIO software, then rescan the system in NI Measurement & Automation Explorer.
The Adapter Module Is Not Recognized
Verify that the adapter is compatible and correctly attached to the PXIe-7962R. Check the adapter documentation and required FlexRIO driver version.
The FPGA Bitfile Will Not Download
Confirm that the bitfile was compiled for the PXIe-7962R and the installed adapter. A bitfile built for a different FPGA carrier cannot normally be used.
The FPGA Project Does Not Compile
Check the LabVIEW, LabVIEW FPGA, NI FlexRIO and Xilinx tool versions. Virtex-5 targets may require a legacy compilation environment.
DMA Throughput Is Lower Than Expected
Review DMA buffer sizes, controller performance, chassis topology, host memory allocation and FPGA loop timing. Confirm that the selected slot provides a suitable PXI Express data path.
Onboard DRAM Access Produces Errors
Check the memory address range, request sequence, retrieval logic and buffering. Monitor error terminals to identify invalid or out-of-range accesses.
Peer-to-Peer Streaming Does Not Start
Confirm that both instruments support NI peer-to-peer streaming and that the chassis provides a valid route. Check endpoint configuration, FIFO data type and writer-to-reader compatibility.
The FPGA Design Exceeds Available Resources
Review lookup-table, flip-flop, DSP and block-RAM use in the compilation report. Reduce parallel logic, reuse arithmetic resources or move large buffers to onboard DRAM.
Timing Requirements Are Not Met
Review the critical paths in the FPGA compilation report. Reduce combinational complexity, add pipelining or use additional clock cycles where permitted.
The Module Becomes Unstable During Continuous Processing
Check chassis airflow and fan configuration. Sustained FPGA processing, DRAM traffic and high-speed adapter operation can increase thermal load.
PXIe-7962R Comparison with Similar FlexRIO FPGA Modules
| Модель | FPGA and Memory | Best Suited For |
|---|---|---|
| PXIe-7961R | Virtex-5 SX50T, no onboard DRAM | SX50T applications that do not require large waveform buffers |
| PXIe-7962R | Virtex-5 SX50T, 512 MB DRAM | Legacy signal-processing applications requiring external FPGA memory |
| PXIe-7965R | Virtex-5 SX95T, 512 MB DRAM | Applications requiring more FPGA and DSP resources |
| PXIe-7966R | Virtex-5 SX95T-2, 512 MB DRAM | Highest-performance target in the PXIe-796x family |
| PXIe-7976R | Kintex-7 K410T, 2 GB DRAM | Newer applications requiring substantially more processing and memory |
PXIe-7962R vs PXIe-7961R
The PXIe-7962R and PXIe-7961R use the same Virtex-5 SX50T FPGA. The primary difference is that the PXIe-7962R includes 512 MB of onboard DRAM, while the PXIe-7961R does not provide external DRAM.
Choose the PXIe-7962R when the application requires large acquisition buffers, waveform storage or intermediate processing memory.
PXIe-7962R vs PXIe-7965R
Земля PXIe-7965R uses a larger Virtex-5 SX95T FPGA with 14,720 slices, 640 DSP48 slices and 8,784 kbits of block RAM. Both modules include 512 MB of DRAM.
Select the PXIe-7965R for larger algorithms and more parallel DSP processing. Choose the PXIe-7962R when its SX50T resources are sufficient for the validated legacy application.
PXIe-7962R vs PXIe-7966R
Земля PXIe-7966R uses the larger SX95T FPGA with a faster -2 speed grade. It provides more than twice the DSP48 resources of the PXIe-7962R.
The PXIe-7966R is preferable for complex high-throughput signal processing. The PXIe-7962R provides a lower-resource SX50T target with the same total DRAM capacity.
PXIe-7962R vs PXIe-7976R
Земля PXIe-7976R uses a newer Kintex-7 K410T FPGA, includes 2 GB of DRAM and provides substantially greater FPGA and data-transfer performance.
NI identified the PXIe-7976R as a replacement path for discontinued PXIe-7962R systems. Migration generally requires FPGA-code modification, recompilation and compatibility testing.
Recommended Related Products
- PXIe-7961R Virtex-5 SX50T FlexRIO FPGA Module
- PXIe-7965R Virtex-5 SX95T FlexRIO FPGA Module
- PXIe-7966R Virtex-5 SX95T-2 FlexRIO FPGA Module
- PXIe-7972R Kintex-7 FlexRIO FPGA Module
- PXIe-7976R Kintex-7 K410T FlexRIO FPGA Module
- NI-6585 200 MHz LVDS FlexRIO Adapter Module
- View More NI PXI and PXI Express Modules
Selecting the Right FlexRIO FPGA Module
Choose the PXIe-7962R when maintaining an existing system developed for the Virtex-5 SX50T target and the application requires 512 MB of onboard DRAM.
Select the PXIe-7965R or PXIe-7966R when more Virtex-5 processing resources are required. For new designs, consider the PXIe-7976R or a current FlexRIO integrated-I/O module, subject to adapter and software compatibility.
Purchasing a Discontinued PXIe-7962R
The PXIe-7962R is discontinued and no longer manufactured by NI. Available inventory may consist of unused surplus, previously installed or refurbished modules.
Before ordering, verify the 781206-01 part number, serial number, adapter compatibility and software requirements. A used module should be tested for PXI detection, FPGA bitfile download, both DRAM banks, DMA transfer, peer-to-peer communication and adapter operation.
Why Choose the PXIe-7962R?
- Maintains compatibility with legacy SX50T FlexRIO applications
- Provides 288 DSP48 slices for real-time processing
- Includes 512 MB of onboard DRAM
- Supports modular analog, digital and camera I/O adapters
- Streams more than 800 MB/s in supported systems
- Supports up to 16 DMA channels
- Provides peer-to-peer instrument communication
- Supports deterministic FPGA timing and control
- Integrates with LabVIEW FPGA and PXI Express systems
Frequently Asked Questions
What Is the PXIe-7962R?
The PXIe-7962R is a PXI Express FlexRIO FPGA carrier module with a Virtex-5 SX50T FPGA and 512 MB of onboard DRAM.
Are PXIe-7962 and PXIe-7962R the Same Product?
Yes. Some listings omit the R, but both names refer to the same reconfigurable FlexRIO FPGA module.
What Is the PXIe-7962R Part Number?
The standard commercial part number is 781206-01.
Which FPGA Does the PXIe-7962R Use?
The module uses a Xilinx Virtex-5 SX50T FPGA with 8,160 slices and 288 DSP48 resources.
How Much DRAM Does It Provide?
It provides 512 MB divided into two independent 256 MB banks.
What Is the DRAM Bandwidth?
Each DRAM bank supports bandwidth up to approximately 1.6 GB/s under supported conditions.
Does the PXIe-7962R Include Analog Inputs?
No fixed analog inputs are included on the FPGA carrier. Analog or digital I/O is supplied by a compatible FlexRIO adapter module.
How Many Adapter Interface Lines Are Available?
The adapter interface provides 132 single-ended lines that can also operate as 66 differential LVDS pairs.
Does It Support Peer-to-Peer Streaming?
Yes. The PXIe-7962R can exchange data directly with compatible PXI Express instruments in a supported chassis configuration.
What Is the Maximum Streaming Rate?
The module can exceed 800 MB/s in one direction. Simultaneous bidirectional operation can exceed 700 MB/s per direction.
Which Software Is Required?
FPGA development normally requires compatible NI FlexRIO, LabVIEW and LabVIEW FPGA software, together with the appropriate Xilinx compilation tools.
Can a PXIe-7962R Bitfile Run on a PXIe-7976R?
No direct compatibility should be assumed. The PXIe-7976R uses a different FPGA architecture, so the project generally must be migrated and recompiled.
What Replaced the PXIe-7962R?
NI identified the PXIe-7976R as the replacement path, although FPGA code, adapter and software compatibility must be evaluated.
Is the PXIe-7962R Still Manufactured?
No. The PXIe-7962R is obsolete and availability is generally limited to surplus or previously installed equipment.
Request a Quote for the PXIe-7962R
Contact us for current availability, condition and project pricing for the PXIe-7962R Virtex-5 SX50T FlexRIO FPGA Module. We can also help verify the 781206-01 part number, adapter compatibility, software requirements and suitable PXIe-7976R migration options for your system.
