The NI PCI-7811/PCI-7811R is a digital reconfigurable I/O (RIO) device built on a Xilinx Virtex-II 1M gate FPGA, delivering flexible, user-programmable I/O for custom digital acquisition, waveform generation, and real-time control applications. The onboard FPGA enables custom hardware personalities without requiring extensive HDL expertise, leveraging the LabVIEW FPGA Module for rapid development.
Technical Specifications
FPGA Resources
• Xilinx Virtex-II 1M gate with 10,240 flip-flops, 10,240 4-input LUTs, 40 18×18 multipliers, and 720 Kbits block RAM
• Maximum clock rate: 40 MHz
• Onboard memory: 80 KB with DMA data streaming
Digital I/O
• 160 TTL-compatible channels configurable as inputs, outputs, counters, timers, PWM, encoder inputs, or custom protocols
• Logic levels: 3.3 V or 5 V selectable
• Source/sink current: 4.0 mA per channel
• Programmable power-on state per channel
• Integrated short-circuit protection on up to eight output lines simultaneously
System Interface
• PCI bus connector
• Four 68-pin VHDCI female connectors for I/O
• Three DMA channels supporting interrupts, DMA, and programmed I/O data transfer modes
• Power consumption: 650 mA typical
– Key Features
• User-programmable FPGA enables onboard processing and hardware-timed decision logic
• DMA-capable architecture for efficient high-speed data streaming
• Flexible I/O configuration: each channel independently definable without board redesign
• Integrated timing and synchronization resources via onboard clock
– Typical Applications
• Custom digital data acquisition with hardware-timed precision
• High-speed waveform generation and PWM output
• Sensor simulation and hardware-in-the-loop (HIL) testing
• Custom digital communication protocol implementation
• Bit error rate testing and pulse code modulation (PCM) for remote telemetry
– Compatibility & Integration
Software
• LabVIEW FPGA Module 7.1 or later required for custom FPGA VI development
• NI-RIO 1.3 or later driver software
• Not compatible with Vivado
Operating Systems
• Windows 2000/XP
• Windows Vista x64/x86
Physical
• Dimensions: 17 cm × 11 cm (6.7 in. × 4.3 in.) without connectors
• Weight: 112 g
