X3-DIO

Features

• 64 single-end/32 differential digital IO
• 100 MHz signal rates to FPGA using LVDS
• 50 MHz LVCMOS signal rates
• 400 MB/s LVDS capture/playback to SRAM
• Optional on-card termination
• Xilinx Spartan3A DSP, 1.8M gate FPGA
• 4MB SRAM
• External clocking and triggering
• Programmable timebase
• Framed, software or external triggering
• Log acquisition timing and events
• 48 bits digital IO on J16
• Power Management features
• XMC Module (75x150 mm)
• PCI Express (VITA 42.3)

Applications

• Pattern Generation
• Custom Digital Interfaces for Remote IO
• Digital Controls

Overview

The X3-DIO is an XMC IO module for high speed digital IO data interfaces featuring 64bits of front-panel digital IO. The DIO is either single-ended LVCMOS or LVDS differential pairs. The DIO is directly connected to the FPGA, supporting high speed pattern generation, digital recording, custom IO interfaces and control applications.

Flexible trigger methods include counted frames, software triggering and external triggering. The sample rate clock is either an external clock or on-board programmable PLL clock source.

Data acquisition control, signal processing, buffering, and system interface functions are implemented in a Xilinx Spartan3A DSP, 1.8M gate device. Two 1Mx16 memories are used for data buffering and FPGA computing memory.

The logic can be fully customized using VHDL and MATLAB using the FrameWork Logic toolset. The MATLAB BSP supports real-time hardware-in-the-loop development using the graphical, block diagram Simulink environment with Xilinx System Generator.

The PCI Express interface supports continuous data rates up to 180 MB/ s between the module and the host. A flexible data packet system implemented over the PCIe interface provides both high data rates to the host that is readily expandable for custom applications.