GN4121

Overview

The GN4121 is is a PCI-SIG compliant Single Lane PCI Express-to-Local Bus Endpoint Bridge that is designed to work as a companion for FPGA devices to provide a complete bridging solution for general applications.

In addition to a PCI Express compliant PHY interface, the GN4121 also contains the link and transaction layers, and an applications interface that is ideally suited to FPGA interfacing using a small number of pins.

Since the PCI Express transaction/link IP is hard-wired into the GN4121, there is no need to license PCIe IP. The level of integration and very low power operation of the GN4121 makes it an ideal alternative to using a PIPE PHY, where IP licensing and the cost of FPGA resources and power consumption is unattractive by comparison. Using the GN4121 allows FPGA resources to be spent on what differentiates the product rather than on implementing the PCI Express protocol.

Features/Highlights

  • PCI Express® interface
  • Complies with PCI Express Base Specification 1.1
  • PCI SIG compliance tested
  • On-chip PHY, transaction, and link layer eliminates the cost of IP licensing
  • Local bus interface
  • Supports full-duplex local bus data transfer
  • Uses SSTL dual data rate I/O for high-speed data transfer using minimum pins
  • FPGA source code provided for master/target read/write buses for easy user logic attachment
  • Local bus may be operated asynchronously to the PCIe clock rate for power optimization
  • "Live" on power up
  • On-chip type 0 PCI configuration space enables auto detection without FPGA activity
  • On-chip extended configuration space supports power management, serial number, MSI, and PCIe capability registers
  • FPGA bitstream loader
  • Allows easy configuration of the attached FPGA through PCIe
  • Provides on-the-fly FPGA reconfiguration capability
  • I2C master/target
  • INTx and MSI Interrupt controller
  • 2kV ESD protection
  • 256 pin 17mm x 17mm lead-free BGA
  • 0-85°C operating temperature

    • Key Applications

    • High-speed data acquisition
    • Video capture/DVR
    • Configurable computing
    • Networking and communications

    Ordering Information

    Part No

    Package

    GN4121-CBE3

    Tray (90pcs)

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