PCI Express for Avant and Nexus 2 FPGAs

Flexible, High-Performance, Easy-to-use Transaction Layer Interface to the PCI Express Bus

The Lattice PCIe x8 IP Core provides a flexible, high-performance, easy-to-use Transaction Layer Interface to the PCI Express Bus. The Lattice PCIe x8 IP Core implementation is a hardened IP with soft logic provided for interface conversion options. The hardened IP is an integration of PHY and Link Layer blocks.

Resource Utilization details are available in the IP Core User Guide.

The Hard IP PHY key features include:

  • Aggregation and bifurcation up to x4 lanes and x8 lanes PHY configuration
  • Data rates of 2.5 Gbps, 5.0 Gbps, 8.0 Gbps, and 16.0 Gbps
  • Selectable parallel data widths such as 8, 16, 32, 64
  • 8b/10b encoding at 2.5 Gbps and 5 Gbps, and 128b/130b encoding at 8 Gbps and 16 Gbps

The Hard IP Link Layer key features include:

  • PCI Express Base Specification Revision 4.0 compliant including compliance with earlier PCI Express Specifications.
  • Backward compatible with PCI Express 3.x, 2.x, 1.x
  • Backward compatible with PCI Express 3.x, 2.x, 1.x x8 PCI Express Lanes with support for bifurcation. Supported lane configurations:
    • Radiant 2023.2 – 1 × 4, 1 × 2, 1 × 1
    • Radiant 2024.1 and future Radiant releases – 1 × 8, 1 × 4, 1 × 2, 1 × 1
  • 16.0GT/s, 8.0GT/s, 5.0 GT/s, and 2.5 GT/s line rate support

Soft IP key features include:

  • TLP Data Interface
  • AXI4-Stream Data Interface Option
  • LMMI Register Interfaces
  • AXI-L Register Interface

The software driver is developed using Jungo WinDriver Software toolkit. You can develop your own driver or use the Jungo WinDriver for driver development. To use Jungo WinDriver, contact Jungo to obtain a valid paid annual subscription.

For more information, please contact through this link: WinDriver of Jungo (or email at: WinDriver@jungo.com

 

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Ordering Information

The PCIe x8 IP is available with the Lattice Radiant Subscription software. To purchase the Lattice Radiant Subscription license, contact Lattice Sales or go to the Lattice Online Store.

Documentation

快速参考
资讯资源
标题 编号 版本 日期 格式 文件大小
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Lattice Avant and Nexus Linux PCIe Host Non-DMA Driver User Guide
FPGA-TN-02424 1.0 12/11/2025 PDF 1.8 MB
Lattice Avant and Nexus PCIe Basic Memory-Mapped Host Driver (Non-DMA) User Guide
FPGA-TN-02387 1.3 10/10/2025 PDF 1.3 MB
Lattice Avant and Nexus PCIe Host DMA Driver Software User Guide
FPGA-TN-02386 1.3 12/11/2025 PDF 1.6 MB
Avant-G/X PCIe Host DMA (Hardened DMA) Driver Software User Guide
FPGA-TN-02405 1.0 6/26/2025 PDF 1023 KB
标题 编号 版本 日期 格式 文件大小
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PCIe x8 IP Core - User Guide
FPGA-IPUG-02243 1.6 12/11/2025 PDF 7.8 MB
标题 编号 版本 日期 格式 文件大小
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PCIe x8 IP Core - Release Notes
FPGA-RN-02061 1.4 12/11/2025 PDF 293.5 KB