PCIe 5.0 Controller with AXI

The PCIe 5.0 Controller is designed to achieve maximum PCI Express® (PCIe®) 5.0 performance with great design flexibility and ease of integration. It is fully backward compatible with PCIe 4.0 and 3.1/3.0. A PCIe 5.0 Controller with AXI  is also available. The controller delivers high-bandwidth and low-latency connectivity for next-generation applications in artificial intelligence/machine learning (AI/ML), data center, edge, 5G infrastructure and graphics.

How the PCIe 5.0 Controller Works

The PCIe 5.0 Controller is configurable and scalable IP designed for ASIC and FPGA implementation. It supports the PCIe 5.0, 4.0 and 3.1/3.0 specifications, as well as the version 5.x of the PHY Interface for PCI Express (PIPE) specification. The IP can be configured to support endpoint, root port, switch port, and dual-mode topologies, allowing for a variety of use models.

The vendor integrates and validates the PCIe 5.0 Controller with the customer’s choice of 3^rd-party PCIe 5.0 PHY.

• PCI Express layer
  • Comprises complete PCIe 5.0 interface subsystem with Rambus PCIe 5.0 PHY
  • Supports the PCI Express 5.0 rev. 1.0 (32 GT/s), 4.0 (16 GT/s), 3.1/3.0 (8 GT/s) and PIPE (8, 16, 32 and 64-bit) specifications
  • Supports the PCI-SIG Single-Root I/O Virtualization (SR-IOV) Specification
  • Supports Endpoint, Root-Port, Dual-mode configurations
  • Supports x16, x8, x4, x2, x1 at Gen5, Gen4, Gen3, Gen2, Gen1 speeds
  • Supports up to 64 Physical Functions (PF), 512 Virtual Functions (VF)
  • Supports AER, ECRC, ECC, MSI, MSI-X, Multi-function, crosslink, DOE, CMA over DOE, and other optional features and ECNs
  • Additional optional features include LTR, L1 PM substates, etc.
• AMBA AXI layer
  • Compliant with the AMBA® AXI™ Protocol Specification (AXI3, AXI4 and AXI4-Lite) and AMBA® 4 AXI4-Stream Protocol Specification
  • Supports multiple, user-selectable AXI interfaces including AXI Master, AXI Slave, AXI Stream
  • Each AXI interface data width independently configurable in 512-, 256-, 128-, and 64-bit
  • Each AXI interface can operate in a separate clock domain
  • Supported Burst types include INCR, FIXED, WRAP
  • Narrow transfers supported
• Integrity and Data Encryption (IDE)
  • Implements the PCI Express IDE ECN
  • Configurable IDE engine
  • Supports x1 to x16 lanes
  • 256-bit or 512-bit data bus for PCIe IDE
  • Configurable pipeline stages for difference process nodes for best cost and performance balance
  • Supports containment and skid modes
  • Supports multi-stream
  • Utilizes high-performance AES-GCM for encryption, decryption, authentication
  • PCIe IDE TLP aggregation for 1, 2, 4, 8 TLPs
  • PCIe IDE automatic IDE prefix insertion and detection
  • PCIe IDE automatic IDE sync/fail message generation
  • PCRC calculation & validation
  • Efficient key control/refresh
  • Bypass mode
• Data engines
  • Optional built-in Legacy DMA engine
    • Up to 8 DMA channels, Scatter-Gather, descriptor prefetch
    • Completion reordering, interrupt and descriptor reporting
  • Optional Address Translation tables for direct PCIe to AXI and AXI to PCIe communication

• Internal data path size automatically scales up or down (64-, 256-, 512- bits) based on link max. speed and width for reduced gate count and optimal throughput
• Configurable pipelining enables full speed operation on Intel and Xilinx FPGA, full support for production FPGA designs up to Gen4 x8/Gen3 x16 with same RTL code - Gen5 support pending
• Stringent implementation of PCIe to AXI Ordering Rules and AXI to PCIe Ordering Rules guarantees AXI deadlock prevention
• Carefully engineered AXI bridge & AXI interconnect allows full performance on AXI interfaces
• Availability of multiple AXI Master interfaces, a key benefit for high end SSD to maximize throughput
• Optional QuickBoot mode allows for up to 4x faster link training, cutting system-level simulation time by 20%

• HPC,
• Cloud Computing,
• AI,
• Machine Learning,
• Enterprise,
• Networking,
• Automotive,
• AR/VR,
• Test and Measurement

• Verilog RTL,
• Supporting Documentation