25G/10G ULTRA Low Latency Ethernet FPGA IP Core Solution


The 25G/10Gbps Ultra Low Latency Ethernet FPGA IP core solution offers a fully integrated IEEE P802.3by compliant package for NIC (Network Interface Card) and Ethernet switching applications. This ultra-low latency solution specifically targeted for demanding financial, high frequency trading, HPC, and next generation 5G network applications.


  • Round Trip Latency of 59.6ns + Device Specific Transceiver Latency
  • As shown in the figure, the 25Gbps ULL Ethernet IP solution includes:
  • Ultra low latency MAC; Tx = 17.4ns , Rx = 17.4ns; (64-bit user interface mode)
  • Ultra low latency 25GBase-R PCS; Tx = 12.4ns, Rx = 12.4ns; (64-bit user interface mode)
  • Technology dependent transceiver wrapper (includes clock PLLs) for Altera and/or Xilinx FPGAs
  • Statistics counter block (for RMON and MIB)
  • MDIO and I2C cores for optical module status and control


  • Encrypted MAC and PCS RTL for simulation and synthesis
  • Encrypted L2 packet generator and checker RTL for simulation and synthesis
  • Source code RTL (Verilog) for top level Ethernet wrappers to allow for user specific customizations.
  • Technology specific transceiver wrappers for the selected device family
  • Source code RTL (Verilog) for AXI4 Lite and Avalon-MM arbiters and address decoders
  • Constraint files and synthesis scripts for design compilation
  • Linux based APIs/tools to access core configuration and statistics registers
  • Design guide(s) and user manual(s)

Product Brief

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