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Ethernet Subsystem 10G/25G


Comcores Ethernet Subsystem IP is a silicon-agnostic, easy-to-use integration of specific IP blocks. The subsystem IP is richly featured, highly configurable and comes in different variations of Ethernet MAC, Ethernet PCS, IEEE 1588 PTP (with Time Stamping Unit), DMA and can include TSN features.

The subsystem IP is ready for 5G applications, and is thoroughly tested and verified, thus reducing your risks and will save development time as the solution will reduce your design and integration efforts.

Block Diagram

Comcores Ethernet Subsystem Diagram

Key Features


The Ethernet subsystem consists of various IP blocks that can be selected or
deselected based on customers’ requirements. The main versions are:

01- Ethernet MAC and PCS
02- Ethernet MAC, PCS, and Timestamping Unit (TSU)
03- Ethernet MAC, PCS, and IEEE 1588 PTP (TSU and SW Stack)
04- Ethernet MAC, PCS, IEEE 1588 PTP (TSU and SW Stack), and DMA
*** Ethernet MAC can be replaced by TSN MAC in all versions

5G Ready

  • The subsystem has been designed for 5G applications and has been delivered to 5G projects.

Silicon Agnostic

  • Designed in VHDL and targeting both ASICs and FPGAs

Feature Rich

  • FCS generation supported
  • Deficit Idle Count for maximum data throughput supported
  • Jumbo frames support
  • Complete 10GBASE-R and 25GBASE-R PCS solution
  • Configurable for several operating modes and speeds
  • 64b 66b encoding/decoding
  • Reconciliation Sublayer (RS) and 10 Gigabit Media Independent Interface (XGMII)
  • Two-step messaging by default, with one-step messaging being optional

Ease-to-use and Reliable

  • HW validated subsystem
  • IP blocks are integrated and tested together


    The IP Core can be delivered in Source code or Encrypted format. The following deliverables will be provided with the IP Core license:

    • Solid documentation, including User Manual and Release Note.
    • Simulation Environment, including Simple Testbed, Test case and Test Script.
    • Timing Constraints in Synopsys SDC format.
    • Access to support system and direct support from Comcores Engineers.
    • IEEE 1588 PTP SW (optional).
    • DMA Driver (optional).
    • Synopsys Lint and CDC (optional).

    Related Products

    What Comcores IP will do for you

    Proven Quality

    Solid process and predictability

    Strong verification

    Faster Time-to-Market

    First in bringing out new solutions

    Tremendous investments in research


    Long-term experience in communication protocols

    Expert in executing digital design projects

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