TSN Network Node

The TSN Network Core (Switched End Node) from NetTimeLogic is a standalone Time Sensitive Networking (TSN) core according to IEEE 802.1, IEEE 1588 and IEC 62439-3 standards. It allows to connect to a TSN network, supporting time synchronization, network redundancy, priorities, traffic scheduling, cyclic forwarding, frame preemption, credit-based shaping, etc. It can either run as a Dual Attached Node (DAN) being a redundant endpoint or it can run as a Redundancy Box (RedBox) bridging between a redundant and a non-redundant network. There is also a mode which allows to use the node as a daisy chain node (Switched End Node). The core has three ports: A redundant pair named Ports A&B and an uplink/interlink named Port C. The core is intercepting the path between two Ethernet PHYs and an Ethernet core that forwards or handles Ethernet frames (MAC, PHY or Switch). In addition, it has up to 8 streaming ports which allow to send to and receive frames directly from the specific priority queues and phases.

All tables, protocols and algorithms are implemented completely in HW in the core, no CPU is required, except for configuration. This allows running TSN protocols completely independent and standalone from the user application.

Can be combined with the IIC(R) Plugfest Application IP core or OPC-UA stack like Open62541.

TSN Gates

Block Diagram

TSN Network Node



  • Up to 8 different priority queues, with freely definable VLAN priorities
  • Up to 64 phases per cycle according to priority queues
  • Cycle time and phase durations freely configurable (max 1 ms, min 15.625 us)
  • Cut-Through (<2us delay @ 1G) or Strore-And-Forward frame forwarding
  • Frame scheduling according to IEEE 802.1 Qbv
  • Cyclic forwarding according to IEEE 802.1 Qch
  • Credit based shaper according to IEEE 802.1 Qav
  • Frame preemption according to IEEE 802.1 Qbu and IEEE 802.3 br can be enabled for the lowest priority to allow maximum bandwidth usage
  • Registerset to configure according to IEEE 802.1 Qcc
  • Synchronization with sub-microsecond accuracy according to IEEE 1588 Default-, Utility- or Power-Profile or according to IEEE 802.1 AS
  • Supports the HSR and PRP redundancy protocol according to IEC 62439-3 rev 3 with hardware supervision handling and the Frame Replication & Elimination for Reliability (FRER) according to IEEE 802.1 CB
  • Can run as Dual Attached Node (DAN) or as Redundancy Box (RedBox) or Daisy Chain Node
  • Two forwarding ports, one internal/interlink port. Interlink port is optional when AXI stream interfaces are used
  • Intercepts path between MAC and two PHYs (DAN) or three PHYs (RedBox)
  • Supports up to 256 MACs connected to interlink port as well as promiscuous mode
  • Supports up to 8 AXI streaming interfaces, one for each priority/phase
  • Full line speed
  • AXI4 Light register set or static configuration
  • MII/RMII/GMII/RGMII Interface support
  • Optional frame and error counters per Port

Licensing & Pricing

There are different licensing possibilities (more info here). All prices are in US Dollars without VAT, all prices are one-time fees, no royalties apply:

  • Project Source Code: 21900$
  • Site Source Code: 39500$

All prices are non-binding estimates – please use the contact form for definitive pricing and lead-time information.


Red_Tsn_Flyer.pdf Red_Tsn_Flyer.pdf
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Red_Tsn_ReferenceManual.pdf Red_Tsn_ReferenceManual.pdf
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