TSN Ethernet Subsystem Available from CAST Proven at IIC and LNI Plugfests

WOODCLIFF LAKE, NJ, USA — September 05, 2018


A Time Sensitive Networking (TSN) subsystem for Automotive and Industrial Ethernet designed by Fraunhofer IPMS and available from semiconductor intellectual property provider CAST, Inc. has successfully undergone functional and interoperability testing at two recent multi-vendor plugfests in Germany: the Industrial Internet Consortium (IIC) TSN Plugfest July 24–27, 2018, in Stuttgart, and the Labs Network Industry 4.0 e.V. (LNI) Plugfest August 22–23, 2018, in Augsburg.

ITN TSN Plug Fest Aug 2018
Engineers from fifteen firms participate in the LNI Time Sensitive Networking Ethernet Plugfest in Augsburg, Germany August 22, 2018.

At these plugfests, engineers from Fraunhofer IPMS successfully added their reference design for a TSN end node device to an Ethernet network integrating TSN switches and endpoints from several independent vendors. The resulting TSN testbeds mimic real-world industrial and automotive environments with a diverse mix of real-time signal scheduling and priority challenges that must be satisfactorily managed by the system. The Fraunhofer IPMS design operated successfully, with respect to both its own functionality and in effective cooperation with the rest of each TSN testbed.

“Participating in these plugfests enabled us to rigorously exercise our TSN endpoint design in two different real-world-like environments, each networking our design with switches and end nodes from all the other leading TSN developers,” said Frank Deicke, business unit manager for Wireless Microsystems at Fraunhofer IPMS. “We found that our design performed extremely well and is definitely market-ready, while also gaining insights that will help our customers have even smoother TSN deployment experiences.”

About the Plugfests

Fraunhofer IPMS is a member of the Industrial Internet Consortium (IIC), and participated in the IIC TSN Plugfest that took place July 24–27, 2018, in Stuttgart, Germany. The testing there focused on two of the IEEE TSN standards: IEEE 802.1as Time Synchronization, and IEEE 802.1Qbv Time Aware Traffic Scheduling. Twenty firms contributed TSN designs, significantly enlarging the IIC TSN Testbed, which will serve as the foundation for future testing. Learn more about the IIC TSN program at www.iiconsortium.org/time-sensitive-networks.htm.

Fraunhofer also participated in the TSN plugfest conducted by Labs Network Industry 4.0 e.V. (LNI) on August 22–23, 2018, in Augsburg, Germany. Fifteen firms integrated their switch and end node designs across an Ethernet network for rigorous functional and interoperability testing. Learn more about LNI’s Ethernet TSN efforts at www.lni40.de

About TSN and the Ethernet Subsystem

TSN CNTRL Block Diagram
Block diagram showing the major elements of the TSN Ethernet Subsystem IP available from CAST.

The IEEE TSN Ethernet standards manage challenging networks having a mix of critical and non-critical nodes and have helped Ethernet emerge as the preferred bus for today’s complex industrial and automotive buses. TSN ensures that quality of service requirements are satisfied by prioritizing and scheduling diverse network traffic while also providing ultra-low and deterministically-constrained latency where needed.

Fraunhofer IPMS’ entry to the plugfests is a 1000 Mbps endpoint FPGA board based on a reference design for the TSN_CTRL Ethernet Subsystem already available from CAST. That Subsystem combines three essential IP cores:

  • the Time Synchronizer implements IEEE 802.1AS to automatically synchronize local and system time and generate timestamps and alerts needed for time-aware nodes and applications; 
  • the Traffic Shaper implements IEEE 802.1Qav and 802.1Qbv to provide bandwidth allocation and time multiplexing for up to eight traffic classes, ensuring sufficiently low latency and minimum jitter as required; and 
  • a specially-designed Ethernet MAC with ultra-low latency provides standards-based Ethernet functionality that works well with TSN.

The company believes this is the first commercially-available IP subsystem implementing the latest TSN standards, and has already licensed it to multiple customers.

About Fraunhofer IPMS and CAST

The Fraunhofer Institute for Photonic Microsystems (IPMS) is a Dresden, Germany based research and development group focused on integrated circuits, microsystems (MEMS/MOEMS), nanoelectronics and optical sensors and actuators. Learn more at www.ipms.fraunhofer.de.

CAST, Inc. is an experienced silicon IP supplier offering a range of compression solutions and image processing functions; 8051 microcontrollers and extreme-low-power 32-bit BA2X™ processors; and a variety of peripherals, interfaces, security, and other IP cores. CAST IP features easy integration and reuse, straightforward licensing, and availability for ASICs or FPGAs from all leading silicon providers. Learn more by visiting www.cast-inc.com, emailing [email protected], or calling +1 201.391.8300. 

CAST, Inc., 50 Tice Blvd, Suite 340, Woodcliff Lake, NJ 07677 USA • phone: +1 201.391.8300



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