Silicon Blog

Deep learning fueling the AI revolution with Interlaken IP Subsystem

Posted by Daniel Nenni on Jul 31, 2018 12:20:33 PM

Published by SemiWiki
Published on 07-30-2018

AI is revolutionizing and transforming virtually every industry in the digital world. Advances in computing power and deep learning have enabled AI to reach a tipping point toward major disruption and rapid advancement. However, these applications require much higher performance and bandwidth requiring new kinds of IP and that brings us to Open-Silicon and the Interlaken IP.

Open-Silicon, a founding member of the Interlaken Alliance formed in 2007, launched the 8thgeneration of Interlaken IP core supporting up to 1.2 Tbps bandwidth last year. This high-speed chip-to-chip interface IP features an architecture that is fully flexible, configurable and scalable.

Biggest Challenge of Adoption of 3D IC Technology-interlaken-ip-open-silicon.jpg

The Interlaken IP subsystem originally developed for networking applications is enabling high speed chip to chip interface for deep learning SoCs. Open-Silicon’s eighth-generation Interlaken IP supports up to 1.2Tbps high-bandwidth performance and up to 56 Gbps SerDes rates with Forward Error Correction (FEC). Interlaken IP is a scalable, high-speed chip-to-chip interface protocol that builds on the channelization and per-channel flow control features of SPI4.2, while reducing the number of chip I/O pins by using high-speed SerDes technology, similar to XAUI. Open-Silicon's ILKN FEC IP core meet the requirements Interlaken protocol to significantly improve bandwidth by enabling high speed SerDes integration. The FEC can easily achieve a BER (Bit Error Rate) of 10-15, which is required by most electrical interface standards using high speed SerDes built upon a flexible and robust architecture.

The updated Interlaken specification is capable of supporting SerDes beyond 30Gbps and up to 58Gbps—this was mainly because of the introduction of the peer-to-peer service, which allows sending more data on fewer lines. This led to development of Open-Silicon’s eighth generation Interlaken IP core, supporting up to 1.2 Tbps high performance and up to 56 Gbps SerDes rates with Forward Error Correction (FEC) https://www.open-silicon.com/open-si...controller-ip/

Key Features:

  • Fully-programmable SerDes lane mapping
  • Interlaken-LA 4-channel protocol
  • Up to 56 Gbps SerDes support
  • 1.2 Tbps high-bandwidth performance
  • Interlaken Retransmit Extension support


Standard Features:
In addition to the key features highlighted with the latest release, the Open-Silicon Interlaken IP also provides the following feature set as part of the standard IP functionality:

  • Support for 256 logical channels
  • 8-bit channel extension for up to 64K channels
  • Independent SerDes lane enable/disable
  • Support for SerDes speeds from 3.125Gbps to 56 Gbps
  • Configurable number of lanes from 1 to 48
  • Flexible user interface options:
    • 128b: 1x128b, 2x128b, 4x128b, or 8x128b
    • 256b: 1x256b, 2x256b, 4×256, or 8x256b
  • Programmable BURSTMAX from 64 bytes – 512 bytes
  • Programmable BURSTMIN from 32 bytes – 256 bytes
  • Simultaneous In-band and Out-of-Band flow control
  • Programmable calendar
  • Built-in error detection and interrupt structures
  • Configurable error injection mechanisms for test-ability


"Open-Silicon’s Interlaken IP Subsystem delivers the bandwidth scalability and performance we require for various artificial intelligence applications that require high speed inter-node connectivity. The Interlaken IP subsystem is extremely configurable and robust, which enables the high-bandwidth efficiencies required for deep learning SoCs.”-Open-Silicon Customer

Since 2007 Open-Silicon’s Interlaken IP has been deployed in several different tier-1 networking and computing customer products. Many of these products are shipping in production today in the latest technology nodes in multiple foundries. The unique flexibility and configurability built into Open-Silicon’s Interlaken core meets not only today’s technological requirements, but remains fully compatible with older designs.

Want to get a budgetary quote for Interlaken ASIC? Please fill out the Design Requirements Form.

About Open-Silicon
Open-Silicon is a system-optimized ASIC solution provider that innovates at every stage of design to deliver fully tested IP, silicon and platforms. To learn more, please visit www.open-silicon.com

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