Scalable, Variable-speed Time-Sensitive Ethernet

Time critical data requires low latency and deterministicnbsp;transfer. Sensor, command and control data of mission-critical, high-reliability, real-time applications such as collision avoidance, avionics require on-time delivery. Flight control system, images from a camera of an autonomous system require real-time andnbsp;must be communicated deterministically for the system to function correctly. Autonomous systems such as unmanned ground, sea, air, space vehicles, robots, etc. and industrial automation control systems, all have requirements for deterministicnbsp;network.nbsp;Ethernet is ubiquitous. Itrsquo;s being used everywhere from small devices to high performance computing system. Its large ecosystemnbsp;provides key advantages such as low cost and high availability. However, data transferred via Ethernetnbsp;is ldquo;best-effortrdquo;nbsp;and may be buffered - causingnbsp;significant jitter and non-deterministic innbsp;delivery timing. Packets across Ethernet may be dropped by switch, routers -nbsp;delivery is not guaranteed. Solutions are required to overcome these problems. 2nbsp;standards have been defined by the industry fornbsp;time-critical applications: Time-triggered Ethernet (TTE)nbsp;and Time-Sensitive Network (TSN). Previously, LeWiznbsp;developed TTE IP core, FPGA and softwarenbsp;for use in endpoint and switching nodes. This proposal further extends the technology to includenbsp;TSN, which has a very large commercial potential. NASA also has specific requests for TSN in its SBIR Topicnbsp;including processor clustering, faultnbsp;tolerant, compatible with heterogeneous networks, support low-cost devices. The proposed core would support these requirements. In Phase 1, LeWiz willnbsp;enhance its existing TTE corenbsp;to support TSN, compliant tonbsp;IEEE standards for use in either endpoint or switching systems, scalable from 1 to 10/100Gbpsnbsp;and still maintain extreme timing accuracy. Thus, network products designed with this technology can benbsp;more versatile. Thisnbsp;corenbsp;provides many advantages and can also be used fornbsp;switching or SoC ASIC nbsp;