Ethernet

Review of Ethernet SGMII (8B/10B SERDES) Concepts.    View      

The Serial Gigabit Media Independent Interface (SGMII) is a popular Gigabit Ethernet PHY interface, and it holds various advantages over both GMII and RGMII. This article reviews some of the core SGMII concepts with the help of a scope and lab bench examples.

Overview This article reviews various SGMII (& 1000BASE-SX) concepts that are integral to our Private Island ® project and its soft Verilog MAC layer. We provide oscilloscope screen shots below to help illustrate the concepts.

As shown in the block diagram below, Private Island utilizes a SERDES capable FPGA, such as the Intel Cyclone 10 GX on our company's Volitio™ board, to interface with SGMII Gigabit Ethernet PHYs and other SERDES-based peripherals.

Unlike a typical SoC, an FPGA is capable of asserting an external interrupt synchronous to specific packet transmit or receive events. The interrupt can also assert on specific octets / special codes within the Ethernet frame (i.e., end of packet). This interrupt flexibility is important for certain security functions and provides a reliable and predictable way to trigger our scope during debug of the SGMII / SERDES bus for both hardware and software debug.

IP Camera Protocols And Standards Explained.    View      

This article describes all of the different protocols and standards used for cameras over IP.

Lite Ethernet.    View      

Liteeth is a Litex Python library for generating Verilog ethernet modules. FreeBSD License.

There is nice documentation I can configure it however I want. It has 271 stars, and is used by the Litex framework. And I know Python. Perfect.

It even runs on GateMate. Slide 17.

The ultimate guide to IP cameras.    View      

The Ultimate Guide to IP Cameras: IP Camera Streaming, Video Transmission, and PTZ Cameras for the Pro AV Industry

IP cameras have revolutionized how video is captured and transmitted in the broadcast and Pro AV industries. From sophisticated live-streaming events to in-house studio recordings, these cameras offer flexibility and high-quality performance over IP networks that work with any video production. Whether you’re new to IP camera technology or an industry professional looking for a comprehensive reference, understanding how IP cameras function, like IP camera streaming and IP video transmission, is essential for creating a streamlined workflow. This guide will explore IP camera functionality, including popular protocols and their growing role in live stream camera setups and PTZ camera systems.

SimpliPHY Your Ethernet Design, Part 1: Ethernet PHY Basics and Selection Process.    View      

A very nice introduction to Ethernet terminology.

How 10GbE NICs Work: MAC, PHY, SerDes, and Offloading Explained.    View      

This one is a much deeper dive into these topics, along with a 45 minute video.