High speed serial io design

Each port supports up to 400gbs in aggregate over an 8 x 50gbs electrical interface. Passive equalizer design on high density interconnects for. Section 2 discusses the threewire asynchronous signaling protocol used for dataencoding on the highspeed serial bus. At these high link speeds, the byte by byte transfers described in the serial port design pattern prove inadequate. Because the rise time of the pulse sent for tdr analysis is very small around 20 ps, the tdr voltage plot shows every disc ontinuity on the transmission path. You hand the schematic to your layout person who puts all. Jul 24, 2019 for applications requiring high speed stimulusresponse tests or nonstandard voltage levels, for example, ni hsdio devices complement multifunction rio devices in the design cycle. Highspeed serial io design for channellimited and powerconstrained systems samuel palermo. Testing of embedded clock high speed serial io iii. Pdf an overview of highspeed serial io trends, techniques and.

The high speed data capture and dpg controller boards were designed to be used in conjunction with various adi component evaluation boards as part of a customer evaluation environment. Common io design strategies for highspeed interfaces. In digital systems, serial io at speeds in the range from 1 to 20 gbps is realized by means of dedicated transceivers, named serializerdeserializers serdeses. Highspeed digital, analogue and emc engineering oxford. Definition of high speed the speed at which one or more digital abstractions fail, as a direct consequence of the circuit speed speed. Intels cpu servers power the cloud, enterprise systems, and data centers. This processing is generally done in a mixed signal manner today. Systemlevel interconnect testing interconnect testing with boundary scan interconnect testing with high speed boundary scan interconnect builtin selftest v. Guidelines for designing highspeed fpga pcbs timedomain reflectometry figure 2. In general, due to their internal architecture, the data transfer delay, or the latency, may vary after a reset of the device. This highspeed serial io training course helps engineers to master electrical signal analysis and hardware debug at data rates from 2. To reduce cost, this highspeed clock is normally generated from an offchip lowfrequency quartz crystal. Electronic devices crave speed, speed, and more speed, which has triggered the creation and implementation of an array of serial interfaces across. Dftassisted testing ac loopback testing highspeed seriallink loopback testing testing the equalizers iv.

Xilinx kintex ultrascale 6u openvpx fpga board 6xz3. A highspeed clock running at the serial data rate is usually required. Highspeed serial io design for channel limited and. Each highside switch sources 850ma continuous current with a low 165m. Ni highspeed digital io devices offer another option for many common tests incorporated in the digital device design process. M horowitz ee371 lecture 2 12 at high speeds, vias are stubs signal energy splits at via if via is short can be modeled as a cap load causes a reflection in signal higher the frequency, the more sensitive you are to stubs top layer signaling results in large via stub. Xilinx simplifies and lowers cost for highspeed serial. Familiarity with logic design state machines and synchronous design basic knowledge of fpga architecture and xilinx implementation tools is helpful. This high speed serial io training course helps engineers to master electrical signal analysis and hardware debug at data rates from 2. High speed serial io validation engineer intern careers at. Section 2 discusses the threewire asynchronous signaling protocol used for dataencoding on the high speed serial bus. Systemlevel interconnect testing interconnect testing with boundary scan interconnect testing with highspeed boundary scan interconnect builtin selftest v.

The v1152 is the industrys most dense xmc network io solution designed to provide a real time highbandwidth network interface and processing module for next generation signal intelligence systems. Dftassisted testing ac loopback testing high speed serial link loopback testing testing the equalizers iv. The focus of our work is on lowvoltage, lowpower circuit design in the most advanced cmos and cmos soi technologies. Highspeed io proximity communication highspeed scalable 432 gbs powerefficient 16. A high speed clock running at the serial data rate is usually required. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels serial communication is used for all longhaul communication and most. Its an intense two days, but i promise that youll have a good time. Such i os, when integrated into a highly programmable digital environment such as an fpga, allow you to create highperformance designs that were never possible before. This book discusses the many aspects of highspeed serial designs. As a result, an analog pll phaselocked loop based frequency multiplier in the transmit clock generator is needed. Comprehensive diagnostics and configurable features make point io easy to apply. Apr 07, 2016 this book was published by xilinx in 2005.

High speed io offchip links serial data transfer parallel data bus fr4 skin effect dielectric loss clock phase alignment derived clocking source synchronous forwarded clocking plesiochronous mesochronous. Serial core instrument with optical io expansion instrument. Max14900e octal, highspeed, industrial, highside switch. Attend ransoms mastering high speed serial io at oxford university, june 2224, 2020 this 3day intensive course is for research, design, manufacturing, system, and test engineers. These blocks convert data between serial data and parallel interfaces in each direction. They are being provided on an asis basis and as an accommodation. Download data sheet request more info the v1141 is the lowest power and most secure programmable. Familiarity with serial io basics and high speed serial io standards is also helpful. M horowitz ee371 lecture 2 2 readings readings techniques for highspeed implementation of nonlinear cancellation, sanjay kasturia and jack h. The same gt is used to interface with the gigabit ethernet physical coding sublayerphysical media dependent pcspma and the 10g ethernet pcspma ip core.

Common io design strategies for highspeed interfaces ee times. On the other hand, some applications, such as highspeed transfer protocols for analogtodigital and. Our bulletin 1734 point io modules offer digital, analog, and specialty io, as well as point guard safetyrated io, with one to eight points per module. I opins should be configured as output and driven to static low in the. Our interconnect solutions range from highspeed, highdensity pluggable connectors to consumer io and legacy d subminiature and modular jack connectors. The max14900e is an octal power switch that features perchannel configuration for highside or pushpull operation. Pcb and high speed serial interface hssi design guidelines ap32174 high speed board design application note 7 v1.

This new technique is a novel implementation and reinvention of the quarterwave impedance transformer design originally adopted in the rfmicrowave systems. We propose a passive equalizer design on high density interconnects to improve the serial chiptochip communication channel performance. The hssub5050 serial core instrument combines reconfigurable fpga and realtime processor capability to address complex upper level protocol requirements in an integrated package. This rest of this paper provides design details for high speed clockless transceivers and is organized as follows.

As a result, an analog pll phaselocked loop based frequency multiplier in. The serial core instrument with 16 multigigabit io ports can support a mix of copper and optical io. Features of the wizard are explained for both a tx and rx. Covers almost every aspect of the system you could think of, rx, tx, clock distribution, and so on, and gives you a full understanding of the system and the jitter budget, and a deep understanding of how to design all the related circuits too. While in our very dynamic profession, some of the technologies explained can be a bit outdated, the basic concepts are there for anyone who wishes to learn or refresh hisher concepts about high speed serial links. These design examples may only be used within intel corporation devices and remain the property of intel. Imagine the possibilities if usb transfer speed were 10100 times higher.

Pam4 defines four voltage levels for logic, rather than the usual two, packing twice the data into every clock cycle. Hsdio devices can also interface with higher speed devices, transferring data at rates up to 400 mbs. System performance can be increased up to 12x because srio eliminates io bottlenecks by providing a low latency, high bandwidth 10 gbps full duplex and low pin count interconnect. Passive equalizer design on high density interconnects for 25gbps high speed io and beyond abstract. Highspeed serial io can be used to solve system interconnect design challenges. The adcbased highspeed serial link architectures and design techniques under development in this project aim to significantly improve interconnect energy efficiency and bandwidth density, which is necessary for continued scaling of future compute systems. A serializerdeserializer serdes pronounced sirdeez or sirdez is a pair of functional blocks commonly used in high speed communications to compensate for limited inputoutput. High speed serial io validation engineer intern job description. High speed serial io design for channellimited and powerconstrained systems samuel palermo.

High speed analog design and application seminar 51 texas instruments section 5 high speed pcb layout techniques scenario. Highspeed io offchip links serial data transfer parallel data bus fr4 skin effect dielectric loss clock phase alignment derived clocking source synchronous. Apr 16, 2017 this book was published by xilinx in 2005. This rest of this paper provides design details for highspeed clockless transceivers and is organized as follows. You have spent several days, no maybe weeks, perfecting a design on paper and also using spice to ensure the design exceeds all expectations. Tdr voltage plot with cable connected to pcb figure 3 shows an expanded curve for the sma connector. Highspeed serial io made simple by abhijit athavale, carl christensen. Refer to the related links below for more information. It is now being used in products ranging from drams to inteconnects in high end servers and routers. Now, all of these vendors have moved to higherthroughput pam4 technology for their fastest highspeed serial io transceivers. They are connected as shown in figure 1, which illustrates the. See how three key innovationsdifferential signaling, clock recovery, and equalization enabled todays high data rates.

Embedded processors nowadays are connected with each other via high speed serial links. Such ios, when integrated into a highly programmable digital environment such as an fpga, allow you to create highperformance designs that were never possible before. The design uses the xilinx ethernet solution suite along with a xilinx gigabit transceiver gt to form the ethernet interface. Highspeed serial interfaces are proliferating in chips used in the metro. Serial io toolkit makes it easier, faster to verify and debug high performance rocketio mgts in virtex4 fx fpgas. The goal is to integrate a multitude of high speed links on a single digital chip, thereby achieving multiterabitss aggregate bandwidth at low power consumption and small chip area. Pcb and high speed serial interface hssi design guidelines ap32174 high speed board design application note 9 v1. Serial rapidio srio architectures in embedded systems. Our design is based on the xilinx virtex5 fpgas, and uses fabric resources and embedded high speed serial link transceivers, in order to emulate the.

The term serdes generically refers to interfaces used in various. Advanced printed circuit board design for emi and signal integrity. By equipping the armv8 processors with a transceiver and peripherals to support the most common serial interconnects, xilinx has simplified the design process and reduced the overhead associated with interfacing to those interconnects. Low propagation delay, highrate loadswitching makes the device suitable for nextgeneration highspeed plc systems. Ransom stephens high speed serial io training course helps engineers master electrical signal analysis and hardware debug at data rates from 2. At intel, the infrastructure and platform solutions group ipsg is the place to be to expand your high speed signal knowledge.

You can mix standard and safety io in the same system. An important research topic is the design of compact lowpower io transceivers for both chiptochip and backplane communication applications. Clock frequency andor edge rates typical problems logic gates or flipflops dont have time to settle clock skew causes races wire interconnect acts like transmission lines. We offer a diverse portfolio of audio video connectors and high speed serial connectors to meet the global dynamic interconnect demand that stretches across various industries. Chapter 19 high speed link design, by ken yang, stefanos sidiropoulos introduction there has been an explosion of interest in high speed io over the past 10 years.

Apply to designer, design engineer, engineer and more. Xilinx high speed serial solutions deliver the highest bandwidth, superior auto adaptive equalization, and industryleading productivity. Pcb and high speed serial interface hssi design guideline. Your project will be the design of a circuit that processes the input data from a highspeed io. The following evaluation boards are compatible with high. Highspeed serial io design for channel limited and power. Familiarity with serial io basics and highspeed serial io standards is also helpful. On the other hand, some applications, such as high speed transfer protocols for analogtodigital and.

The design minimizes crosstalk and transmission line impedance discontinuity across the connector interface. To reduce cost, this high speed clock is normally generated from an offchip lowfrequency quartz crystal. Gigabit multimedia serial link gmsl serializer and deserializers serdes are highspeed communication ics that fully support the high bandwidth, complex interconnect, and data integrity requirements needed to support evolving automotive infotainment and advanced driver assistance systems adas. Xilinx is providing this design, code, or information as is. The term serdes generically refers to interfaces used in various technologies and applications. No matter you are a vlsi highspeed io circuit designer, a system engineer dealing with highspeed io blocks, or just want to learn the basics and fundamentals of highspeed io circuits, this is the best book you want to 100% put on your bookshelf. Digital io for test, control, and design national instruments. This processing is generally done in a mixed signal manner today, but. Many serial communication systems were originally designed to transfer data over relatively large distances through some sort of data cable practically all longdistance communication transmits data one bit at a time, rather than in parallel, because it reduces the cost of the cable. Sep 22, 2015 electronic devices crave speed, speed, and more speed, which has triggered the creation and implementation of an array of serial interfaces across many markets. Section 3 provides architectural details of the tokenring multiplexers and demultiplexers and in section 4 we.

Guidelines for designing high speed fpga pcbs timedomain reflectometry figure 2. High speed transfers require devices that can directly. For applications requiring highspeed stimulusresponse tests or nonstandard voltage levels, for example, ni hsdio devices complement multifunction rio devices in the design cycle. No matter you are a vlsi high speed io circuit designer, a system engineer dealing with high speed io blocks, or just want to learn the basics and fundamentals of high speed io circuits, this is the best book you want to 100% put on your bookshelf. The on board srio can also provide communications connectivity to third party tools, fpgas, srio switches and srio equipped embedded processors. Product highlights high speed io connectors high speed io solutions. Dramatic increases in processing power, fueled by a combination of integrated circuit scaling and shifts in computer architectures from singlecore to future manycore systems, has rapidly. Whether youre switching fields or want to get caught up to the state of the art, youll get what. In telecommunication and data transmission, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus.