This book discusses the many aspects of highspeed serial designs. Pcb and high speed serial interface hssi design guidelines ap32174 high speed board design application note 9 v1. 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. Refer to the related links below for more information. This highspeed serial io training course helps engineers to master electrical signal analysis and hardware debug at data rates from 2. 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. A high speed clock running at the serial data rate is usually required.
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. You have spent several days, no maybe weeks, perfecting a design on paper and also using spice to ensure the design exceeds all expectations. They are connected as shown in figure 1, which illustrates the. 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. Section 3 provides architectural details of the tokenring multiplexers and demultiplexers and in section 4 we. Each highside switch sources 850ma continuous current with a low 165m. Pcb and high speed serial interface hssi design guidelines ap32174 high speed board design application note 7 v1. Common io design strategies for highspeed interfaces ee times.
Product highlights high speed io connectors high speed io solutions. Serial io toolkit makes it easier, faster to verify and debug high performance rocketio mgts in virtex4 fx fpgas. Section 2 discusses the threewire asynchronous signaling protocol used for dataencoding on the high speed serial bus. The hssub5050 serial core instrument combines reconfigurable fpga and realtime processor capability to address complex upper level protocol requirements in an integrated package. High speed serial io design for channellimited and powerconstrained systems samuel palermo. Highspeed io proximity communication highspeed scalable 432 gbs powerefficient 16. Imagine the possibilities if usb transfer speed were 10100 times higher. 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. To reduce cost, this high speed clock is normally generated from an offchip lowfrequency quartz crystal. We propose a passive equalizer design on high density interconnects to improve the serial chiptochip communication channel performance. Guidelines for designing high speed fpga pcbs timedomain reflectometry figure 2.
The design minimizes crosstalk and transmission line impedance discontinuity across the connector interface. 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. Comprehensive diagnostics and configurable features make point io easy to apply. Features of the wizard are explained for both a tx and rx.
Xilinx high speed serial solutions deliver the highest bandwidth, superior auto adaptive equalization, and industryleading productivity. Highspeed serial io can be used to solve system interconnect design challenges. It is now being used in products ranging from drams to inteconnects in high end servers and routers. 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. This high speed serial io training course helps engineers to master electrical signal analysis and hardware debug at data rates from 2. This rest of this paper provides design details for high speed clockless transceivers and is organized as follows. Ni highspeed digital io devices offer another option for many common tests incorporated in the digital device design process. Dftassisted testing ac loopback testing highspeed seriallink loopback testing testing the equalizers iv. 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. Serial core instrument with optical io expansion instrument.
You can mix standard and safety io in the same system. Ransom stephens high speed serial io training course helps engineers master electrical signal analysis and hardware debug at data rates from 2. Guidelines for designing highspeed fpga pcbs timedomain reflectometry figure 2. Apr 16, 2017 this book was published by xilinx in 2005. 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. 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. These blocks convert data between serial data and parallel interfaces in each direction. 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. Apply to designer, design engineer, engineer and more.
Highspeed io offchip links serial data transfer parallel data bus fr4 skin effect dielectric loss clock phase alignment derived clocking source synchronous. Familiarity with serial io basics and highspeed serial io standards is also helpful. Testing of embedded clock high speed serial io iii. The design uses the xilinx ethernet solution suite along with a xilinx gigabit transceiver gt to form the ethernet interface. High speed transfers require devices that can directly. This rest of this paper provides design details for highspeed clockless transceivers and is organized as follows. A serializerdeserializer serdes pronounced sirdeez or sirdez is a pair of functional blocks commonly used in high speed communications to compensate for limited inputoutput. They are being provided on an asis basis and as an accommodation. The term serdes generically refers to interfaces used in various. This new technique is a novel implementation and reinvention of the quarterwave impedance transformer design originally adopted in the rfmicrowave systems. At these high link speeds, the byte by byte transfers described in the serial port design pattern prove inadequate. 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. On the other hand, some applications, such as high speed transfer protocols for analogtodigital and.
Familiarity with serial io basics and high speed serial io standards is also helpful. Whether youre switching fields or want to get caught up to the state of the art, youll get what. Common io design strategies for highspeed interfaces. 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 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.
High speed serial io validation engineer intern job description. Passive equalizer design on high density interconnects for 25gbps high speed io and beyond abstract. A highspeed clock running at the serial data rate is usually required. The on board srio can also provide communications connectivity to third party tools, fpgas, srio switches and srio equipped embedded processors.
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. I opins should be configured as output and driven to static low in the. As a result, an analog pll phaselocked loop based frequency multiplier in. The term serdes generically refers to interfaces used in various technologies and applications. Each port supports up to 400gbs in aggregate over an 8 x 50gbs electrical interface.
Highspeed serial io design for channel limited and. Highspeed serial interfaces are proliferating in chips used in the metro. Dftassisted testing ac loopback testing high speed serial link loopback testing testing the equalizers iv. Highspeed converter data sourcecapture boards design. 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. Low propagation delay, highrate loadswitching makes the device suitable for nextgeneration highspeed plc systems. To reduce cost, this highspeed clock is normally generated from an offchip lowfrequency quartz crystal. 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. Advanced printed circuit board design for emi and signal integrity. The serial core instrument with 16 multigigabit io ports can support a mix of copper and optical io.
The focus of our work is on lowvoltage, lowpower circuit design in the most advanced cmos and cmos soi technologies. 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. Passive equalizer design on high density interconnects for. The following evaluation boards are compatible with high. The max14900e is an octal power switch that features perchannel configuration for highside or pushpull operation. The same gt is used to interface with the gigabit ethernet physical coding sublayerphysical media dependent pcspma and the 10g ethernet pcspma ip core. Systemlevel interconnect testing interconnect testing with boundary scan interconnect testing with highspeed boundary scan interconnect builtin selftest v. These design examples may only be used within intel corporation devices and remain the property of intel. An important research topic is the design of compact lowpower io transceivers for both chiptochip and backplane communication applications. Embedded processors nowadays are connected with each other via high speed serial links. 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. Systemlevel interconnect testing interconnect testing with boundary scan interconnect testing with high speed boundary scan interconnect builtin selftest v. 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.
Highspeed serial io design for channel limited and power. In general, due to their internal architecture, the data transfer delay, or the latency, may vary after a reset of the device. At intel, the infrastructure and platform solutions group ipsg is the place to be to expand your high speed signal knowledge. 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. 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.
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. High speed serial io validation engineer intern careers at. Electronic devices crave speed, speed, and more speed, which has triggered the creation and implementation of an array of serial interfaces across. Digital io for test, control, and design national instruments. You hand the schematic to your layout person who puts all.
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. As a result, an analog pll phaselocked loop based frequency multiplier in the transmit clock generator is needed. Pam4 defines four voltage levels for logic, rather than the usual two, packing twice the data into every clock cycle. Highspeed serial io made simple by abhijit athavale, carl christensen.
Max14900e octal, highspeed, industrial, highside switch. Your project will be the design of a circuit that processes the input data from a highspeed io. On the other hand, some applications, such as highspeed transfer protocols for analogtodigital and. 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. Intels cpu servers power the cloud, enterprise systems, and data centers.
Pcb and high speed serial interface hssi design guideline. 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. High speed analog design and application seminar 51 texas instruments section 5 high speed pcb layout techniques scenario. See how three key innovationsdifferential signaling, clock recovery, and equalization enabled todays high data rates.
Serial rapidio srio architectures in embedded systems. Xilinx is providing this design, code, or information as is. 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. Our interconnect solutions range from highspeed, highdensity pluggable connectors to consumer io and legacy d subminiature and modular jack connectors. Xilinx kintex ultrascale 6u openvpx fpga board 6xz3. This processing is generally done in a mixed signal manner today. Apr 07, 2016 this book was published by xilinx in 2005. Highspeed serial io design for channellimited and powerconstrained systems samuel palermo. M horowitz ee371 lecture 2 2 readings readings techniques for highspeed implementation of nonlinear cancellation, sanjay kasturia and jack h. 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.
For applications requiring highspeed stimulusresponse tests or nonstandard voltage levels, for example, ni hsdio devices complement multifunction rio devices in the design cycle. Xilinx simplifies and lowers cost for highspeed serial. Tdr voltage plot with cable connected to pcb figure 3 shows an expanded curve for the sma connector. Now, all of these vendors have moved to higherthroughput pam4 technology for their fastest highspeed serial io transceivers. Familiarity with logic design state machines and synchronous design basic knowledge of fpga architecture and xilinx implementation tools is helpful. Its an intense two days, but i promise that youll have a good time. Definition of high speed the speed at which one or more digital abstractions fail, as a direct consequence of the circuit speed speed. Section 2 discusses the threewire asynchronous signaling protocol used for dataencoding on the highspeed serial bus. This processing is generally done in a mixed signal manner today, but. Hsdio devices can also interface with higher speed devices, transferring data at rates up to 400 mbs. Pdf an overview of highspeed serial io trends, techniques and. Highspeed digital, analogue and emc engineering oxford. Download data sheet request more info the v1141 is the lowest power and most secure programmable.
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