A highspeed 64b66b decoder for serdes system was designed in tsmc 0. N8851a 100gbasekrcr 64b66b solution with link training. The chip is composed of block sync, descrambler, decode process and receive control. Therefore, continuous transmissin cant be realized with aurora 64b 66b, and 3 of bandwidth will be lost. The n8851a enables engineers to decode 64b 66b data and link training data in less than 30 seconds.
The decoder converts the 66bit code words back to xgmiicompatible signals. This scheme encodes 64 bits of data into 66 bits, providing a 3% overhead compared to the 20% overhead of 8b10b encoding. Decode annotation information condenses or expands depending on the timebasezoom ratio setting. The encoding and decoding rules of 64b 66b and inherent characteristic among 64b 66b codes are studied in this paper.
Intel stratix 10 mx dram systeminpackage device overview. Us6650638b1 decoding method and decoder for 64b66b coded. The softwareis combines both a 64b 66b decoder and a link training decoder. The overhead of 64b66b encoding is 2 coding bits for every 64 payload bits or 3. A hardware implementation of 64b66b encoder decoder is introduced, which combines the advantages of lookuptable and logic analysis methods with low resource consumption, high speed and high reliability. Introduction to 10 gigabit 64b 66b clause 49 sowmya s. The 64b66b symbol decode information is annotated on the physical layer waveform. The protocol specification is open and available upon request. In data networking and transmission, 64b 66b is a line code that transforms 64bit data to 66bit line code to provide enough state changes to allow reasonable clock recovery and alignment of the data stream at the receiver. The encoding and decoding rules of 64b66b and inherent characteristic among 64b66b codes are studied in this paper. Completely written in pure pascal from version 2 they should compile in every pascal compiler known to man. The information disclosed to you hereunder the materials is pr ovided solely for the selection and use of xilinx products.
A hardware implementation of 64b66b encoderdecoder is introduced, which. Hardware implementation of 64b66b encoderdecoder for 10. Its the last sentence that im concerned about, the statement on the odds of producing a 65bit sequence of all 0s or all 1s. Currently, i get 2 bit header and corresponding 64 bit descrambled payload at positive edge of every other clock cycle. Feb 03, 2009 the 64b 66b encoder 110 includes an encoder 112 and a scrambler 114. Hardware implementation of 64b66b encoderdecoder for.
If a receiver is decoding 64b66b that has been further encoded with fec see 5. So the 65bit run length problem being discussed can only occur if. The 64b 66b signal encoding technique is used in 10 gigabit ethernet systems such as 10gbaser and 10gbasew as mentioned. Let us understand these signal encoding techniques below. Jun 06, 2014 download base64 file encoderdecoder for free. Do you have verilog code for this encoder and decoder. This is a considerable improvement on the 80% efficiency of the previouslyused 8b10b encoding scheme, which added 2 coding bits to every 8 payload bits. The n8851a 100gbasekr 64b 66b is the only solution that combines both a 64b 66b decoder and a link training decoder.
Veriloga code for 8b10b, 64b66b, 128bb encoderdecoders. A hardware implementation of 64b66b encoder decoder is introduced, which. Ion 64b66b ip 64b 66b highspeed serial interface highspeed serial interface achieved using a lightweight protocol ion 64b66b is an ip for highspeed serial interface targeting applications with interchip and interboard connections. To make the system can be work in high speed, we use a lot of serdes channel simulation in fpgas using ibisami. So the data rate is 127mhz66bits 8382mbps64 66b if i want to use 8b10b which data width is 8bits and clock rate is 127mhz,data rate is 127mhz10bits 1270mbps810b. Teledyne lecroy serial data 10gigabit ethernet decode. Aurora is a logicore ip designed to enable easy implementation of xilinx transceivers while providing a lightweight user interface on top of which designers can build a serial link. Cam and crank decoder and simulator measurement and simulation uart rs485rs422 aurora 64b 66b master and slave.
Easy hdtv dvr x64 is a simple hdtvdtv viewing and recording software for 64bit windows versions and atscqam tuner cards. For example, 64b 66b is used on 10gbaser as well as 10gbasew and 8b10b is used on 10gbasex system. A highspeed 64b 66b decoder used in serdes free download a highspeed 64b 66b decoder for serdes system was designed in tsmc 0. Xilinx xapp687 64b66b encoder decoder application note yumpu. Decoding method and decoder for 64b66b coded packetized. Unlike the ieee standard, there is no encodingthe payload data is simply the converter sample data that has been packed into frames of data by the.
Download citation hardware implementation of 64b66b encoderdecoder for 10gigabit ethernet the encoding and decoding rules of 64b66b and inherent. It features records digitalhdtv television shows in. I already succeed in stratix iv transceiver which using native 8b10b encoder decoder. Thus, the 64b66b coding uses 66 bits to represent the 64 received bits. So the 65bit run length problem being discussed can only occur if the following 64 bits all match the second bit of the preamble. N8815a infiniium 10gbasekr 64b66b and link training decode. A custom made aurora 64b 66b transmitter and receiver. Nov 18, 2003 decoding method and decoder for 64b 66b coded packetized serial data. A highspeed 64b 66b decoder for serdes system was designed in tsmc 0. A highspeed 64b66b decoder used in serdes scientific. Figure 1 shows how the 64b66b encodedecode logic of this. N8815a infiniium 10gbasekr 64b66b and link training. Within the 66b 64b scheme, the first two preamble bits must be 01 or 10.
Sep 4, 2008 peterj slide 1 8b10b coding 64b66b coding 1. Description due to the speed limitation of enhanced pcs, the 64b 66b encoder and decoder can run up to 22. Dvd decoder 64 bit download x 64bit download x64bit download freeware, shareware and software downloads. To reduce the overhead, 64b 66b encoding was created. So now i need to decode the 64b 66b encoded data according to the. The encoder 100 applies 64b66b encoding to blocks composed of two quads of the input data consecutively received from the pseudoxgmii bus 42, i. In general, such a failure is capable of hard crashing a computer system. Xilinx xapp687 64b66b encoder decoder application note 21 2003 figure 1 shows how the 64b66b encodedecode logic of this the 64b66b encoder takes xgmii signals consisting of a 64bit data and a. Use in combination with 64b 66b decode annotation separate option colorcoded decode overlaid on the waveform is intuitive and easytoread decode information expands as the time base is. The 64b66b coding applied by the encoder 100 that generates the bitstream for decoding by the decoder and decoding method according to the invention will now. A highspeed 64b66b decoder used in serdes free download a highspeed 64b66b decoder for serdes system was designed in tsmc 0. Xilinx xapp687 64b66b encoder decoder application note. The n8851a enables engineers to decode 64b 66b data and link training data in.
Figure 1 shows how the 64b 66b encodedecode logic of this application fits in a complete system. The data passes through multiples steps, all based on the original 64b 66b aurora. N8815a infiniium protocol viewer software for 10gbasekr ethernet is the only 64b 66b protocol decoder technology available on a real time oscilloscope, providing timecorrelated views of physical layer and transaction layer errors. Decoding method and decoder for 64b 66b coded packetized serial data. The 64b 66b decoding unit is configured to decode the received 66bit block data to obtain eight 8bit data and one 8. Ottawa, on may 23, 2000 64b66b coding update ieee 802. Biss decoder, encoder, and sniffer measurement and simulation spi master, slave, and sniffer. Ion 64b66b ip 64b66b highspeed serial interface mpression. The decode operation is fasteven with long acquisitions. Introduction technologies which use 64b66b encoderdecoder blockdiagram function of 64b 66b encoder vector types control characters encoding tables valid and invalid encoding example introduction 8b10b encoding provided the transition rich data along with a dc balanced data stream for many standards in the past as serial rates increase to 3. Download citation a highspeed 64b66b decoder used in serdes a highspeed 64b66b decoder for serdes system was designed in tsmc 0. After initialization, ap plications can pass data across the channel as frames or streams of data.
Downloads 361,927 compatible windows xp, vista, 7 3264 bit, 8 3264 bit, may 24, 20. Changed some of the features listed in the stratix. Emulation of encoding x bytes of random data to xgmii format and then to 64b 66b format sk1f3rxgmii 64b66b. Keysight n8851a 100gbasekrcr 64b66b and link training.
For the 64b 66b link layer, the 66bit block of data is two sync header bits followed by eight octets of sample data and is partially based on the block format defined in ieee 802. This enables engineers to decode 64b 66b data and link training data in less than 30 seconds. Sep 4, 2008 peterj slide 3 flip flop d c q transmission system propagation delay clock data unequal. A hardware implementation of 64b66b encoderdecoder is introduced, which combines the advantages of lookuptable and logic analysis methods with low resource consumption, high speed and high reliability. So why not upload a peice software today, share with others and get rewarded. It includes a suite of configurable protocollevel searches and softwarebased triggering specific to 64b 66b and link training of ethernet technologies such as 100gbasekrcr. Decoding method and decoder for 64b 66b coded packetized. Lightweight link layer protocol provides onetoone data movement via one or more highspeed serial lanes. The softwareis combines both a 64b66b decoder and a link training decoder.
Aurora 64b 66b cores automatically initialize a channel when they are connected to an aurora 64b 66b channel partner. To ensure the operation of the components a loopback test is available. Aurora 64b66b is a scalable, lightweight, linklayer protocol for highspeed serial communication. Various sections of the protocol are colorcoded to make it easy to understand. In data networking and transmission, 64b66b is a line code that transforms 64bit data to 66bit. Veriloga code for 8b10b, 64b 66b, 128bb encoderdecoders. To make the system can be work in high speed, we use a lot of technology such as pipeline strategy, optimization of complicated logics and parallel descrambler. The 64b66b coding applied by the encoder 100 that generates the bitstream for decoding by the decoder and decoding method according to the invention will now be described with reference to figs. The frame of data that is decoded is one of a set of frames that represent a packet of information words, and that additionally represent coded control words preceding and following the packet. The frame of data that is decoded is one of a set of. The algorithm of encoding and decoding is described with verilog hdl. At the input to the 64b 66b encoder 110, 8 characters are input at a time e. Xilinx xapp687 64b 66b encoder decoder application note.
Search 64 66b encoder verilog, 300 results found verilog jpeg encoder this core takes as an input the red, green, and blue pixel values, like from a tiff image file, and creates the jpeg bit stream necessary to build a jpeg image. Ep13123a2 64b66b decoding, for packetized serial data. The 64b 66b decoder 120 includes a decoder 122, a descrambler 124, and a block synchronizer 126. I need to design a 64b 66b decoder on receiver side of the gty transceiver. Highspeed serial interface achieved using a lightweight protocol ion 64b66b is an ip for highspeed serial interface targeting applications with interchip and interboard connections. Us6650638b1 decoding method and decoder for 64b66b. Very small utilities that encodedecodes files intofrom base64 respectively. For every field that is filled out correctly, points will be rewarded, some fields are optional but the more you provide the more you will get rewarded. Each character is represented by 8 data bits d and a single.
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