Vivado 2020. Send Feedback. A line of code in the latest version of AMDGPU Linux drivers reveals that "Vega 20" will support xGMI. XGMII (10 gigabit MII, "X"はローマ数字で10を意味する) は、10Gbps通信用途の MII。2002年に IEEE 802. of the DDR-based XGMII Receive data to a 64-bit data bus. 3 Clause 46, is the main access to the 10G Ethernet physical layer. • That data vector is then used to generate a 2 -bit synchronization header (Sync header for short), prepending the actual 64 -bit data vector – Content of Sync header depends on data carried in 64- conversion between XGMII and 2. If not, it shouldn't be documented this way in the standard. If not, it shouldn't be documented this way in the standard. This interface operates at 322. CPRI and OBSAI—Deterministic Latency Protocols 4. 3-2008, defines the 32-bit data and 4-bit wide control character. It consists of a physical coding sublayer (PCS) function and an embedded physical media attachment. SWAP C. XGMII Tx Data: While interfacing with 32-bit of the clock and xgmii_txd[63:32] is mapped to the negative edge. 10 gigabit media-independent interface (XGMII) is a standard defined in IEEE 802. System battery specifications. Furthermore, the multi-port transceiver chip can connect any one of serial ports to another serial port or to one of the parallel ports. An illustrative method is disclosed to include at least one data port configured to enable data transmission in compliance with a communication protocol. This line tells the driver to check the state of xGMI link. 5. Avalon ST to Avalon MM 1. The following features are supported in the 64b6xb: Fabric width is selectable. Each of the four XGMII lanes is transmitted across one of the four XAUI lanesIf not, it shouldn't be documented this way in the standard. 3. 3z Task Force 7 of 12 11-November-1996 microsystems Clocking for Serializer-Deserializer Compatibility Implementation I Timing: PLL in SERDES, MAC without PLL Cycle Time = Tcid + Tco + Tbrd + Tis + Tcsk - (Tb-Ta) Attachment Unit Interface (XAUI) may optionally be used to extend the operational distance of the XGMII with reduced pin count (see Clause47). 3. 23 incorporation thereof in its product, protocols or testing procedures. 64-bit XGMII for 10G (MGBASE-T). Furthermore, the multi-port transceiver chip (400) can connect any one of serial ports (104) to another serial port or to one of the parallel ports. A multi-port Serdes transceiver includes multiple parallel ports and serial ports, and includes the flexibility to connect any of the parallel ports to another parallel port or to a serial port, or both. Since you will only be connecting to 10GBase-T through an external (i. The core is designed to work with the latest Virtex™ 6, Virtex 5 and Virtex 4 and Virtex II Pro and Spartan®-6 platform FPGAs and integrate seamlessly into the design flow. -Developed the test plan document. I know there is a ip called GMII to RGMII yet my fpga part is xc7k160tfgg2 so it doesn't supports this IP. A transport protocol, such as UDP or TCP is the payload of the network protocol. An automatic polarity swap is implemented in a communications system. Figure 1: Protocol Layer1 Verification environment. A first input of data including a first sequence-ordered set in compliance with a first interface protocol is received from a medium access control (MAC) layer. 1G/2. . Up to 24 PCIe Gen3 lanes, supporting ports as wide as x8. CRC check module (crc) The CRC32 check of an IP packet is calculated at the destination MAC Address and is calculated until the last data of a packet. 29, 2002, which is incorporated herein by reference. A multi-port SERDES transceiver includes multiple parallel ports and serial ports, and includes the flexibility to connect any one of the parallel ports to another parallel port or to a serial port, or both. Network-side interface 1. Reconfiguration Signals 6. e. > * The XGXS /A/ character (at least, and maybe others) is not > a part of XGMII protocol, I believe. 3-2008 Choice of external XGMII or internal FPGA interface to PHY layer (internal interface only on Spartan®-6 devices) AXI4-Stream protocol , in both directions MDIO STA master interface to manage PHY layers Extremely customizable; trade , physical layer ( PHY ) device, for. 29, 2003, which claims the benefit of U. 16. It is immediately followed by the Ethernet frame, which starts with the Destination MAC Address. 5-gigabit Ethernet. The 1G/2. 5 MHz. Note: 10GBASE-R is the single-channel protocol that. Broadcom 88480-DG105-PUB February 19, 2021 BCM88480 Traffic Management Architecture Design GuideXGMII XXVGMII 40G/50G Ethernet Subsystem (50GEMAC / 50GBASE-KR2 / LAUI ) (v2. Otherwise you should favor the protocol that will work with other devices. These characters are clocked between the MAC/RS and the PCS at. Avalon MM 3. A line of code in the latest version of AMDGPU. 5G/5G/10G speeds based on packet data replication. 2. 3ae で規定された。 2002年に IEEE 802. 5G/5G/10G Multirate Ethernet PHY Intel® FPGA IP core implements USXGMII PCS based on Cisco specification. References 7. See the 6. 6. 4. A man agement data IO pad also enables the transceiver to Support different electrical requirements and data protocols at the Same time. Interlaken 4. 5G. (XGMII to XAUI). 5 Gb/s and 5 Gb/s XGMII operation. 25 Gbps). 4. 125GBaud/s PCS = Physical Coding Sublayer PMA = Physical Medium Attachment PMD = Physical Medium Dependent. A cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. The full spec is defined in IEEE 802. First data couplings may be provided through the crossbar between the plurality. DUAL XAUI to SFP+ HSMC BCM 7827 II. 4. System dimensions. Software is only used for configuring the system, that means configuring the sensor and the GigE Vision IP. 3125 GHz Serial SFP+ MSA XAUI (“Zowie”) 10 Gbit/s 4 Lanes 16 3. XAUI. IEEE 802. These characters are clocked between the MAC/RS and the PCS at. AXI stream interface to core logic on one side, raw serdes interface for 10GBASE-R on the other side, with no extra stuff (XGMII) in between. (at least, and maybe others) is not > > > a part of XGMII protocol, I. Depending on the packet length, the protocol. 3ae. Installing and Licensing Intel® FPGA IP Cores 2. XAUI for more information. Basavanthrao_resume_vlsi. In the FPGA world where the MAC and PHY are implemented in the same chip technically this interface layer is not required, as. 265625 MHz, and output 32-bit auto-negotiation data in a format shown in the following table at 312. As a result the above text only applies to XGMII 10 Gb/s operation and IEEE 802. The AXGTCTL. 2 and the MAC address is set to 00-0A-35-01-FE-C0 , (can be replaced by yourself) as shown in Figure 14. For 100M/1G GMII is mapped into XGMII in the Rate Adaptation/Replication block. US20080304579A1 US12/222,367 US22236708A US2008304579A1 US 20080304579 A1 US20080304579 A1 US 20080304579A1 US 22236708 A US22236708 A US 22236708A US 2008304579 A1 US2008304579 AThe 10GBASE-R PHY uses the XGMII interface to connect to the IEEE802. 949962] NET: Registered protocol family 15 [ 2. 1 XGMII Interface The XGMII interface connects the Reconciliation Sublayer (RS) with the IP and allows transferring information to/from as defined in Clause 46. • /T/-Maps to XGMII terminate control character. XFI is a fixed speed protocol. 2 SerDes 1 and SerDes 2 Protocols" in LS2088 Reference Manual for details. Up to 16 Ethernet ports. The lossless IPG circuitry may include a lossless IPG insertion circuit and/or a lossless IPG removal circuit. A multi-port SERDES transceiver includes multiple parallel and serial ports, and the flexibility to connect any one of the parallel or serial ports to another parallel or serial port. 10. 3. 2. 3ae で規定された。 72本の配線からなり、156. Are there any other protocols where the TX and RX pairing are similar to CAN ? $endgroup$ – user220456. That being said, there may be an assumption made that a 10 Gb/s MAC/RS/XGMII implementationprotocol to be applied on these two signals, where MDIO carries the serial data and MDC provides a clock reference to for the serial data. Due to the continuously signaled nature of the underlying PMA, and the encoding performed by the PCS, the 10GBASE-X PCS maps XGMII data and control characters into a code-group. TSO (TCP Segmentation Offload) feature is supported by GMAC > 4. The physical coding sublayer (PCS) is a networking protocol sublayer in the Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet standards. 930855] NET: Registered protocol family 10 [ 2. XGMII Encapsulation 4. Generic IOD Interface Implementation. Pat. > * The XGXS /A/ character (at least, and maybe others) is not > a part of XGMII protocol, I believe. Each XGMII port 102 can include 74 data pins, for example, operating at 1/10 the data rate of the serial ports 104. A multi-port Serdes transceiver (400) includes multiple parallel ports (102) and serial ports (104) and includes the flexibility to connect any one of the parallel ports to another parallel port or to a serial port, or both. The IEEE 802. 20% or 3% above) of decrease in user data bandwidth due to encoding is also known as encoding or protocol overhead. 101 Innovation Drive. The XGMII protocol is a formalized way for two hardware blocks (typically the MAC & PHY) to communicate when a packet starts/ends and if there`s any errors detected on the line. SoCKit/ Cyclone V FPGA A. イーサネットフレームの内部構造は、ieee 802. A line of code in the latest version of AMDGPU Linux drivers reveals that "Vega 20" will support xGMI. Code replication/removal of lower rates onto the. The first input of data is encoded into four outputs of encoded data. Figure 49–4 depicts the relationship and mapping XGMII Mapping to Standard SDR XGMII Data 5. High status signifies that the byte is a control character and low status indicates that data is carried out by the byte. Operating Speed and Status Signals. Reset Signals; 6. The Substrate layout of the transceiver is conA multi-port SERDES transceiver includes multiple parallel and serial ports, and the flexibility to connect any one of the parallel or serial ports to another parallel or serial port. Tutorial 6. 25 MHz Parallel IEEE standard XFI (“Ziffie”) 10 Gbit/s 1 Lane 4 10. TX Timing Diagrams. 1G/10GbE GMII PCS Registers 5. 26, 2014 • 1 like • 548 views. Each XGMII port 102 can include 74 data pins, for example, operating at 1/10 the data rate of the serial ports 104. For example, the 74 pins can transmit 36 data signals and receive 36 data. Currently I'm using a LS1046ARDB board and trying to use the SFP+ Port in SGMII protocol instead of XFI. An illustrative method is disclosed to include at least one data port and lossless IPG circuitry operating on the transmit side and/or receive side of the data transmission system. 3 Clause 37 Auto-Negotiation. Packets / Bytes 2. A first input of data including a first sequence-ordered set in compliance with a first interface protocol is received from a medium access control (MAC) layer. • SerDes Block System Register: The SerDes block system registers control the SerDes blockA cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. 3 is silent in this respect for 2. 935642] Segment Routing with IPv6 [ 2. Custom protocol. Or to put it in other words, how are XFI, SFI, and KR related in terms of protocols? For example, given that the electrical specs do match, can I directly connect the XFI interface e. 25 Gbps for 1G (MGBASE-T) and. The lossless IPG circuitry may include a lossless IPG. e. • /E/-Conveys errors(RD,Invalid code groups) to XGMII. The first input of data is encoded into four outputs of encoded data. 2 Physical Medium Attachment (PMA) sublayerA reconciliation layer may communicate with a subsequent layer (or device) via a 10 GB/s medium independent interface (XGMII) protocol. In one example, optional 10 GB/s extender sublayers (XGXS) may be implemented to convert the short run XGMII protocol to a long run 10 GB/s attachment unit interface (XAUI) protocol and back again. SWAP C. full-duplex at all port speeds. Includes modules for handling Ethernet frames as well as IP, UDP, and ARP and the components for constructing a complete UDP/IP stack. The plurality of cross link multiplexers has a destination port coA communication device, method, and data transmission system are provided. The data bus carries the MAC frame with the most significant byte occupying the least significant lane. 1. XGMII Conversion, XGMII to GMII conversion, and arbi-trator module. These are. Modules I. Table 1. Reconfiguration Signals 6. 5x faster (modified) 2. In contrast, the native PHY provides broad access to the low-level hardware, allowing you to configure the transceiver to meet your design requirements. Reconciliation Sublayer (RS) and XGMII. 3-2008, defines the 32-bit data and 4-bit wide control character. It is called XSBI (10 Gigabit Sixteen Bit Interface). San Jose, CA 9513An automatic polarity swap is implemented in a communications system. 18. The parallel transceiver ports 102 a,b can be XGMII parallel ports, for example, where the XGMII transceiver protocol is known to those skilled in the arts. Transceiver Status and Transceiver Clock Status Signals 6. A multi-port Serdes transceiver includes multiple parallel ports and serial ports, and includes the flexibility to connect any one of the parallel ports to another parallel port or to a serial port, oEmbodiments described herein provide a method for providing a compatible backplane operation mechanism for 2. 25 MHz) for connection to lower layers (e. These characters are clocked between the MAC/RS and the PCS at both the positive and negative edge (double data rate – DDR) of the 156. 24 SerDes lanes, operating up to 25 GHz. Attachment Unit Interface (XAUI) may optionally be used to extend the operational distance of the XGMII with reduced pin count (see Clause47). 3ae). Problem is, my fpga board only supports RGMII interface. 5G. However, the XGXS is an older standard interface and is being absorbed into both MAC and PHY devices by silicon manufacturers. You can dynamically switch the PHY. In other words, a data unit on an Ethernet link transports an Ethernet frame as its payload. protocol processors to help to perform switching and parsing of packets. 3 protocol and MAC specification to an operating speedof 10 Gb/s. In such a configuration, it is possible to cross-connect the differential data lines or signals at the interface, which will cause. This device supports three MAC interfaces and two MDI interfaces. 23877. 5G/5G/10G Multirate Ethernet PHY Intel® FPGA IP Parameters. 3bz-2016 amending the XGMII specification to support operation at 2. 2. 168. XGMII Transmission 4. Figure 33. A communication device, method, and data transmission system are provided. 3) PG211: AXI4-Stream QSGMII* (v3. The tcpIpPg project is a set of verification IP for generating and receiving 10GbE TCP/IPv4 Ethernet packets over an XGMII interface in a Verilog test environment. 35 MB, MIME type: application/pdf)Embodiments described herein provide a method for providing a compatible backplane operation mechanism for 2. Modules I. 2 interfaces, ten 1-Gigabit Ethernet ports and one 10-Gigabit Ethernet port with integrated MACs Software compatible with NP-2 and NP-1c Integrated Traffic Managers Traffic management for traffic on ingress and egress paths Work conserving and non-work conserving schedulersAMDGPU XGMI Support. Register Interface Signals 5. Neutral RD,hence current RD not affected by /R/’s insertion or deletion. Furthermore, the multi-port transceiver chip (400) can connect any one of serial ports (104) to another serial port or to one of the parallel ports. /K/ or /R/ are neither part of RS protocol nor transported across the XGMII. 3 GMII IMPLEMENTATION ON THE C-5Attachment Unit Interface (XAUI) may optionally be used to extend the operational distance of the XGMII with reduced pin count (see Clause47). Before sending, the data is also checked by CRC. Compatible. The design in CORE Generator contains necessary updates for Virtex-II and later devices. 2. 3-2008 specification requires each 10GBASE-R link to support a 10 Gbps data rate at the XGMII interface and a 10. 5-gigabit Ethernet. As such, CoaXPress-over-Fib-• XGXS/XAUI extension (to implement a 10 Gbps XGMII Ethernet PHY interface) • Native SerDes interface facilitates implementation of Serial RapidIO (SRIO) in FPGA fabric or an SGMII interface to a soft Ethernet MACBut you are proposing > > leaving it in the data stream, encoding it, and shipping it > > out thru the PMD. 1. 1. the Signal Protocol Indicating the LF or RF Message. 5G/10G. But you are proposing > leaving it in the data stream, encoding it, and shipping it > out thru the PMD. • /S/-Maps to XGMII start control character. The following features are supported in the 64b6xb: Fabric width is selectable. Understanding the Ethernet Nomenclature – Data Rates, Interconnect Mediums and Physical Layer. 5x faster (modified) 2. Arria 10 Transceiver PHY Architecture 6. Avalon MM 3. The Start character (0xfb) and the Tail are imposed fields by the XGMII protocol. But you are proposing > > leaving it in the data stream, encoding it, and shipping it > > out thru the PMD. Serial. 16 Cortex-A72 CPU cores, running up to 2. The device also supports SGMII MAC-side autonegotiation on each individual port, enabled through register 16E3, bit7, of that port. XGMII = 10 Gigabit Media Independent Interface PCS = Physical Coding Sublayer AN = Auto-Negotiation Sublayer PMA = Physical Medium Attachment PMD = Physical Medium. 3 Overview. 5 Mbps)で動作する主信号 TXD/RXD 各32本と、制御フロー RXC/TXC 各4本が送受. For example, the 74 pins can transmit 36 data signals and receive 36 data. 9. 3125 GHz Serial SFP+ MSA XAUI (“Zowie”) 10 Gbit/s 4 Lanes 16 3. But you are proposing > leaving it in the data stream, encoding it, and shipping it > out thru the PMD. An illustrative method is disclosed to include at least one data port configured to enable data transmission in compliance with a communication protocol. FAST MAC D. 3125 GHz Serial Cisco services to XGMII:! Encodes/Decodes 8 XGMII data octets to/from 66 bit blocks! Transfers encoded data to/from PMA in 16 bit transfers. USXGMII Subsystem. It achieves 10Gbps line-rate and has two interfaces with two different clock domains. XGMII, as defi ned in IEEE Std 802. 3125 Gb/s link. For SGMII, use soft-CDR mode and DPA mode (source synchronous mode) in the receive datapath for data communication. 2 GHz. SWAP C. The XGMII design in the 10-Gig MAC is available from CORE Generator. In the transmit direction, the 10GBASE-X PCS accepts packets from the PCS client on the XGMII. 325Gbps SERDES • PHY PCS/PMA/PMD as appriorate for network interface type Introduction. • EPCS: This block is a basic mode used to extend the SerDes for custom support access to the FPGA fabric. 60/421,780, filed on Oct. 4. 7. 1G/10GbE Control and Status Interfaces 5. the 10 Gigabit Media Independent Interface (XGMII). Though the XGMII is an optional interface, it is used extensively in this standard as a. xGMI (inter-chip global memory interconnect) is a cable-capable version of AMD's Infinity Fabric interconnect. 10. A cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. The plurality of cross link multiplexers has a destination port configured to receive a signal and an origin port configured to produce the signal. A communication device, method, and data transmission system are provided. [1] In computer networking, an Ethernet frame is a data link layer protocol data unit and uses the underlying Ethernet physical layer transport mechanisms. The AXGRCTLandAXGTCTLmodules implement the 802. 4 XGMII stream). 5G SGMII. • Upon reception of four remote fault messages in 128 columns, the RS sets link_fault=Remote Fault and continuously transmits Remote Fault across XGMII. A packet consists of six fields: Start character, Source ID, Destination ID, Control, Payload, and Tail. Basavanthrao_resume_vlsi. Verification and validations were done using Modelsim and Chipscope Pro Analyzer. Processor specifications. An illustrative method is disclosed to include at least one data port and lossless IPG circuitry that operates on the transmit-side and/or receive-side of the data transmission system. 12/416,641, filed Apr. This optical module can be connect to a 10GBASE-SR, -LR or –ER. PMA 2. This XGMII supports 10 Gb/s operation through its 32-bit-wide transmit and receive data paths. It's exactly the same as the interface to a 10GBASE-R optical module. The ports include programmable pads that are capable of supporting multiple different data protocols, timing protocols, electrical specifications, and input-output functions. PTP Packet over UDP/IPv6. Bprotocol as described in IEEE 802. What is not symmetric is that the XGXS/XAUI/XGXS is not intended to sit "in the middle" of the XGMII so the notion of XAUI as a XGMII "extender" is not altogether appropriate for those individuals that can only envision an extender as something that goes in the middle. or deleted depending on the XGMII idle inserted or deleted. We would like to show you a description here but the site won’t allow us. Reproduced with permission of the copyright owner. But you are proposing leaving it in the data stream, encoding it, and shipping it out thru the PMD. 3 Overview (Version 1. 4. 3 Clause 46 but we will save you the legalize parse time and explain it in plain English. Microsemi's 10GE PHY portfolio is highly flexible, covering a broad range of port speeds and interface types. 1 - GMII to RGMII transform with using TEMAC Example Design. The received XGMII data are decoded to extract the auto-negotiation config words from auto-negotiation message. Historically, Ethernet has been used in local area networks (LANs. PHY is the. LAN の主流であるイーサネットで初めて WAN での利用を前提とした技術を含む [1] 。. 3 XGMII stream). No. It utilizes built-in transceivers to implement the XAUI protocol in a single device. 5 MHz. As some background - USXGMII is a MAC <-> PHY protocol, much like SGMII is for 1G rates, but for 10G rates instead. 3125 Gbps serial single channel PHY providing a direct connection to a XFP using the XFI electrical specification or SFP+ optical module using SFI electrical specification. 3-20220929P. Fundamentally the MII,SGMII,RGMII signals are for data that a MAC device converts to PHY. 10GbEは 1GbE に続く通信速度を持つプロトコルとして開発され、最初の規格は 2002年 6月 に IEEE 802. Supported media access control (MAC) interfaces are MII, RGMII and SGMII. Transceiver Configurations 4. The ports includ{"payload":{"allShortcutsEnabled":false,"fileTree":{"tb":{"items":[{"name":"arp","path":"tb/arp","contentType":"directory"},{"name":"arp_cache","path":"tb/arp_cache. If not, it shouldn't be documented this way in the standard. The plurality of cross link multiplexers has a destination port coBuy VSC7281VT-ES VITESSE , View the manufacturer, and stock, and datasheet pdf for the VSC7281VT-ES at Jotrin Electronics. (64bit XGMII internal interface). As far as I understand, of those 72 pins, only 64 are actually data, the remai. Introduction to Intel® FPGA IP Cores 2. 1G/10GbE PHY Register Definitions 5. Document Revision History 802. What is not symmetric is that the XGXS/XAUI/XGXS is not intended to sit "in the middle" of the XGMII so the notion of XAUI as a XGMII "extender" is not altogether appropriate for those individuals that can only envision an extender as something that goes in the middle. 14. Both media access control (MAC) and physical coding sublayer/physical medium attachment (PCS/PMA) functions are included. 2. Buy VSC7302 VITESSE , View the manufacturer, and stock, and datasheet pdf for the VSC7302 at Jotrin Electronics. > * The XGXS /A/ character (at least, and maybe others) is not > a part of XGMII protocol, I believe. This PCS can interface. The goal of the firmware is to apply multiple SiTCP cores as Gigabit protocol stack in the pixel. 3-2008, defines the 32-bit data and 4-bit wide control character. The RS adapts bit serial protocols of MAC layer to parallel encodings of 10 Gbps PHY sublayers. BACKGROUND OF. Dec. 3x. 5GPII Implementation as shown does not require much incremental logic Does not preclude implementations that directly map XGMII into PCS Diagram above for IEEE functional specification purposes only 1000BASE-X PHY 2. 1. Due to the continuously signaled nature of the underlying PMA, and the encoding performed by the PCS, the 10GBASE-X PCS maps XGMII data and control characters into a code-group stream. ! If connected to WAN PMD, inserts/deletes idles due to rate difference between MAC and PMD! Determines when link available, therefore informing management entity via MDIO when PHY is ready to be used. An illustrative method is disclosed to include at least one data port and lossless IPG circuitry that operates on the transmit-side and/or receive-side of the data transmission system. ) Active, expires 2024-01-05 Application number US10/266,232 Other versions US20040068593A1 (en Inventor Victor. Such protocol does not allow sending a frame arbitrarily at any time because a certain bit alignment is in order. In the proposed architecture, the custom protocol implemented over the XGMII introduces 12 bytes overhead per packet (Fig. Configuration. IEEE 802. Uses 7 series, Virtex 6, Virtex 5, Virtex 4, and Spartan 6 transceivers running 4 lanes at 3. The Link layer implements a packet-based protocol to append information to raw data bytes (Figure 4. VMDS-10298. USXGMII Subsystem. Cooling fan specifications. The file xgmi_device_id contains the unique per GPU device ID and is stored in the /sys/class/drm/card$ {cardno}/device/ directory. Depending on the configuration, the XGMII consists of 32- or 64-bit data bus and 4- or 8-bit control bus operating at 312. (at least, and maybe others) is not > > > a part of XGMII protocol, I. Serial Data Interface 5. DMTF shall have no liability to any 24 party implementing such standard, whether such implementation is foreseeable or not, nor to any patent 25 owner or claimant, and shall have no liability or responsibility for costs or losses incurred if a standard isThe PCS service interface is the XGMII, which is defined in Clause 46 running at 5Gb/s. , -- '07' signifying idle channel, 'fb' signifying start of a packet and 'fd' -- signifying end of packet for the physical channel to distinguish between -- real data and idle channel that results in high-impedance state in physical -- layer link. 3 10 Gbps Ethernet standard. 3 media access control (MAC) and reconciliation sublayer (RS).