Previous definition/implementations cover single (SGMII) and quad (QSGMII) options. PHY /Link interface specification , . Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed;The interface between the PCS and the RS is the XGMII as specified in Clause 46. The interface between the PCS and the RS is the XGMII as specified in Clause 46. The XGMII interface defines the 32-bit data and 4-bit wide control character clocked between the MAC/RS and the soft PCS at both the positive and negative edge (double data rate – DDR) of the 156. Table 1. 3-2008 specification. 5. A second version of the SDIO card is the Low-Speed SDIO card. Check MAC PHY XGMII interface signals, no data sent out from MAC. status instance: The stp screenshot shows that both channel 0 and 1 are ready with resets de-asserted. Configuration of the core is done through a configuration vector. 1. 5G, 5G, or 10GE data rates over a 10. The interface between the PCS and the RS is the XGMII as specified in Clause 46. Avalon® Memory-Mapped Interface Signals 6. 5. Resetting Transceiver Channels 5. MII Interface Signals 5. 1. PHY 8. 7. - Deficit Idle Count per Clause 46. 10 Gigabit Attachment Unit Interface (XAUI / ˈ z aʊ i / ZOW-ee) is a standard for extending the XGMII (10 Gigabit Media Independent Interface) between the MAC and PHY layer of 10 Gigabit Ethernet (10GbE) defined in Clause 47 of the IEEE 802. It is primarily used to connect a video source to a display device such as a computer monitor. 0. 3-2008, defines the 32-bit data and 4-bit wide control character. The IEEE 802. 5G/5G/10G Multi-rate Ethernet PHY Intel® FPGA IP User Guide. g) Modified document formatting. Standardized. 3-2008, defines the 32-bit data and 4-bit wide control character. The subsidized sponsorship of standards via the IEEE GET Program helps expand the global reach of technical knowledge developed by industry, accelerates adoption of IEEE standards, contributes to an open knowledge community, promulgates open information exchange to foster innovation, and connects the IEEE brand with the development of. - XGMII Interface (64-bit single clock edge) - POS-L3 like Interface for core logic side. Each comma is. AMD provides a parameterizable LogiCORE™ IP solution for the 10 Gigabit per second (Gbps) Ethernet Media Access Controller function used to interface to Physical Layer devices in a 10Gbps Ethernet (10GE) system. 3. ) • 1. 4. Collection of Ethernet-related components for gigabit, 10G, and 25G packet processing (8 bit and 64 bit datapaths). 1. 11/13/2007 IEEE 802. The XAUI interface is a backplane interface, Chip-to-Chip interface, or board interface. The test parameters include the part information and the core-specific configuration parameters. 6. WishBone version: n/a. The code-group synchronization is achieved upon th e reception of four /K28. Figure 3: 10GBASE-X PHY Structure. As you can tell, functional requirements is an extensive section of a system requirements specification. Field Name Type Description; openapi: string: REQUIRED. > 3. • Once in PCS_Test, there is a problem if the MAC signals LPI over the XGMII interface since this can initiate a transition to QUIET before the Link Partner PHY is ready. Code replication/removal of lower rates onto the 10GE link. This table shows the mapping of this non-standard format to the standard SDR XGMII interface. 0 > 2. > > 1. In this demo, the FiFo_wrapper_top module provides this interface. Thanks, I have this problem too. Unlike previous Ethernet. AUTOSAR Interface. The PHY IP core can be used with either Intel® FPGA IP for 10G Ethernet MAC or with a customer-developed Ethernet MAC via a standard XGMII interface running at 156. 4. Figure 4: 10GBASE-R PHY Structure. Supports 10M, 100M, 1G, 2. •400 Gb/s Ethernet • Support a MAC data rate of 400 Gb/s • Support a BER of better than or equal to 10^-13 at the MAC/PLS service interface (or the frame loss ratio equivalent) for 400 Gb/sBeginner. This block contains the signals TXD (64-bits) (Transmit data), TXC (8-bits) (Transmit control), RXD (64-bits) (Receive data), and RXC (8-bits) (Receive control). 5. The next packet type on the interface will be initial flow control credits i. XFI and SFI electrical specifications respectively apply to XFP and SFP+ system front port optical modules. In this demo, the FiFo_wrapper_top module provides this interface. A separate APB interface allows the host applications to configure the Controller IP for Automotive. GMII- Gigabit Media Independent Interface: A digital interface that provides an 8-bit wide datapath between a 1000 Mbit/s PHY and a MAC sublayer. The XgmiiSource and XgmiiSink classes can be used to drive, receive, and monitor XGMII traffic. The XgmiiSource and XgmiiSink classes can be used to drive, receive, and monitor XGMII traffic. 4. In this demo, the FiFo_wrapper_top module provides this interface. MAU. Intel® Stratix® 10 L-Tile/H-Tile Transceiver PHY Architecture 6. Overview 2. XGMII interface in my view will be short lived. The SPI4. 3 Clause 49 BASE-R physical coding sublayer/physical The 10GBASE-R PHY uses the XGMII interface to connect to the IEEE802. Release Information 1. Interface”. 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. 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. But HSTL has more usage for high speed interface than just XGMII. I would like to get some clarification for the " Universal SXGMII Interface for a Single MultiGigabit Copper Network Port" specification. RGMII uses four-bit wide transmit and receive datapaths, each with its own source synchronous clock. Design Example MAC Variant PHY Development Kit 10GBase-R Ethernet 10G Native PHY Intel Arria 10 GX Transceiver SI. 5. XGMII Signals 6. The XGMII provides full duplex operation at a rate of 10 Gb/s between the MAC and PHY. 1 Throughput 11 2. That's obviously a reference to a DDR interface. 5GPII. Out: 72: 8-lane SDR XGMII transmit data and control bus. // Documentation Portal . nsc. 8. IEEE 802. 4. Inter-Frame GAP. Status Signals 6. SerDes TX RX MII Serial Figure 5–1. 3 standard. The PHY side of the MAC implements the XLGMII or CGMII protocol as defined by the IEEE 802. interface. While the XGMII is an optional interface, it is used extensively in this standard as a basis for functional specification and provides a common service interface for Clauses 47, 48, and 49. . Core10GMAC is configured for XGMII mode with a core data width of 64 bits. DisplayPort (DP) is a digital display interface developed by a consortium of PC and chip manufacturers and standardized by the Video Electronics Standards Association (VESA). Reconfiguration Interface and Dynamic Reconfiguration 7. XGMII Encapsulation. An optional physical instantiation of the PMA service interface has also been defined (see Clause 51). The component is part of the Vivado IP catalog. To describe all the essential features of the system, you will need 4-5 pages of content. The PCS IP is engineered to be quickly and easily integrated into any SoC, and to connect seamlessly to a Cadence or third-party MAC through a demultiplexed XGMII (64-bit data, 8-bit control, single clock-edge interface). 4. Several Physical Coding Sublayers known as 10GBASE-X, 10GBASE-R, and10GBASE-W are specified, as well as significant additional supporting material for a 10 GigabitMedia Independent Interface (XGMII), a 10 Gigabit Attachment. With experience of SSTL, I believe we can define the HSTL interface in more reasonable time frame. 8. Figure 4 shows the 10GBASE-R structure; besides the XGMII interface, another difference is the coding scheme changed from 8B/10B to 64B/66B . XGMII. 3-2012 specification and supports the high-bandwidth demands of network Internet Protocol. The PHY we have on the LS1046A RDB supports native XFI but sends PAUSE frames towards the MAC to regulate the lower speeds. 25 MHz interface clock. UK Tax Strategy. MAC – PHY XLGMII or CGMII Interface. 5 V MDIO I/O) RGMII. 12. 3 Clause 46, is the main access to the 10G Ethernet physical layer. . USGMII Specification. > 3. 25MHz, DDR) XGTMII[35:0] Output XGMII Transmit Data and Control Signals. XGMII Data Interface Signals XGTMIICLK Output XGMII Transmit Clock (156. 0, April 2015 2 LatticeECP3 and ECP5 XAUI IP Core User Guide. CAUTION: The implemented D-PHY resistor values need to be adjusted based on user design. Uses two transceivers at 6. AUTOSAR Interface. Interfaces. Comcores Ethernet MAC is silicon-proven and designed for easy integration into ASICs and FPGAs. The MAC core along with FIFO-core and SPI4/AXI-DMA enginesUSXGMII Subsystem. This specification supports longwave (wavelength is 1310 nanometers) Single-Mode Fiber (SMF) whose. After the 10 Gbps data is extracted from the four lanes, it must be formatted in a XGMII interface. 6 GHz and 4x Cortex-A55. XGMII Signals 6. The XGMII interface defines the 32-bit data and 4-bit wide control character clocked between the MAC/RS and the soft PCS at both the positive and negative edge (double data rate – DDR) of the 156. Return to the SSTL specifications of Draft 1. GMII TBI verification IP is developed by experts in Ethernet, who have. XAUI and XGMII Layers Section Content Transceiver Datapath in a XAUI Configuration XAUI Supported Features Transceiver Clocking and Channel Placement. 4 11/18 Microsemi Headquarters One Enterprise, Aliso Viejo, CA 92656 USA Within the USA: +1 (800) 713-4113 Outside the USA: +1 (949) 380-6100XAUI specification. the official core works at 1Gbps, and the MGT can be configured tow work at 2. Configuration Registers x. It would > be a shame for TF ballot to be delayed because of the absence of XGMII > electricals. XGMII interface in my view will be short lived. Being media independent means that different types of PHY devices for connecting to different media can be used. 1 Capacity and LBA count 10 2. 3. Konrad Eisele. The SERDES interface can be either a MAC interface or a media interface. 1. XGMII electricals > > > > > > >In an effort to get us all on the same page, here are links to >the standard XGMII interface proposals, SSTL-2 and HSTL Class 1 >on the JEDEC site under "Free Standards© 2012 Lattice Semiconductor Corp. Generate the design example from the Example Design tab of the LL 10GbE Intel® FPGA IP parameter editor. The IP core is compatible with the RGMII specification v2. It is used to achieve abstraction and multiple inheritances in Java using Interface. Received Ethernet bytes are available on the 64-bit XGMII interface (RX_MII_D/C). ANSI TR/X3. 3125 Gbit/s) • Data throughput is reduced: • inter-frame gaps are increased through extended operation of MPCP, which accounts for FEC parity insertion • Extra IDLEs are deleted in PCS and used to insert FEC partiyLow Power FPGAs. 4 SGMII interfaces mean 4 Tx and 4 Rx (8 in total) differential lines between the MAC and the PHY. Core10GMAC is configured for XGMII mode with a core data width of 64 bits. XAUI v12. The Universal Serial Gigabit Media Independent Interface (USGMII) is an extension of the current SGMII and QSGMII. AUI – Attachment unit interface. XFI来源于XFP光模块标准的一部分，指的是连接ASIC芯片和XFP光模块的电气接口。. 1. • Operate in both half and full duplex and at all port speeds. This SGMII solution meets the SGMII specification and saves cost and power in systems that have low to high port-count Gigabit Ethernet per device. 125 Gbps in each direction. In other words, you can say that interfaces can have abstract methods and variables. This block. The XAUI interface is short, the laser driver to XAUI interface is likely to be custom, and DC-coupling is appropriate. In each table, each row describes a test case. XGMII signaling is based on the HSTL class 1 single-ended I/O standard, which. Physical. As measured from the input port xgmii_txd[63:0] of the transmitter side XGMII (until that data appears on the txdata pins on the internal transceiver interface on the transceiver interface), the latency through the core for the internal XGMII interface configuration in the transmit direction is four clk periods of the core input usrclk. 3 designed for connecting full duplex 10 Gigabit Ethernet (10GbE) ports to each other and to other electronic devices on a printed circuit board (PCB). We kept the speed low to make sure that this would be a non-challenging interface. 1 Power Consumption 11 2. XGMII Mapping to Standard SDR XGMII Data 5. Reference HSTL at 1. NVMe-MI technology provides an industry standard for management of NVMe devices in-band. 13. The IP supports 64-bit wide data path interface only. Front-Light Manager. Designed to meet the USXGMII specification EDCS-1467841 revision 1. 3 are described in terms of two primary interfaces Medium dependent interface (MDI) Media independent interface (MII) While the MDI is visible to the user, and usually tightly specified, the MII is often used simply as a convenient way to partition the physical layer specifications from thedocument, we will use the term “GMII” to cover all of the specification regarding the MII interface. Network Management. 265625 MHz. The XGMII provides full duplex operation at a rate of 10 Gb/s between the MAC and PHY. Xilinx has 10G/25G Ethernet Subsystem IP core. This document provides the technical specification for the Non-Real-Time RAN Intelligent Controller (Non-RT RIC) architecture. Additional info: Design done, FPGA proven, Specification done. 2019年2月12日 閲覧。 ^ “Serial-GMII Specification” (2005年4月27日). 145 400 Gb/s Attachment Unit Interface (400GAUI-n): A physical instantiation of the PMA service interface to extend the connection between 400 Gb/s capable PMAs over n lanes, used for chip-to-chip or chip-to-module interconnections. Transport. Avalon® -MM Interface Signals 6. So to test initially I taken Example design of PCS/PMA IP and there I altered 1) ctl_loopback bit 1-> 0 (not setting in loop back) . Table 1. This version supports HL7 V 2. AUTOSAR Interface. So I don't think there's an easy way to connect 100G and 25G. no other license, express or implied, by estoppel or otherwise, to any other intellectual property rights is granted or intended hereby. This PHY IP core is made available as part of the transceiver functionality of the Intel® FPGAs. 125Gbps for the XAUI interface. 3-2008, defines the 32-bit data and 4-bit wide control character. 3125 Gbps serial line rate with 64B/66B encoding. On the user side a pair of AXI4-Stream (one master and one slave) interfaces are used to send and receive Ethernet frames from/to the user logic. XGMII, as defi ned in IEEE Std 802. 3. Figure 1. What i want to do is i want to feed the PCS with xgmii_tx signals, connect the txn/txp to rxn/rxp respectively and monitor the xgmii_rx signals whether they are the same as xgmii_tx. If you set the value of the Ethernet PCS interface parameter in the CPRI parameter editor to GMII, your IP core includes this interface. version string. 6. On the opposite side a pair of XGMII interfaces are used to transfer frames between the nfmac10g and the PCS/PMA (or XAUI) core. 7. 2 Features The IP core has the following features: • 64-bit XGMII interface (MAC side) • 64-bit gearbox mode (Transceiver side) • Supported for only 64B66B PCS encoding in the transceiver • Converts the gearbox signals to the XGMII signals on the transmit interfaceThe serial gigabit media-independent interface (SGMII) is the interface with the lowest pin count available for connecting compatible MACs and PHYs. This specification, the Devicetree Specification (DTSpec), provides a complete boot program to client program interface definition, combined with minimum system requirements that facilitate the development of a wide variety of systems. The inclusion of a XGMII means that several alternative PHY interfaces are readily supported, including XSBI (10 Gigabit Sixteen Bit Interface) and XAUI. Reference HSTL at 1. 5. 10 Gigabit Attachment Unit Interface (XAUI / ˈ z aʊ i / ZOW-ee) is a standard for extending the XGMII (10 Gigabit Media Independent Interface) between the MAC and PHY layer of 10 Gigabit Ethernet (10GbE) defined in Clause 47 of the IEEE 802. 6 Functional block diagramHow is data transferred from the XAUI to the User interface? A8. 5. semi-formal notation to model SoS architectures with. It can be replaced by a resistor-capacitor combination, both of package size 0603. 10Gb Ethernet Core Designed to the Draft 4. 1. XAUI interoperability is based on the 10-Gigabit Ethernet standard (IEEE Standard 802. Supports 10M, 100M, 1G, 2. Maps packets between XGMII format and PMA service interface format. Figure 1. The host application requests this xml file from the device and creates a register tree. There needs to be some way to allow alternate voltages for this interface and still be standards compliant. Interoperability tested with Dune Networks device. 6. Implements DTE XGXS, PHY XGXS and 10G BASE-X PCS in a single netlist. Features 6. 5G/5G/10Gb Ethernet) PHY. There needs to be some way to allow alternate voltages for this interface and still be standards compliant. Georg Pauwen. ファイバーチャネル・オーバー・イーサネット. 5x faster (modified) 2. 3 Overview (Version 1. This technology is called 10 Gigabit Ethernet Attachment Unit Interface, and is generally. Therefore SOP occurs on 4-byte boundaries rather than 8-byte and local and remote fault encoding is slightly different from XLGMII. The 10GBASE-X PCS provides all services required by the XGMII and in support of the 10GBASE-X PMA, including:The 64b/66b encoder is used to achieve DC balance and sufficient data transitions for clock recovery. 125Gbps 10GBASE-R Clause 49 (IEEE 64B/66B PCS only) o No IEEE. I see three alternatives that would allow us to go forward to > TF ballot. 0 that is designed to support both the device family using the IOD blocks used with GPIO or HSIO buffers. 1. 5G, 5G or 10GE over an IEEE 802. Medium. 2. 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. Both media access control (MAC) and physical coding sublayer/physical medium attachment (PCS/PMA) functions are included. 3z specification. 5/ commas. 3125 Gbps serial line rate with 64B/66B encoding. For the Table 2 in the specification, how does. Status Signals. The XGMII is a low-speed parallel interface for short range (approximately 2”) interconnects. This revision offers architecture diagram of Non-RT RIC, collects requirements on the Non-RT RIC framework, Non-RT RIC logical functions and services of the R1 interface. Optional Management Data Interface (MDIO) interface to manage PCS/PMA registers according to specification IEEE 802. All transmit data and control. Operating Speed and Status Signals. The system data width, that is, the width of the interface to the user logic, is c onfigured as 64 bits. 7. Transceiver Status and Transceiver Clock Status Signals 6. 1 R2. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at 24, 2020 Product Specification Rev1. all of the specification regarding the MII interface. 5 volts per EIA/JESD8-6 and select from the options > within that specification. MAC control. The F-tile 1G/2. xMII: MII – 100Mb/s Medium independent interface GMII. The XAUI 8b10b coding and SERDES. My tests indicate the SOF marker for any received Ethernet frame seems to appear only as byte number 0 or 4 on the output, i. 8V devices whose MDC/MDIO ports can withstand this without blowing a hole in the oxide. The 10GBASE-X PCS provides all services required by the XGMII and in support of the 10GBASE-X PMA, including: xgmii_tx[] Use legacy Ethernet 10G MAC XGMII interface enabled. However there will be no change in the data when presented to the XGMII interface on the receiving end. The present clauses in 802. Inter-Packet Gap Generation and Insertion 4. IEEE 802. 2 Performance 10 2. Features. RGMII to GMII converter provides the interface between a standard gigabit media independent interface (GMII) to RGMII conversion. 5G/5G/10Gb Ethernet) PHY standard devices. 3 10 Gbps Ethernet standard. 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII) interface for connection to a MAC. TX XGMII Mapping to Standard SDR XGMII Interface The 72-bit TX XGMII data bus format is different than the standard SDR XGMII interface. I'm currently reading the IEEE XGMII specification (IEEE Std 802. 3az standard for Energy Efficient Ethernet. The XAUI IP core is designed to the standard specified in clauses 47 and 48 of the 10 Gigabit Ethernet specification IEEE Std. XGMII Interface 10G 32-bit MODE(MAC+ $;, /LWH :UDSSHU SERDES DATA MUX. Implementing the Transceiver PHY Layer in L-Tile/H-Tile 3. The 10GBASE-X PCS provides services to the XGMII in a manner analogous to how the 1000BASE-X PCS provides services to the 1000 Mb/s GMII. 14. The standard XLGMII or CGMII implementation consists of 32 bit wide data bus. 5 Gb/s and 5 Gb/s XGMII operation. mode, all the interface pins of 4 CPs in a cluster can be combined and used together to implement an 8-bit interface required by GMII. Register Map 7. Arria V transceivers and soft PCS solution in a XAUI configuration do not support the XGMII interface to the MAC/RS as defined in IEEE 802. USXGMII specification EDCS-1467841 revision 1. Hi all , I'm using the zcu102 Ultrascale board for XGMII core with using PCS/PMA IP only. 5Gbps Ethernet. /// @dev Note: the ERC-165 identifier for this interface is 0x150b7a02. N GMII Electrical Specification Page 8 IEEE P802. The XgmiiSource drives XGMII traffic into a design. , the received data. PHY register map Original: PDF P1394a P1394a 32-bit 64-bit 1A16 S100 EIA-364-B: 2004 - Not Available. Avalon® Memory-Mapped Interface Signals 6. Includes modules for handling Ethernet frames as well as IP, UDP, and ARP and the components for constructing a complete UDP/IP stack. 4. XGMII Signals 6. 3-2008 standard and provides an interface between AHB/AXI Bus and the 10 Gigabit Media Independent Interface (XGMII) using a powerful 64-bit Scatter Gather DMA. This specification defines USGMII. 25 MHz interface clock. 1 I inserted an editors note under an "Electrical interface" section as a place holder for an interface to be approved by the Task Force. interface is the XGMII that is defined in Clause 46. 1. However, Intel FPGAs do not comply with or support these interface specifications to directly interface with the required twisted-pair copper cables such as CAT-5/6/7. The purpose is to utilize one QuadSGMII serdes to connect multiple SGMII chips, not a single. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at 4. Each direction is independent and contains a 32-bit data path, as well as clock and control signals. USGMII Specification. The signal mapping is compatible with the 64b MAC. Introduction. 5 volts per EIA/JESD8-6 and select from the options > within that specification. XGMII – 10 Gb/s Medium independent interface. Abstract: 88X2040-BAN xGMII to rj45 phy marvell IEEE 946 motherboard Text: packets through the XAUI PCS soft IP and the LatticeECP3 XAUI PCS to the Marvell 88X2040 device. // Documentation Portal . 2. 3ae-2002 standard. 2 specification supports up to 256 channels per link. 3-2008 specification requires each 10GBASE-R link to support a 10 Gbps data rate at the XGMII interface and a 10. Reconciliation Sublayer (RS) and XGMII. Gigabit Ethernet. If is test the pcs/pma with 'pcs_loopback = 1' , everything works fine. . 1. Small Form-factor Pluggable connected to a pair of fiber-optic cables. XGMII Signals 6. 25MHz for direct interface to 10GBase-R, XAUI and RXUAI cores. 3-2008 clause 48 State Machines. The XCM . Both Channel 0 & 1 PHY are UP with the rx_is_lockedtodata and rx_enh_blk_lock signals are high. The name is a concatenation of the Roman numeral X, meaning ten, and the initials of. The PCS IP is engineered to be quickly and easily integrated into any SoC, and to connect seamlessly to a Cadence or third-party MAC through a demultiplexed XGMII (64-bit data, 8-bit control, single clock-edge interface). 3 layer diagram 100Mb/s and above RS. 3 is silent in this respect for 2. USGMII provides flexibility to add new features while maintaining backward compatibility. XGMII Encapsulation 4. Signal. This guide and its associated documents provide recommendations on the use of the _DSD (Device Specific Data) object as defined in the ACPI Specification . 1. 75 Gbps raw data trans-mission capacity. 2 Scope : This document describes messages transmitted. A DLLP packet starts with an SDP (Start of DLLP Packet -. Release Information 2. XGMII stands for X (roman 10)- G-M edia- I ndependant- I nterface which is IEEE 802. The BCM84885 is a highly integrated solution combining digital adaptive equalizers, ADCs, phase-locked loops, line drivers, encoders, decoders, echo cancelers, crosstalk cancelers, and all required support circuitry. SerDes TX RX MII SerialThis solution is designed to the IEEE 802. We just have to enable FLOW CONTROL on our MAC side. > > 1. 4. You are required to use an external PHY device to. 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. 8V devices whose MDC/MDIO ports can withstand this without blowing a hole in the oxide. Same thing applies to TXC. 4 11/18 Microsemi Headquarters One Enterprise, Aliso Viejo, CA 92656 USA Within the USA: +1 (800) 713-4113 Outside the USA: +1 (949) 380-610010Gb Ethernet Core Designed to the Draft 4. Check Link Fault status signal, value 01 (Local Fault). What i want to do is i want to feed the PCS with xgmii_tx signals, connect the txn/txp to rxn/rxp respectively and monitor the xgmii_rx signals whether they are the same as xgmii_tx. VMDS-10298.