This design implementation uses the nios ii processor to run the embetter tcpip protocol suite software. Media independent interface mii for 10100 mbs and gigabit media independent interface gmii connectivity miigmii hardware io setup for xilinx spartan 6 family fpgas. What links here related changes upload file special pages permanent link page information wikidata item cite this page. There may be many popular meanings for gmii with the most popular definition being that of gigabit media independent interface. Mii media independent interface is about the connectivity between mac and phy. Data and delimiters are synchronous to clock references. The xenpak module is used on line cards to do the data transport within a few meters up to 40km.
Rgmii is defined as reduced gigabit media independent interface somewhat frequently. Physicalside interface phy mode to connect to an ex ternal phy through gigabit media independent interfacemedia independent interface gmiimii. The reduced gigabit media independent interface rgmii module provides an rgmii interface to an existing ethernet mac design with a gmii or tbi interface, for example the gigabit ethernet mac gem available from cadence design foundry. Textbased user interface this method relies primarily on the keyboard. Serial gigabit media independent interface the lvds ios in the intel stratix 10, intel arria 10, stratix v, stratix iv, stratix iii, arria v, arria ii gx fast speed grade, intel cyclone 10 gx and lp fpgas allow you to easily implement the serial gigabit media independent interface sgmii for 10100 mb or gigabit ethernet. Corermii is responsible for providing the interface between a standard media independent interface mii to rmii conversion. Reduced media independent interface rmii as specified in the rmii specification. Media independent interface control document page 2 21 july 1987 1. Reduced gigabit media independent interface rgmii is a standard interface, which helps in reducing the number of signals required to connect a phy to a mac. The final output of this study program is an interface control document icd for a media independent interface which is a separate document. The media independent interface mii was originally defined as a standard interface used to connect a fast ethernet i. It is often used in contrast with mdix or mdix, which is similar to mdi, but switches the transmit and receive pins within the interface. Base x physical coding sublayer pcs and physical medium. Media in category gigabit interface converter the following 6 files are in this category, out of 6 total.
F connect a network cable to the network interface panel. Gigabit media independent interface gmii is an interface between the media access control mac device and the physical layer. Modified description of idelay in reduced gigabit media independent interface rgmii. The rgmii interface has been designed in accordance with the standards and specifications agreed in the. Sgmii serial gigabit media independent interface spd speed select spi serial peripheral interface sram static random access memory srio serial rapid inputoutput sw software tdlte 8 time division longterm evolution 8 trx transceiver vswr voltage standing wave ratio uart universal asynchronous receivertransmitter ue user equipment. The industry standards were generated at different times and have differing applications.
Designing rgmii interface with fpga and hardcopy devices introduction the reduced gigabit media independent interface rgmii is an alternative to the ieee 802. A physical connection that incorporates the clock line mdc and the data line mdio. Designing rgmii interface with fpga and hardcopy devices. The reduced gigabit media independent interface rgmii has become a widely used alternative to the gigabit media independent interface gmii by offering lower pin count which enables board space, and cost, savings. It provides independent 8bit wide transmit and receive data paths. Each port configured and monitored through independent a serial mdio interface, which can optionally be omitted from the core.
Set of mii sideband signals used for accessing the phy registers. Media independent interface final report ms 225250 sperry space systems p. This application note describes how to design a reduced gigabit media independent interface. The mii design has been extended to support reduced signals and increased speeds. This sgmii solution meets the sgmii specification and saves cost and power in systems that have low to high portcount gigabit ethernet per device. Introduction core overview reduced gigabit media independent interface rgmii is a standard interface, which helps in reducing the number of signals required to connect a phy to a mac. Each port configured and monitored through independent a serial mdio.
The ksz9031nx reduces board cost and simplifies r board layout by using onchip termination resistors for the. Xilinx ug194 virtex5 fpga embedded trimode ethernet. Medium dependent interface mdi refers to an ethernet port connection that is used to connect network devices hubs and switches with other hubs and switches without the use of a crossover cable or null modem. Wan phy mode is supported on mx240, mx480, mx960, t640, t1600,t4000, and ptx series packet transport routers routers only. Ethernet datasheet qad sera gat meda indeendent interace. Thus any mac may be used with any phy, independent of the network signal transmission media. The ksz9031rnx provides the reduced gigabit media independent interface rgmii for direct connection to rgmii macs in gigabit ethernet processors and switches for data transfer at 10100mbps. To further reduce pcb trace complexity, the rtl8211n8212n also provides an innovative 2.
The mediaindependent interface mii was originally defined as a standard interface to connect. Industrial ethernet phy single phy assp user manual. In order to accomplish this objective, the data paths and all associated control signals. The rmii specification reduces the data interfaces from 4bitnibble data to 2bitdibitdata. For routers supporting the 10gigabit ethernet interface, configure the framing format. The ksz9031mnx reduces board cost and simplifies board layout by. How is reduced gigabit media independent interface abbreviated. Mdi is a type of ethernet port found on network devices. It contains a list of interfaces to databases via an odbtp server. Xilinx ug194 virtex5 fpga embedded trimode ethernet mac. Reduced gigabit media independent interface rgmii technical. Being media independent means that different types of phy devices for connecting to different media can be used without redesigning or replacing the mac hardware. Both dual transceivers can simultaneously communicate with the mac through the same rsgmii interface.
Timing for this interface will be such that the clock and data are generated simultaneously by the. The mac uses less than 2,600 logic elements les and four m4k memory blocks in an ep2c20 device. Media independent interface ethernet reference design. This interface uses standards current in the industry. Being media independent means that different types of phy devices for connecting to different media i. Typically capable of more powerful tasks the main disadvantages of a textbased user interface are. Gmii is an acronym that can contain many meanings which are listed below. The rgmii standard achieves this by reducing parallel data bus width and through double data rate ddr. A specific protocol that operates across the physical connection mentioned earlier, which allows an external controller to communicate with one or more ksz9031mnx devices. The interface operates at speeds up to mbits, implemented using a data interface clocked at 125 mhz with separate eightbit data paths for receive and transmit, and is.
The requirements described in this specification only apply to hdcp professional repeaters. As shown in figure3, the gmii interface connects the phy and ps gem through the emio pins. Serial gigabit media independent interface computing st. Gigabit media independent interface listed as gmii. The pcs is responsible for encoding each octet passed down from the gmii into ten bit code groups. This specification is designed for the professional av industry and enables the support of relaxed topology limits within an hdcp system.
Corergmii is responsible for providing the interface between a standard gigabit media independent interface gmii to rgmii conversion. Serial gigabit media independent interface how is serial. Current variants are reduced media independent interface, gigabit media independent interface, reduced gigabit media independent. Mdi media dependent interface is about the connectivity between phy and connectorjackrj45. The pin count reduction is achieved by clocking data on both the rising and falling edges of the clock, and by multiplexing control signals. The cadence qsgmii ip provides the logic required to integrate a quad serial gigabit media independent interface with qsgmiimodified pcs functionality into any system on chip soc. You must use a category 5 shielded twistedpair cable to connect the network interface panel to prevent malfunction. Hdcp interface independent adaptation specification may 12, 2017 revision 2. This has lead to a convoluted and poorly defined set of interface. The network cable is not supplied with the product. Mii rmii 10100 ethernet transceiver with hp automdix. The ksz9031mnx reduces board cost and simplifies board layout by using onchip termination resistors for the.
Application examples are given in pdf format on the microchip lan8187 web site. The gem0 block is enabled while generating the hardware system in the vivado tools. The main advantages of a textbased user interface are. Configures the phy autonegotiation to use fullduplex modes only. Designing rgmii interfaces with fpgas and hardcopy asics january 2010 altera corporation system timing figure 2 shows the edgealigned. Gigabit media independent interface how is gigabit media independent interface abbreviated. Page 1 of 8 reduced gigabit media independent interface rgmii 12102000 version 1. The gmii to rgmii solution delivers files to several file groups. This report will provide explanations and rationale for the content of the icd itself.
These devices have builtin serializerdeserializer serdes circuitry that supports highspeed. In other words, it is about txd and rxd signals from mac to phy. Reduced gigabit media independent interface rgmii 12102000 version 1. Rgmii stands for reduced gigabit media independent interface. An1405dp83848 single 10100 mbs ethernet transceiver.
The logicore quad serial gigabit media independent interface qsgmii core provides a flexible solution for combining four serial gigabit media independent interfaces sgmii into one 5 gigabits per second gbs interface, to significantly reduce the number of inputs outputs ios. The pcs and the gigabit media independent interface gmii communicate with one another via 8bit parallel data lines and several control lines. The mii to rmii logicore is a shim core which converts a traditional 16pin media independent interface mii on a xilinx 10100 ethernet mac core to a a 6pin reduced media independent interface rmii interface, allowing the mac to connect to rmii compliant phys. Gigabit media independent interface how is gigabit media. In addition control is reduced to 3 signals one of which is optional and one clock. Gmii to rgmii ip can be used to provide an rgmii interface using the pl. Basic media independent interface management miim interface support that. The mediaindependent interface was originally defined as a standard interface to connect a fast ethernet media access control block to a phy chip. Reduced gigabit media independent interface rgmii version 1. You cannot use a network cable at the same time as a usb connection. Gigabit media independent interface media independent interface for connection to gmiimii macs in gigabit ethernet processors and switches for data transfer at mbps or 10100mbps. Please read these documents for further information.
The serdes circuitry is configured to support source synchronous and asynchronous serial data communication for the sgmii interface at 1. Use the same covers and screws that you removed in step 2. The mediaindependent interface mii was originally defined as a standard interface to connect a fast ethernet i. Qad sera gat meda indeendent interace qsgmii ip overview cadence ip factory delivers custom, synthesizable ip to support specific design requirements. The mac uses the mediaindependent interface mii or rmii to communicate with an external phy. Each interface is uniquely named, and specifies the values of one or more parameters that determine how to connect to a database. Corergmii is responsible for providing the interface between a. To start webbased epsonnet config, enter the ip address for this panel in the address bar of a web browser. Webbased epsonnet config cannot be used if the ip address has not been set in the network interface. An interface file is a file used by odblogininterface to facilitate the establishment of a connection to a database. The gigabit media independent interface gmii is an interface between the medium access control mac device and the physical layer. Gigabit media independent interface gmii is an interface between the media access control mac device and the physical layer phy.
The xelic 10gb media independent interface xgmii to 10gbaser pcs core xci2px performs mapping of xgmii signals into 66bit pcs blocks and viceversa using a 64b66b coding scheme. Added description of fixedmode idelays to gigabit media independent interface gmii. The interface to the xenpak is based on xaui, common to each type of xenpak. Ps and plbased 1g10g ethernet solution application note. Rmii provides a lower pin count alternative to the ieee 802.
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