Is SGMII SerDes?
Is SGMII SerDes?
SGMII, which was defined by Cisco, utilizes two pairs of SERDES / LVDS differential buses to carry transmit and receive data at 1.25 Gbps. A differential receive clock is also defined but is optional and typically not used. Instead, the receive clock is recovered from the data on the differential pair.
What is SGMII?
The serial gigabit media-independent interface (SGMII) is the interface with the lowest pin count available for connecting compatible MACs and PHYs. It consists of pairs of Txdata, Rxdata, and Rx Ref Clk data pins.
What is difference between Rgmii and Sgmii?
The pin count for all three interfaces are different. GMII and RGMII operate at 125 megahertz and SGMII operates at 625 megahertz. The important difference between RGMII and GMII is the pin count. Although RGMII has half the pins of GMII, it can still operate at gigabit speeds using the same clock frequency.
What is SerDes interface?
The term “SerDes” generically refers to interfaces used in various technologies and applications. The primary use of a SerDes is to provide data transmission over a single line or a differential pair in order to minimize the number of I/O pins and interconnects.
What is the difference between Sgmii and Rgmii?
What is a gigabit port?
Gigabit Ethernet switches are a type of network switch that supports Gigabit Ethernet speeds (1 Gbps) per connected device on a local area network (LAN). These switches typically come with four to eight ports for consumer use, while enterprise switches can handle many more connections.
What is the difference between MII and RMII?
RMII requires a 50 MHz clock where MII requires a 25 MHz clock and data is clocked out two bits at a time vs 4 bits at a time for MII or 1 bit at a time for SNI (10 Mbit/s only).
Where are SerDes used?
Most SerDes devices are capable of full-duplex operation, meaning that data conversion can take place in both directions simultaneously. SerDes chips are used in Gigabit Ethernet systems, wireless network routers, fiber optic communications systems, and storage applications.
What is the difference between SerDes & SGMII & 1000BASE-X?
Can someone help clarify the difference between SERDES, SGMII & 1000BASE-X? SERDES : Serializer DESerializer, used to convert from serial <==> parallel. SGMII: Serial Gigabit Media Independent Interface, it is used to interface the MAC layer of the Ethernet to the PHY layer.
What is SGMII in Gigabit Ethernet?
In gigabit ethernet it’s the SGMII – Serial Gigabit Media Independent Interface. So your Ethernet chip would connect to a 1000Base-X PHY using SGMII. It could instead connect to a 1000Base-T PHY device using the same SGMII interface. There are PHYs with RGMII, SGMII and MDI. In these case RGMII connect to MAC.
What is the difference between RGMII SGMII and MDI?
There are PHYs with RGMII, SGMII and MDI. In these case RGMII connect to MAC. SGMII connect to a media module, such as SFP module which can be fiber or copper. MDI as usual for Copper Transformer interface.
What is a 1000 base X?
1000BASE-X : Optical fiber channel that meets GigaBit Ethernet protocol requirments. Not open for further replies.
