Serial Gigabit Media Independent Interface
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The Serial Gigabit Media Independent Interface (SGMII) is a sequel of MII, a standard interface used to connect an Ethernet MAC-block to a PHY. It is used for Gigabit Ethernet (contrary to Ethernet 10/100 for MII). It differs from GMII by its low-power and low pin count serial interface (commonly referred to as a SerDes). To carry frame data and link rate information between a 10/100/1000 PHY and an Ethernet MAC, SGMII uses a differential pair for data signals and for clocking signals, with both being present in each direction (i.e., transmit and receive), giving 8 signal lines in total.
[edit] See also
- MII Media Independent Interface, the original standard for Ethernet 10/100
- GMII Gigabit Media Independent Interface, the original standard for Ethernet Gigabit
- RGMII Reduced Gigabit Media Independent Interface
- Gigabit Ethernet
- Media Access Control MAC
[edit] References :
- Serial-GMII Specification Revision 1.7 (ENG-46158)
- CEVA implementation documentation
- Altera-compatible components using SGMII, distributed by MorethanIP.com
- Xilinx GMII to SGMII bridge IP Core
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