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Chapter 3: Generating and Customizing the Core

Select Standard

Select from the following standards for the core:

1000BASE-X. 1000BASE-X Physical Coding Sublayer (PCS) functionality is designed to the IEEE 802.3 specification. Depending on the choice of physical interface, the functionality may be extended to include the 1000BASE-X Physical Medium Attachment (PMA) sublayer. Default setting.

SGMII. Provides the functionality to provide a Gigabit Media Independent Interface (GMII) to Serial-GMII (SGMII) bridge, as defined in the Serial-GMII Specification (Cisco Systems, ENG-46158). SGMII may be used to replace GMII at a much lower pin count and for this reason often favored by PCB designers.

Both (a combination of 1000BASE-X and SGMII). Combining the 1000BASE-X and SGMII standards lets you dynamically configure the core to switch between 1000BASE-X and SGMII standards. The core can be switched by writing through the MDIO Management Interface. For more information, see Chapter 9, “Configuration and Status.”

Core Functionality

Figure 3-2displays the Ethernet 1000BASE-X PCS/PMA or SGMII functionality screen.

Figure 3-2:1000BASE-X Standard Options Screen

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Ethernet 1000BASE-X PCS/PMA or SGMII v9.1

 

 

UG155 March 24, 2008

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Xilinx 1000BASE-X manual Select Standard, Core Functionality, Generating and Customizing the Core