Nios® II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.

External and Internal TBI PHY

Honored Contributor II


I want to configure my Ethernet controller in sgmii mode(rgmii is working).As sgmii requires configuring TBI PHY and also external Marvell PHY and also Ethernet controller.Can you please guide me in what sequence I will configure these three components.1st I will configure external PHY or TBI PHY? 


0 Kudos
1 Reply
Honored Contributor II

SGMII mode will either require a transceiver or an LVDS channel on your FPGA (depending on what FPGA you have). I assume by TBI PHY you mean the LVDS interface? Is there a reason you want to use SGMII if you already have RGMII working? If you have RGMII working, why not just stick with it? Most externals PHYs will allow you to configure multiple MAC interfaces, you just have to do it on via the bootstrap interface, or reconfigure it over the MDIO interface.