TSE IP - Cyclone 10GX SGMII Interface with External PHY

Hi Daniel,

The difference between SGMII MAC mode & SGMII PHY mode is,

when SGMII MAC mode is enable, TSE IP will ignore the value in dev_ability register and automatically sets the value to 16’h4001 whereas in SGMII PHY mode you can set the dev_ability register value.

Kindly look into TSE IP user guide page 102 for more details.

As you said that the observed speed is 1G in the PCS control register, but link speed on the external PHY indicates the speed is 100M. Have you checked the PCS Control register bit 6 and 13(speed_selection). It has to be set to 10 in order to set the speed to 1G. Refer to page 99 for more detail on PCS control register bit.

Kindly do let me know if it helps.

Regards,

Pavee