Forum Discussion

Fdominguez's avatar
Fdominguez
Icon for New Contributor rankNew Contributor
3 years ago

Agilex SGMII bridge on E-Tile

Target: Agilex Tools version: Quartus Pro 21.3 We are trying to implement this diagram found in the “Embedded Peripherals IP User Guide” to convert a HPS EMAC to SGMII interface coming from the ...
Ash_R_Intel's avatar
Ash_R_Intel
Icon for Regular Contributor rankRegular Contributor
3 years ago

I am saying that 1 Gbps is not possible to implement in E-Tile as the hard blocks do not support.

E-tile is capable of implementing either 10G / 25G or 100G logic. See the architecture diagram in the link sent previously. It is self-explanatory.


Regards


alexforencich's avatar
alexforencich
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

The document you linked says that the transceivers on the E-tile support NRZ all the way down to 1 Gbps, no? SGMII is 1.25 Gbps, so it seems like it should be possible to use PMA direct mode to implement SGMII. Obviously the MAC and PCS logic would have to be bypassed, and the SGMII PCS and gigabit MAC implemented in fabric logic, but I don't see any reason why this wouldn't be possible with the E-tile transceivers.

https://www.intel.com/content/www/us/en/docs/programmable/683723/current/supported-features.html