LayerscapeのトピックRe: LS1046A 2.5G SGMII

LS1046A 2.5G SGMII

ddnxpcom — Mon, 03 Nov 2025 19:25:17 GMT

Hi,

Is the 2.5G SGMII MAC interface on the LS1046A an OC-SGMII interface. I am trying to determine if 2500Base-X is the correct medium for this MAC interface.

On the LS1046A reference deisgn board the 2.5G SGMII link is connected to an AQR113 part from Marvell. However, the AQR113 datasheet does not mention 2.5G SGMII, so I am trying to understand how this works?

Re: LS1046A 2.5G SGMII

Oswalag — Mon, 03 Nov 2025 21:31:25 GMT

Hello,

The LS1046A MAC interface uses 2.5G SGMII, not 2500Base-X.

Re: LS1046A 2.5G SGMII

ddnxpcom — Mon, 03 Nov 2025 21:46:33 GMT

I do agree with your statement, but how does it work with the AQR113 part from Marvell?

Re: LS1046A 2.5G SGMII

Oswalag — Mon, 17 Nov 2025 15:30:52 GMT

Hello,

It is because the AQR113 from MARVELL is compatible with 2.5GBASE-T

Re: LS1046A 2.5G SGMII

ddnxpcom — Tue, 02 Dec 2025 18:56:10 GMT

Hi,

So the connection between the LS1046A and the ARQ113 on the LS1046A reference design board is XFI, and not SGMII 2.5G, or is it both capable?

Re: LS1046A 2.5G SGMII

Oswalag — Mon, 08 Dec 2025 20:52:19 GMT

It is both capable. Please refer to the link below:

https://community.nxp.com/t5/Layerscape/LS2088A-SerDes-XFI-amp-2-5G-Query/m-p/1607421