RE: XGMII or SPI-4 ?

["Stefan M. Wurster" <stefan@xxxxxxxx>]

Hello WenDeh,

 

it would have to be SPI4-2 for 650MHz. I agree with your confusion and I have not seen any customers being very decisive about it. The HSTL interface for the XGMII is much simpler to implement, but I think the SPI4-2 is a more elegant solution. The selection of capable implementors is less than for the slower version.

 

Regards,

Stefan Wurster

Stefan M. Wurster
Director, Engineering
TDK-Semiconductor
465 Fairchild Drive, Suite 130
Mountain View, CA 94043
Voice: 650-988-4812
FAX:   650-988-0582

-----Original Message-----
From: owner-stds-802-3-hssg@xxxxxxxx [mailto:owner-stds-802-3-hssg@xxxxxxxx]On Behalf Of Wang Wendeh
Sent: Wednesday, May 09, 2001 13:55
To: stds-802-3-hssg@xxxxxxxx
Subject: XGMII or SPI-4 ?

Hi all,

 

Maybe this thread has been discussed before, but I just added in this mailing list for a few days.

Can anyone tell me which one ( XGMII or SPI-4) will be adopted for implementation between

link-layer and physical-layer device? The 10G standard proposes XGMII, while it seems to be that

vendors favor SPI-4, right? Or maybe this two interfaces can co-exist ??

 

Thanks a lot!

 

WenDeh