RE: XGMII New electrical Characteristics
Rich,
You are right. The vote was taken for source centered and
approved. My answer was not "official" 802.3ae response, but was for a
fellow implimentor. I saw too many people not agreeing, and some of
those will cast technical_required_change NO votes in the future. And
as for the past voltage level example of XGMII, it may change again if
too many people disagree. I should have explained this in my prior e-mail.
From my point of view, I would prefer source centered, because
it allows back-to-back XGMII. But as long as we are in early adopter
market, we will have to endure these uncertainties
regards,
Yong.
-----Original Message-----
From: Rich Taborek [SMTP:rtaborek@xxxxxxxxxxxxx]
Sent: Monday, November 13, 2000 12:14 PM
To: HSSG; Jeff Warren
Subject: Re: XGMII New ElectricalI Characteristics
Yongbum,
I thought the XGMII clocking issue was settled by motion to revert back
to Source Centered timing as described in P802.3ae draft 1.0. I
understand that there still may be debate, but if settled by motion, it
would take 75% to change what will be written into D2.0. I don't have
the actual motion, so could someone (Jeff Warren?) please settle this
issue.
Best Regards,
Rich
--
Yongbum Kim wrote:
>
> The group formally voted for HSTL 1.5V for XGMII Class 1 and suitably
> compatible low-voltage (but not *decided* as HSTL class 1) MDIO. The
> Source Simultaneous versus Source Centered timing is still under debate,
> but it is still written as source centered timing.
>
> Yong.
> ======================================================
> Yongbum "Yong" Kim (408)570-0888 x141
> Chief Technical Officer (408)570-0880 fax
> Allayer Communications ybkim@xxxxxxxxxxx
> 107 Bonaventura Drive http://www.allayer.com
> San Jose, CA 95134
> ==This Message is forwarded by RoX Switch at 1 Gb/s.==
>
> -----Original Message-----
> From: James Colin [SMTP:james_colin_j@xxxxxxxxx]
> Sent: Monday, November 13, 2000 5:05 AM
> To: stds-802-3-hssg@xxxxxxxx
> Cc: James_Colin_J@xxxxxxxxx
> Subject: XGMII New Electrical Characteristics
>
> Hello There,
> Can someone update me in regards to XGMII electrical
> characteristics? Did it went back to SSTL_2 levels or
> HSTL 1.5v or anything else?
>
> Thanks,
> James
-------------------------------------------------------
Richard Taborek Sr. Phone: 408-845-6102
Chief Technology Officer Cell: 408-832-3957
nSerial Corporation Fax: 408-845-6114
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