[ibis-macro] Re: latest version of clock forwarding BIRD

  • From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
  • To: 'IBIS-ATM' <ibis-macro@xxxxxxxxxxxxx>
  • Date: Tue, 17 Mar 2020 23:19:14 +0000

Walter,

Regarding "such a DQ model will require a DQS waveform input",
if I understood Fangyi's original proposal correctly, that's exactly
what he described...

Thanks,

Arpad
===================================================

From: Walter Katz [mailto:wkatz@xxxxxxxxxx]
Sent: Tuesday, March 17, 2020 5:58 PM
To: Muranyi, Arpad <Arpad_Muranyi@xxxxxxxxxx>; 'IBIS-ATM' 
<ibis-macro@xxxxxxxxxxxxx>
Subject: RE: latest version of clock forwarding BIRD

Arpad,

That means that such a DQ model will require a DQS waveform input, and will not 
function in the current mode of letting the Rx choose the best sample location.

Walter

Walter Katz
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>
Office 978.461-0449 x 133
Mobile  720.417-3762
[cid:image001.jpg@01D5FC88.2DBE84B0]

From: Muranyi, Arpad <Arpad_Muranyi@xxxxxxxxxx<mailto:Arpad_Muranyi@xxxxxxxxxx>>
Sent: Tuesday, March 17, 2020 5:45 PM
To: dmarc-noreply@xxxxxxxxxxxxx<mailto:dmarc-noreply@xxxxxxxxxxxxx>; 
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>; 'IBIS-ATM' 
<ibis-macro@xxxxxxxxxxxxx<mailto:ibis-macro@xxxxxxxxxxxxx>>
Subject: RE: latest version of clock forwarding BIRD

As far as I remember, we decided that they are not mutually exclusive,
i.e. they CAN coexist, but I don't think we said that they MUST coexist...

See slides 5 and 8 in 
http://ibis.org/macromodel_wip/archive/20200204/fangyirao/Modeling%20DDR%20Clock%20Forwarding%20With%20a%20New%20AMI%20GetWave/IBIS_ATM_new_GetWave.pdf:

[cid:image006.png@01D5FC88.8EC98160]

[cid:image007.png@01D5FC88.8EC98160]

Thanks,

Arpad
========================================================

From: ibis-macro-bounce@xxxxxxxxxxxxx<mailto:ibis-macro-bounce@xxxxxxxxxxxxx> 
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Fangyi Rao
Sent: Tuesday, March 17, 2020 4:22 PM
To: wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>; 'IBIS-ATM' 
<ibis-macro@xxxxxxxxxxxxx<mailto:ibis-macro@xxxxxxxxxxxxx>>
Subject: [ibis-macro] Re: latest version of clock forwarding BIRD

No. We never made that decision.

Fangyi

From: ibis-macro-bounce@xxxxxxxxxxxxx<mailto:ibis-macro-bounce@xxxxxxxxxxxxx> 
<ibis-macro-bounce@xxxxxxxxxxxxx<mailto:ibis-macro-bounce@xxxxxxxxxxxxx>> On 
Behalf Of Walter Katz
Sent: Tuesday, March 17, 2020 2:19 PM
To: 'IBIS-ATM' <ibis-macro@xxxxxxxxxxxxx<mailto:ibis-macro@xxxxxxxxxxxxx>>
Subject: [ibis-macro] Re: latest version of clock forwarding BIRD


[EXTERNAL]
Fangyi,

I thought we decided that if GetWave2_Exists Is true then GetWave_Exists must 
also be true.

Walter

Walter Katz
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>
Office 978.461-0449 x 133
Mobile  720.417-3762
[cid:image001.jpg@01D5FC88.2DBE84B0]

From: ibis-macro-bounce@xxxxxxxxxxxxx<mailto:ibis-macro-bounce@xxxxxxxxxxxxx> 
<ibis-macro-bounce@xxxxxxxxxxxxx<mailto:ibis-macro-bounce@xxxxxxxxxxxxx>> On 
Behalf Of Fangyi Rao (Redacted sender "fangyi_rao" for DMARC)
Sent: Tuesday, March 17, 2020 3:34 PM
To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx<mailto:ibis-macro@xxxxxxxxxxxxx>>
Subject: [ibis-macro] latest version of clock forwarding BIRD

Hi All,

Please find in the attachment the latest version of the clock forwarding BIRD 
with updates discussed at today's ATM.

Steve (Parker): please upload it to the ATM website.

Thanks,
Fangyi

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