RocketIO success?

Truth in posting:

>Path: path!border1.nntp.dca.giganews.com!nntp.giganews.com!news.glorb.com!postnews.google.com!not-for-mail
>From: zhiman@hotmail.com (Zhi)
>Newsgroups: comp.arch.fpga
>Subject: Re: RocketIO success?
>Date: 29 Nov 2004 11:19:02 -0800
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>References: <cnl7em$9q3$1@hood.uits.indiana.edu>
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nslookup 66.35.226.228
Name:    ip66-35-226-228.altera.com
Address:  66.35.226.228

>Paul Smith <ptsmith@nospam.indiana.edu> wrote in message news:<cnl7em$9q3$1@hood.uits.indiana.edu>...
>> I'm considering the V2pro series for several projects.

V2PRO High Speed serial is called RocketIO. I have a tee shirt to prove it.
Maximum baud is 3.125 GBaud. This is what the original poster is asking about.

V2PRO-X High Speed serial is called RocketIO.
Maximum baud is 10.3125 GBaud.

Virtex 4 High Speed serial is called RocketIO.
Maximum baud is 11.1 GBaud.

On 29 Nov 2004 11:19:02 -0800, zhiman@hotmail.com (Zhi) wrote:
>Hi,
>
>Although I don't dispute some of the success stories of RocketIO, I
>would like to point out of the following:
>
>1. The reference clock requirement for RocketIO is very tight
>(=expensive). Xilinx has been recommending an oscillator from EPSON
>with very low jitter.
>
>2. If your application is less than or equal to 6.5Gb/s, do not use
>RocketIO. You will be paying a premium for a 10Gb/s transceiver.
>Altera and Lattice have better alternatives.

Which is wrong. The OP asked about V2PRO, max rate is 3.125 GBaud.

When comparing features, make sure you evaluate what IP is included
in one vendor's SerDes, which other vendors require you to use
logic resources to achieve.

>3. Lastly, just to make it clear:
>V2Pro uses an "old" transceiver, which has poor performance with
>jitter tolerance and transfer, although it has very good jitter
>generation
>V2ProX uses RocketIO

Not according to Xilinx.

>10Gb/s technology for backplanes is here, but there are a lot of
>challenges. One must utilize new backplane (PCB) material, new
>connectors, new test/measurement equipment, and be extermely careful
>with the board design since every little discontinuity will contribute
>to eye closure. Obviously reference backplanes/boards for 10Gb/s exist
>today, but the question is whether they are feasible and
>cost-effective for production.

None of which is relevant, given the OP's question.

>Just my two cents,
>Zhi

I wouldn't give you one cent.


Philip Freidin,

Particpant in the definition, design, and verification of 3 generations
of RocketIO (and all round good guy consultant).



Philip Freidin
Fliptronics

!!!!!!!?????

Yet another clandestine altera.com posting?

Who can we trust?

In all fairness, what the poster did is against Altera company policy, 
and he (or she) if caught, will be in 'big trouble' (this from a private 
communication to me from an Altera VP).

I would prefer real customer questions and concerns in this forum, as I 
know would all of you.

Austin

----snip----


>>Message-ID: <ce9c6dd6.0411291119.6cff39c0@posting.google.com>
>>References: <cnl7em$9q3$1@hood.uits.indiana.edu>
>>NNTP-Posting-Host: 66.35.226.228         <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>>Content-Type: text/plain; charset=ISO-8859-1
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>>X-Trace: posting.google.com 1101755942 24698 127.0.0.1 (29 Nov 2004 19:19:02 GMT)
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>>NNTP-Posting-Date: Mon, 29 Nov 2004 19:19:02 +0000 (UTC)
>>Xref: newsmst01a.news.prodigy.com comp.arch.fpga:78930
> 
> 
> 
> nslookup 66.35.226.228
> Name:    ip66-35-226-228.altera.com
> Address:  66.35.226.228

-----endsnip----

"Philip Freidin" <philip@fliptronics.com> wrote in message
news:6ecoq0dbu5066rjf2c9fumh4q2q7v5cegt@4ax.com...
> Truth in posting:
>
> >Path:
path!border1.nntp.dca.giganews.com!nntp.giganews.com!news.glorb.com!postnews
.google.com!not-for-mail
> >From: zhiman@hotmail.com (Zhi)
> >Newsgroups: comp.arch.fpga
> >Subject: Re: RocketIO success?
> >Date: 29 Nov 2004 11:19:02 -0800
> >Organization: http://groups.google.com
> >Lines: 46
> >Message-ID: <ce9c6dd6.0411291119.6cff39c0@posting.google.com>
> >References: <cnl7em$9q3$1@hood.uits.indiana.edu>
> >NNTP-Posting-Host: 66.35.226.228
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19:19:02 GMT)
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> >NNTP-Posting-Date: Mon, 29 Nov 2004 19:19:02 +0000 (UTC)
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>
>
> nslookup 66.35.226.228
> Name:    ip66-35-226-228.altera.com
> Address:  66.35.226.228
>
> >Paul Smith <ptsmith@nospam.indiana.edu> wrote in message
news:<cnl7em$9q3$1@hood.uits.indiana.edu>...
> >> I'm considering the V2pro series for several projects.

LOL

I posted once earlier about Altera (as company) being at Electronica 2004 in
Munich - in true belive that it was so, as when I was at that booth
(Altera!) I asked "you are from Altera?" YES
"From Altera directly, not representing them?" YES

ang guess what? after the fair I looked at the business card that guy gave
me: "Altera, represented by somecompany" !!?

now someone posting under bogus name from Altera corp machine to the
newsgroup, gosh what a world!

Antti