New wave forms for SPI-3 Fig 44 & 45

Walter Bridgewater wally at eng.adaptec.com
Wed Jun 2 19:11:11 PDT 1999


* From the T10 Reflector (t10 at symbios.com), posted by:
* wally at eng.adaptec.com (Walter Bridgewater)
*

Alan,

100mV is the minmum signal level, it could start from 400mV.
Also, you need to adjust this levels to include your receiver
offset.

I hope the aztec addressing works


Wally



> 
> * From the T10 Reflector (t10 at symbios.com), posted by:
> * Alan Littlewood <alanl at lsil.com>
> *
> While we are on the subject of the receiver input waveform that Bill Ham was
> sketching at the Colorado meeting, I would like confirmation that my
> understanding of the sketch was correct.
> 
> The signal swinging through +100 mV and -100 mV is the differential voltage.
>  (-Signal -  +Signal).  Correct?
> If not please clarify.
> 
> Thanks,
> Alan.
> 
> 
> 
> 
> 
> Gene_Milligan at notes.seagate.com wrote:
> 
> > * From the T10 Reflector (t10 at symbios.com), posted by:
> > * Gene_Milligan at notes.seagate.com
> > *
> > Yes I agree with you if that is the conclusion the others reach unless
> > someone is prepared to work on any related impacts to the transmitter
> > specifications.
> >
> > Gene
> >
> > Wally Bridgewater <wally at eng.adaptec.com> on 06/02/99 04:25:22 PM
> >
> > To:   Gene Milligan
> > cc:   T10 at Symbios.COM
> >
> > Subject:  Re: New wave forms for SPI-3 Fig 44 & 45
> >
> > Gene
> >
> > I didn't understand what that meeting was for, I thought it might be for
> > something else.
> >
> > I thought we could all just look at our receivers with the 'notch' type
> > waveform
> > and say on the reflector whether we had any problems with it or not.
> > If it turns out that everybody else also has no problem
> > with the reciever mask, after having reviewed their simulations.
> > Yes, I would say then that another meeting is not needed and we
> > can wait until the July working group meeting to proceed with 99-127r6.
> > We will have met the 2 week rule.
> >
> > Your right, figure 44 & 45 don't really show the receiver mask detail, so
> > in
> > other words, I have no problem with the receiver mask or any other part of
> > 99-127r6.pdf
> >
> > Regards,
> >
> > Wally
> >
> > Gene_Milligan at notes.seagate.com wrote:
> >
> > > * From the T10 Reflector (t10 at symbios.com), posted by:
> > > * Gene_Milligan at notes.seagate.com
> > > *
> > > Does this imply that from your standpoint the meeting  to review the
> > > results of simulations with the proposed receive mask is not needed?
> > >
> > > Figures 44 and 45 do not have the required detail of the proposed
> > receiver
> > > mask so it is not clear if agreement with figures 44 and 45 indicate that
> > > simulations support the proposed receiver mask.
> > >
> > > Gene
> > >
> > > wally at eng.adaptec.com (Walter Bridgewater) on 06/01/99 08:53:29 PM
> > >
> > > To:   T10 at Symbios.COM
> > > cc:    (bcc: Gene Milligan)
> > >
> > > Subject:  New wave forms for SPI-3 Fig 44 & 45
> > >
> > > * From the T10 Reflector (t10 at symbios.com), posted by:
> > > * wally at eng.adaptec.com (Walter Bridgewater)
> > > *
> > >
> > > To Everybody,
> > >
> > > >From last weeks timing budget meeting in Colorado Springs,
> > > I said I wanted to do some simulations with the new waveforms.
> > >
> > > We have looked at any timing issues that the notch in the
> > > timing waveform might cause and haven't found any.
> > >
> > > So, as far as we are concerned, the new proposed waveforms
> > > for figures 44 & 45 in the SPI-3 are okay with us.
> > >
> > > Regards,
> > >
> > > Wally
> > > *
> > > * For T10 Reflector information, send a message with
> > > * 'info t10' (no quotes) in the message body to majordomo at symbios.com
> > >
> > > *
> > > * For T10 Reflector information, send a message with
> > > * 'info t10' (no quotes) in the message body to majordomo at symbios.com
> >
> > *
> > * For T10 Reflector information, send a message with
> > * 'info t10' (no quotes) in the message body to majordomo at symbios.com
> 
> *
> * For T10 Reflector information, send a message with
> * 'info t10' (no quotes) in the message body to majordomo at symbios.com
> 
*
* For T10 Reflector information, send a message with
* 'info t10' (no quotes) in the message body to majordomo at symbios.com





More information about the T10 mailing list