RE: Default value of Vmeas

Todd,

OK, You are right. Also, when we use some tools,
we have to know whether the tool uses some default value, so that
we can evaluate the accuracy.

Thanks.

Brian
-----Original Message-----
From: Todd Westerhoff [mailto:twester@hhnetwk.com]
Sent: Thursday, June 07, 2001 8:47 AM
To: ibis-users@eda.org
Subject: RE: Default value of Vmeas

I don't see how there could be a default value. Vmeas is the voltage the
semiconductor vendor guarantees the device timing numbers to, and there
can't be a "standard" value for this voltage across multiple technologies.
If the value is left unspecified in the IBIS model, tools shouldn't "hide"
the problem by assuming a default - they should red-flag it.

Make sense?

Todd.

Todd Westerhoff
SI Engineer
Hammerhead Networks
5 Federal Street
Billerica, MA 01821
twester@hhnetwk.com
ph: 978-671-5084

-----Original Message-----
From: Wang, Brian [mailto:brian.wang@intel.com]
Sent: Wednesday, June 06, 2001 6:05 PM
To: 'ibis-users@eda.org'
Subject: Default value of Vmeas

Hi,

I checked the versin 3.2. There is no default value
of Vmeas. Should we set a default value in specification,
or something I missed ?

Thanks.

Brian Wang
Intel Corp

 
Received on Thu Jun 7 12:19:02 2001