FreeLists / si-list / [SI-LIST] Re: Article discussion on bad packages - I/O

[Chris Cheng <Chris.Cheng@xxxxxxxxxxxx>]

Larry,
I would completely agree with you on the need to separate the discussion
between I/O core core power distribution.
Today is the first time I actually have a chance to read the actual article
in EE times that starts the original discussion and I am convince that the
intend of the article is on I/O SSO noise, not core noise impact on the
FPGA.
May be it's just me but the first figure in the article looks really funny.
The current flow direction in the figure for 0->1 or 1->0 seems to be in
reversed direction of what the actual flow should be. What do you think ?
Needless to say, they are I/O switching current, not core.

-----Original Message-----
From: Larry SMITH [mailto:Larry.Smith@xxxxxxx]
Sent: Thursday, January 06, 2005 11:28 AM
To: zhang_kun@xxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Article discussion on bad packages - I/O and core


It would help if we would use the SSN language when referring to I/O PI
and transient current language when referring to core.  This will help
to reduce confusion and emotional mis-interpretations. The core and I/O
PI problems are significantly different and need to be handled
differently in our hardware architectures.

By breaking the PI problems down to these levels, I believe we can come
to better agreement on how to handle them.  (But then maybe some of the
"entertainment appeal" of SI-list will be lost!)

regards,
Larry Smith
Sun Microsystems
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List FAQ wiki page is located at:
                http://si-list.org/wiki/wiki.pl?Si-List_FAQ

List technical documents are available at:
                http://www.si-list.org

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu