RE: [IBIS-Users] [IBIS] queries regarding ibis

Hello, Arnab,

1) To use two power supplies to the I/O buffer: Edit the SPICE input
file(s) to add the DC power supply, and make sure the node name matches the
appropriate pin on the buffer. Avoid the use of ".GLOBAL" commands.

2) The two drive conditions (high/low) are two separate models. You
need to modify the SPICE netlist to set the I/O buffer into its high-drive
state and create a second model. Use [Model Selector] to allow swapping of
model assignment.

Best regards,

Lynne

"IBIS training when you need it, where you need it."

Dr. Lynne Green

Green Streak Programs

http://www.greenstreakprograms.com

425-788-0412

lgreen22@mindspring.com

  _____

From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org] On Behalf
Of arnab
Sent: Thursday, January 06, 2005 10:40 AM
To: ibis@eda.org
Cc: ibis-users@eda.org
Subject: [IBIS-Users] [IBIS] queries regarding ibis

Hi all,

I have some doubts regarding generation of ibis models

1.Is it possible to generate IO model for 2 power supplies?If yes then how
do we go about it?

2. Can we have the ibis models generated for a high drive as well as low
drive for the i/o buffers.Presently we keep the drive low and generate the
models.

Any help in this regard would be appreciated.Thanking in advance.

warm regards

arnab hazarika

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Received on Thu Jan 6 10:02:54 2005