Subject: [IBIS] Golden Waveform clarification
From: Gregory R Edlund (gedlund@us.ibm.com)
Date: Thu May 09 2002 - 09:14:32 PDT
I had and action item from the last meeting to clarify the usage of Golden
Waveforms for BIRD 70.5. Here is my proposal.
|=============================================================================
|
| Keywords: [Test Data]
| Required: No
| Description: Indicates the beginning of a set of Golden Waveforms
| and references the conditions under which they were
derived.
| An IBIS file may contain any number of [Test Data] sections
| representing different driver and load combinations.
|* Golden Waveforms are a set of SPICE waveforms simulated
|* using known ideal test loads. They are useful in verifying
|* the accuracy of behavioral simulation results against the
|* SPICE model from which the IBIS model parameters
originated.
Excerpt from 4/19 meeting minutes:
Regarding the usage rules for the [Test Data] keyword (page 51), Stephen
asked why golden waveforms must be generated using unpackaged models.
Stephen felt that this would prevent a user from including golden waveforms
taken from bench data. Several people noted that the intent of the [Test
Data] is to enable comparisons of EDA tool results with results obtained
from transistor level SPICE simulations, not necessarily bench data.
Stephen remarked that the intent needs to be clarified. Greg Edlund
agreed to propose a couple of sentences explaining the intent.
Greg Edlund
Senior Engineer
Electronic Packaging Integration
IBM Server Technology Development
3605 Hwy. 52 N, Dept. HDC
Rochester, MN 55901
gedlund@us.ibm.com
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