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RELEASE NOTES FOR VERSION 3.2 OF THE PENTIUM(R) PRO PROCESSOR I/O BUFFER 
MODELS IN IBIS FORMAT
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     Following are changes between version 3.1 and version 3.2 release
     of the Pentium(r) Pro Processor I/O buffer information.  The major
     change has been to the Pentium Pro I/O buffer model.


1. Model Updates
   The Pentium Pro Processor IBIS model has been updated to reflect the 
   current GTL+ buffers on the Pentium Pro Processor at 180/200Mhz.  In
   general, these buffers are a bit weaker and slower than the buffers
   on the original Pentium Pro Processor at 150Mhz.  Therefore, the
   data in the "max" column of the [Pulldown] data has been adjusted to
   reflect the weaker buffer (i.e. higher Vol at maximum strength) and
   the "max" column of the [Rising waveform] and [Falling waveform] data
   reflects a slower rise and fall time.  Note that the minimum 
   (slowest/weakest buffer) data is unchanged.  It is recommended that
   all future designs use the data found in the pent200.ibs file.

   Because this release is intended for the Pentium Pro Processor at
   180/200Mhz only, the package stub length information has also been
   updated.  This information is now in the files called "ppshort.txt"
   and "pplong.txt".

   In addition to the maximum data changes, this release corrects two minor 
   errors found in the previous IBIS files.  The minimum and maximum data 
   used for the [Temperature Range] keyword has been corrected (they were
   swapped), and the proper units have been added to the Dv/Dt numbers 
   in the [Ramp] keyword.