[SI-LIST] IBIS generation methodology of v3.2 Vs v4.2

Hello All,


-Is there any major change in ibis-v4.2 w.r.t. ibis-3.2
 ragarding generation of following tables:

[POWER Clamp]
[GND Clamp]
[Pullup]
[Pulldown]
[Ramp]
[*ing Waveform]


-My simulation software vendor says that it supports only ibis-v4.2 and
higher specs.
 So, I changed "[IBIS Ver]   3.2"  to "[IBIS Ver]   4.2"
 in the ibis file (supporting ibis ver 3.2) of bidirectional buffer
generated by me .
 And tried to simulate it with the simulation software provided by my
vendor.

Is it technically incorrect to change only [IBIS Ver] and to keep other
tables same , while shifting to higher versions.

i.e.,are  ibis versions backward-compatible ?




Thanks in advance for your feedback,

Best Regards,
Sudhanshu









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