[ibis-macro] Re: IBIS model for SerDes IO - It is not achoice between AMS and AMI, it is a choice between AMS and IV-VT curves

  • From: <colin_warwick@xxxxxxxxxxx>
  • To: <Arpad_Muranyi@xxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
  • Date: Wed, 22 Oct 2008 08:52:05 -0600

Hi Arpad,

 

You write:

 "These languages are standard languages and there are multiple EDA tools 
supporting them so there is no need to write the same model in multiple 
languages.  The only problem is that the *-AMS languages are not as widely 
supported..."

 

There is another issue with AMS languages (and HSPICE netlists) in that the 
encrypted version are (of necessity) proprietary. Encryption (or at least IP 
hiding) is vital for model distribution. AMI uses the nature of the C 
compilation process, which hides IP in cryptic (albeit not strictly encrypted) 
machine code. AMS would require multiple versions of each, each re-encrypted 
for each tool.

 

-- Colin

 

PS If any vendor wishes to encrypt their HSPICE or Verilog-A models using the 
ADS IP Encoder so that our mutual customers can use the models in ADS, please 
contact me!

 

http://signal-integrity-tips.com <http://signal-integrity-tips.com/>   

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