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Using Spice-In on CDL netlist with 3.3V and 1.8V Mosfets. (Read 620 times)
huffdave
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Using Spice-In on CDL netlist with 3.3V and 1.8V Mosfets.
Apr 06th, 2014, 7:23pm
 
So I have a CDL netlist that has both 1.8V and 3.3V mosfets and I want the model name "pmos_1p8" and "pmos_3p3" to appear on the p-devices respectively after import.  (Same syntax for the nmos devices).  
In the CDL netlist, I changed all of the 1.8V device model names from "pmos_1p8" to just "p" and the "pmos_3p3" device model name to just "pm".
(It's a requirement of CDL-In that this parameter be 2 characters max).  
Then I set up a device mapping file as follows:

devMap := nfet n
propMatch := subtype n
termMap := DD GG SS BB
propMap := WW LL
addProp := modelName nmos_1p8

devMap := nfet nm
propMatch := subtype nm
termMap := DD GG SS BB
propMap := WW LL
addProp := modelName nmos_3p3

(Same syntax for the pmos devices).
After running SpiceIn it created a "subtype" property under "User Properties" as "nm" or "n" depending on which device it mapped.
However, the model field stays blank even if I change the
"addProp := model" instead of "modelName" - it doesn't matter
what I do.  How do I get the right model name in the "model"
field after reading in the netlist??  Thx, -Dave
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Andrew Beckett
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Re: Using Spice-In on CDL netlist with 3.3V and 1.8V Mosfets.
Reply #1 - Apr 7th, 2014, 2:17pm
 
Not really a simulation question, more of an Entry Tools question (I expect Ken will move it).

Anyway, which version of the Cadence IC tools are you using?

Regards,

Andrew.
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