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 .cdl file - getting the TX length and width 

Last post Wed, Oct 3 2012 2:06 PM by skillUser. 1 replies.
Started by cadence4help 03 Oct 2012 01:03 AM. Topic has 1 replies and 637 views
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  • Wed, Oct 3 2012 1:03 AM

    .cdl file - getting the TX length and width Reply

    Hi All

    If I want to find out the n_width and p_width of a library cell (for example), can I open the .cdl file and add up the MN1, MN2, MN* ..  w= to get the n_width and MP0, MP1, MP* ... w= to get the p_width.

    In the below ecample for "cellA"

    .SUBCKT cellA pin1 pin2
    MN2 ........ w=1u l=5u ....
    MN0 ........ w=2u l=6u ....
    MP0 ........ w=3u l=7u .....
    MP1 ........ w=4u l=8u ...
    .ENDS
     

    Will the n_width of the cellA be: 1+2 = 3u and p_width of the cellA be: 3+4 = 7u

    Similarly will the n_length of cellA be: 5+6 = 11u and p_length be: 7+8 = 15u?

    Anyone can throw light on this? This is the first time me reading a .cdl file.

     

    thanks

    R

     

    • Post Points: 20
  • Wed, Oct 3 2012 2:06 PM

    • skillUser
    • Top 10 Contributor
    • Joined on Fri, Sep 19 2008
    • Austin, TX
    • Posts 2,570
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    Re: .cdl file - getting the TX length and width Reply

    Hi,

    CDL is a spice-like netlist format and does not necessarily represent the true width of the cell, if this is what you are trying to calculate. What does summing the N / P length/width give you, what are you looking for?

    Lawrence.

    • Post Points: 5
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Started by cadence4help at 03 Oct 2012 01:03 AM. Topic has 1 replies.