Displaying parameter of internal component to the top-level block

Hi,

Using Virtuoso Schematic composer tool, I designed a CMOS circuit,
that has some parameters, W and L for all transistors, as well as
"currents" flwoing in some branches..

I wanna dispaly some of these parameters of the inner blocks to the
top hierarchical level block.

Will I need to write a CDF parameters file to display them and attache
to the top-level block? or how can i do?

If it will need such a CDF file, can you point out the structure of
it, and guide me to the correct way to write? Or show me a sample code
for that task?

Thank you in advance,
Ahmad,

 

If you use pPar() command to set the W and L then you can set these by
properties on the outer block. I don't know of any way to read values
that you have set in a block to a higher level. Parameters can only be
propagated from the top towards the bottom.

If your currents are flowing in and out of the block pin, you can use
the cdsParam() label in your block symbol. There is more info on that
in the composer help pdf. Then you can set what kind of info is shown
from the Edit menu.

Open the CDF editor on your top-level block (that is the block that
you instantiate in the top level, not the top level itself) and add
parameters in the parameters section, the values of these parameters
can be attached to specific instances in that block by using the
pPar() function.

use the cdfDump() function on the CIW to get example output.