UCM can be enabled by the xrun command option -ams_ucm for all IE card statements.
xrun -ams_ucm amxcf.scs
With UCM, you can use the IE card option accuracy.
ie accuracy=moderate | liberal | conservative
The accuracy option lets you set the connect module features compatible with the existing connect rules CR_basic, CR_full_fast, or CR_full respectively. The default value for this option is moderate. Any feature in the full set of features can be parameterized in an IE card:
ie accuracy=liberal vsup=1.2 nox=1 ignore_xz=0
To enable the dynamic power supply features in UCM, use the IE card parameter supply. If not specified, UCM supports constant power and LPS by default.
ie supply=SS | INH | DVS
By default, the parameter supply sets the accuracy command to moderate:
ie supply=DVS vddnet=top.I1.I2.vdd
Using the parameters vddnet or vssnet with the accuracy command enables supply=DVS by default.
Example:
ie accuracy=liberal vddnet=top.I1.I2.vdd