I was wondering if there is a way to disallow the movement of cells by the optDesign command in SoC Encounter.
I have two power domains, where one power domain contains cells that are power gated (rails are virtual vdd and gnd) and the other power domain has nominal supply. However, when I run my encounter script, I do not want the optDesign command to move the cells i have specified (via CPF) to be moved out of the designated area for the gated power domain. Is there a way I can do this without commenting out all the optDesign commands? Also, is there a way to allow the nominal power domain routing to flow through the gated power domain (so it can reach the pins on the other side of the domain)
Any help or advice is appreciated. Thanks!