A present ASIC may include functionality exceeding that which will be operative at one given time (e.g., when the chip is packaged and inserted into a broader circuit). The excess ASIC functionality may be chosen in anticipation of changing market environments, and/or differing product requirements in various market spaces (e.g., in different countries where different interoperability standards are chosen). In such cases, an appropriate subset of the excessive ASIC functionality may be programmably activated for each market space after manufacture.