I guess those are related to chicken bits, where you have some internal register in an ASIC which allows you to enable/disable a silicon feature in software bef

I guess those are related to chicken bits, where you have some internal register in an ASIC which allows you to enable/disable a silicon feature in software before shipping. https://en.wiktionary.org/wiki/chicken_bit https://en.wiktionary.org/wiki/chicken_bit