You mean the legendary "Ranger Chipset"... Designed by the original team while still at Commodore... But never put into production... Apparently it would have been a killer!!!
Yep! I could not think of the name for anything. I am hoping that On the Edge - Part II will shed some more light on this, the original team, and how this all got shuffled around.
If memory serves, it would have put CBM insanely far ahead of everyone else.
Alas, what could have been.
-P