68030 at least, i know is capable of addressing upto 256kb of L2 cache - as the pins exist to select it & be transparent to the system (when external cache is installed, its treated as internal cache, rather than system memory). Not sure about the 68020, and the 68000 had no internal caches, or external, hence the addition of 16kb of it on this design.
True - why bother with a 68000 when you could go for one of the others, but, the more information, schematics and stuff i can throw into the ring, the better - it's all adaptable
