I received this explanation from Freescale support:
"...
The difference is in mask set and their errata. But the mask 07N has never been produced so you can omit this option. I will inform CodeWarrior to remove it.
You should select mask set M27V and everything will be OK.
The mask set defines internal circuitry => errata list. It has no influence on defined features defined by reference manual and data sheet...."