Passage: The more recent DragonBall MX series microcontrollers, later renamed the Freescale i.MX (MC9328MX/MCIMX) series, are intended for similar application to the earlier DragonBall devices but are based on an ARM processor core instead of a 68000 core.

Question: On which processor is based the latest version of DragonBall MX microcontrollers?
ARM processor core