Please contact your Freescale sales representative and establish an NDA for:
(MC56F84xxx) Debug Reference Manual
It should be available next week.
This document will be made available to vendors of flash programming equipment and debugging tools, but only under NDA on a need to know basis.
The typical customer will not need it unless they intend to do extensive JTAG manimulation of the debug and EZPORT interface.
Contact your sales representative for more information, or to establish an NDA.