S912XEP100J5MAG Datasheet, PDF (40/1324 Pages) Freescale Semiconductor, Inc – Features of the MC9S12XE-Family are listed here. Please see Table D-2.for memory options and Table D-2. for the peripheral features that are available on the different family members.

Chapter 1 Device Overview MC9S12XE-Family
1.1.6 Detailed Register Map
The detailed register map is listed in Appendix A.
1.1.7 Part ID Assignments
The part ID is located in two 8-bit registers PARTIDH and PARTIDL (addresses 0x001A and 0x001B).
The read-only value is a unique part ID for each revision of the chip. Table 1-6 shows the assigned part ID
number and Mask Set number.
MC9S12XE-Family Reference Manual Rev. 1.25
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Freescale Semiconductor