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S912XHY128F0VLM Datasheet, PDF (573/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers
256 KByte Flash Module (S12XFTMR256K1V1)
Table 18-2. Flash Configuration Field1
Global Address
Size
(Bytes)
Description
0x7F_FF0F2
1
Flash Security byte
Refer to Section 18.3.1.2, “Flash Security Register (FSEC)”
1 Older versions may have swapped protection byte addresses
2 0x7FF08 - 0x7F_FF0F form a Flash phrase and must be programmed in a single command write sequence. Each byte in
the 0x7F_FF08 - 0x7F_FF0B reserved field should be programmed to 0xFF.
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
573