MC9S12HY64 Datasheet, PDF (580/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

48 KByte Flash Module (S12FTMRC48K1V1)
1 _{For range sizes, refer to Table 16-18 and Table 16-19.}
Table 16-18. P-Flash Protection Higher Address Range
FPHS[1:0]
00
01
10
11
Global Address Range
0x3_F800–0x3_FFFF
0x3_F000–0x3_FFFF
0x3_E000–0x3_FFFF
0x3_C000–0x3_FFFF
Protected Size
2 Kbytes
4 Kbytes
8 Kbytes
16 Kbytes
Table 16-19. P-Flash Protection Lower Address Range
FPLS[1:0]
00
01
10
11
Global Address Range
0x3_8000–0x3_83FF
0x3_8000–0x3_87FF
0x3_8000–0x3_8FFF
0x3_8000–0x3_9FFF
Protected Size
1 Kbyte
2 Kbytes
4 Kbytes
8 Kbytes
All possible P-Flash protection scenarios are shown in Figure 16-14. Although the protection scheme is
loaded from the Flash memory at global address 0x3_FF0C during the reset sequence, it can be changed
by the user. The P-Flash protection scheme can be used by applications requiring reprogramming in single
chip mode while providing as much protection as possible if reprogramming is not required.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
580
Freescale Semiconductor