256 KByte Flash Module (S12XFTMR256K1V1)
MC9S12XHY-Family Reference Manual, Rev. 1.01
588
Freescale Semiconductor
Figure 18-13. P-Flash Protection Scenarios
7
6
5
4
FPHS[1:0]
FPLS[1:0]
3
2
1
0
FPHS[1:0]
FPLS[1:0]
FPHDIS = 1
FPLDIS = 1
FPHDIS = 1
FPLDIS = 0
FPHDIS = 0
FPLDIS = 1
FPHDIS = 0
FPLDIS = 0
Scenario
Scenario
Unprotected region
Protected region with size
Protected region
Protected region with size
defined by FPLS
defined by FPHS
not defined by FPLS, FPHS
0x7F_8000
0x7F_FFFF
0x7F_8000
0x7F_FFFF
FLASH START
FLASH START
FPOPEN = 1
FPOPEN = 0
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