S912XHZ512F1VAG Datasheet, PDF (144/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 3 512 Kbyte Flash Module (S12XFTX512K4V3)
FPHDIS=1
FPLDIS=1
7
0x78_0000
FPHDIS=1
FPLDIS=0
FPHDIS=0
FPLDIS=1
6 Scenario 5
FPHDIS=0
FPLDIS=0
4
0x7F_8000
0x7F_FFFF
3
0x78_0000
2 ^Scenario 1
FPLS[1:0]
FPOPEN=1
FPHS[1:0]
0
0x7F_8000
FPLS[1:0]
FPOPEN=0
0x7F_FFFF
FPHS[1:0]
Unprotected region
Protected region with size
defined by FPLS
Protected region
not defined by FPLS, FPHS
Protected region with size
defined by FPHS
Figure 3-11. Flash Protection Scenarios
MC9S12XHZ512 Data Sheet, Rev. 1.06
144
Freescale Semiconductor