Datasheet

Chapter 2 256 Kbyte Flash Module (S12FTS256K2V1)
MC9S12E256 Data Sheet, Rev. 1.10
96 Freescale Semiconductor
FPROT register reflect the active protection scenario. See the FPHS and FPLS descriptions for additional
restrictions.
2.3.2.7 Flash Status Register (FSTAT)
The banked FSTAT register defines the operational status of the module.
Table 2-16. Flash Protection Scenario Transitions
From
Protection
Scenario
To Protection Scenario
1
1
Allowed transitions marked with X.
01234567
0 XXXX
1XX
2XX
3X
4XX
5 XXXX
6XXXX
7 XXXXXXXX
Module Base + 0x0005
76543210
R
CBEIF
CCIF
PVIOL ACCERR
0 BLANK 0 0
W
Reset 11000000
= Unimplemented or Reserved
Figure 2-10. Flash Status Register (FSTAT - Normal Mode)
Module Base + 0x0005
76543210
R
CBEIF
CCIF
PVIOL ACCERR
0 BLANK
FAIL
0
W
Reset 11000000
= Unimplemented or Reserved
Figure 2-11. Flash Status Register (FSTAT - Special Mode)