MC9S12GRMV1 Datasheet, PDF (837/1292 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual and Data Sheet

32 KByte Flash Module (S12FTMRG32K1V1)
Table 25-11. Flash Security States
SEC[1:0]
Status of Security
00
SECURED
01
SECURED¹
10
UNSECURED
11
SECURED
1 _{Preferred SEC state to set MCU to secured state.}
The security function in the Flash module is described in Section 25.5.
25.3.2.3 Flash CCOB Index Register (FCCOBIX)
The FCCOBIX register is used to index the FCCOB register for Flash memory operations.
Offset Module Base + 0x0002
7
R
0
W
Reset
0
6
5
4
3
2
1
0
0
0
0
0
CCOBIX[2:0]
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 25-7. FCCOB Index Register (FCCOBIX)
CCOBIX bits are readable and writable while remaining bits read 0 and are not writable.
Table 25-12. FCCOBIX Field Descriptions
Field
Description
2–0
Common Command Register Index— The CCOBIX bits are used to select which word of the FCCOB register
CCOBIX[1:0] array is being read or written to. See <st-blue>25.3.2.11 Flash Common Command Object Register (FCCOB),”
for more details.
25.3.2.4 Flash Reserved0 Register (FRSV0)
This Flash register is reserved for factory testing.
Offset Module Base + 0x000C
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 25-8. Flash Reserved0 Register (FRSV0)
All bits in the FRSV0 register read 0 and are not writable.
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
839