256 KByte Flash Module (S12XFTMR256K1V1)
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
581
The security function in the Flash module is described in
Section 18.5
.
18.3.1.3
Flash CCOB Index Register (FCCOBIX)
The FCCOBIX register is used to index the FCCOB register for Flash memory operations.
CCOBIX bits are readable and writable while remaining bits read 0 and are not writable.
18.3.1.4
Flash ECCR Index Register (FECCRIX)
The FECCRIX register is used to index the FECCR register for ECC fault reporting.
ECCRIX bits are readable and writable while remaining bits read 0 and are not writable.
1
Preferred SEC state to set MCU to secured state.
Offset Module Base + 0x0002
7
6
5
4
3
2
1
0
R
0
0
0
0
0
CCOBIX[2:0]
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 18-6. FCCOB Index Register (FCCOBIX)
Table 18-9. FCCOBIX Field Descriptions
Field
Description
2–0
CCOBIX[1:0]
Common Command Register Index— The CCOBIX bits are used to select which word of the FCCOB register
array is being read or written to. See
Section 18.3.1.11, “Flash Common Command Object Register (FCCOB)
,”
for more details.
Offset Module Base + 0x0003
7
6
5
4
3
2
1
0
R
0
0
0
0
0
ECCRIX[2:0]
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 18-7. FECCR Index Register (FECCRIX)
Table 18-10. FECCRIX Field Descriptions
Field
Description
2-0
ECCRIX[2:0]
ECC Error Register Index— The ECCRIX bits are used to select which word of the FECCR register array is
being read. See
Section 18.3.1.14, “Flash ECC Error Results Register (FECCR)
,” for more details.
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