mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 621

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

The security function in the Flash module is described in
20.3.2.3
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.
20.3.2.4
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.
Freescale Semiconductor
ECCRIX[2:0]
CCOBIX[1:0]
Offset Module Base + 0x0002
Offset Module Base + 0x0003
Reset
Reset
Field
Field
2-0
2–0
W
W
R
R
ECC Error Register Index— The ECCRIX bits are used to select which word of the FECCR register array is
being read. See
Flash CCOB Index Register (FCCOBIX)
Flash ECCR Index Register (FECCRIX)
0
0
0
0
7
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
for more details.
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
1
Section 20.3.2.14, “Flash ECC Error Results Register
Preferred SEC state to set MCU to secured state.
Figure 20-7. FCCOB Index Register (FCCOBIX)
Figure 20-8. FECCR Index Register (FECCRIX)
Table 20-11. FCCOBIX Field Descriptions
Table 20-12. FECCRIX Field Descriptions
S12XS Family Reference Manual, Rev. 1.10
0
0
0
0
5
5
Section 20.3.2.11, “Flash Common Command Object Register
0
0
0
0
4
4
Description
Description
Section
0
0
0
0
3
3
20.5.
64 KByte Flash Module (S12XFTMR64K1V1)
(FECCR),” for more details.
0
0
2
2
CCOBIX[2:0]
ECCRIX[2:0]
0
0
1
1
(FCCOB),”
0
0
0
0
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