S912XEP100J5MAGR Freescale Semiconductor, S912XEP100J5MAGR Datasheet - Page 848

• Manufacturer Part Number: S912XEP100J5MAGR
• Description: S912XEP Series 16 Bit 50 Mhz 1 MB Flash 64 KB Ram Microcontroller - LQFP-144
• Manufacturer: Freescale Semiconductor

Chapter 24 128 KByte Flash Module (S12XFTM128K2V1)
The security function in the Flash module is described in
24.3.2.3
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.
24.3.2.4
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.
848
CCOBIX[1:0]
Offset Module Base + 0x0002
Offset Module Base + 0x0003
Reset
Reset
Field
2–0
W
W
R
R
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. Preferred SEC state to set MCU to secured state.
Figure 24-7. FCCOB Index Register (FCCOBIX)
SEC[1:0]
Figure 24-8. FECCR Index Register (FECCRIX)
MC9S12XE-Family Reference Manual , Rev. 1.23
Table 24-13. FCCOBIX Field Descriptions
00
01
10
11
Table 24-12. Flash Security States
0
0
0
0
5
5
Section 24.3.2.11, “Flash Common Command Object Register
0
0
0
0
4
4
Status of Security
UNSECURED
Description
SECURED
SECURED
SECURED
Section
0
0
0
0
3
3
(1)
24.5.
0
0
2
2
CCOBIX[2:0]
ECCRIX[2:0]
Freescale Semiconductor
0
0
1
1
(FCCOB),”
0
0
0
0