MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 868

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

96 KByte Flash Module (S12FTMRG96K1V1)
The FPROT register, described in
accidental program or erase. Three separate memory regions, one growing upward from global address
0x3_8000 in the Flash memory (called the lower region), one growing downward from global address
0x3_FFFF in the Flash memory (called the higher region), and the remaining addresses in the Flash
memory, can be activated for protection. The Flash memory addresses covered by these protectable regions
are shown in the P-Flash memory map. The higher address region is mainly targeted to hold the boot loader
code since it covers the vector space. Default protection settings as well as security information that allows
the MCU to restrict access to the Flash module are stored in the Flash configuration field as described in
Table
868
1
0x3FF08-0x3_FF0F form a Flash phrase and must be programmed in a single command write sequence. Each byte in
the 0x3_FF08 - 0x3_FF0B reserved field should be programmed to 0xFF.
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
0x3_FF08-0x3_FF0B
0x3_FF00-0x3_FF07
25-4.
Global Address
0x3_FF0C
0x3_FF0D
0x3_FF0E
0x3_FF0F
1
1
1
1
0x2_8000 – 0x3_FFFF
Global Address
1
(Bytes)
Size
8
4
1
1
1
1
Table 25-3. P-Flash Memory Addressing
MC9S12G Family Reference Manual,
Section
Table 25-4. Flash Configuration Field
Backdoor Comparison Key
Refer to
Section 25.5.1, “Unsecuring the MCU using Backdoor Key
Reserved
P-Flash Protection byte
Refer to
EEPROM Protection byte
Refer to
Flash Nonvolatile byte
Refer to
Flash Security byte
Refer to
25.3.2.9, can be set to protect regions in the Flash memory from
(Bytes)
96 K
Section 25.4.6.11, “Verify Backdoor Access Key
Section 25.3.2.9, “P-Flash Protection Register (FPROT)”
Section 25.3.2.10, “EEPROM Protection Register (EEPROT)”
Section 25.3.2.16, “Flash Option Register (FOPT)”
Section 25.3.2.2, “Flash Security Register (FSEC)”
Size
P-Flash Block
Contains Flash Configuration Field
(see
Table
.
.
25-4)
Description
Description
Rev.1.01
Command,” and
Freescale Semiconductor
Access”