Datasheet

48 KByte Flash Module (S12FTMRG48K1V1)
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor 885
Table 26-4. Flash Configuration Field
Global Address
Size
(Bytes)
Description
0x3_FF00-0x3_FF07 8
Backdoor Comparison Key
Refer to Section 26.4.6.11, “Verify Backdoor Access Key Command,” and
Section 26.5.1, “Unsecuring the MCU using Backdoor Key Access”
0x3_FF08-0x3_FF0B
1
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.
4 Reserved
0x3_FF0C
1
1
P-Flash Protection byte
.
Refer to Section 26.3.2.9, “P-Flash Protection Register (FPROT)”
0x3_FF0D
1
1
EEPROM Protection byte
.
Refer to Section 26.3.2.10, “EEPROM Protection Register (EEPROT)”
0x3_FF0E
1
1
Flash Nonvolatile byte
Refer to Section 26.3.2.16, “Flash Option Register (FOPT)”
0x3_FF0F
1
1
Flash Security byte
Refer to Section 26.3.2.2, “Flash Security Register (FSEC)”