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Data read from unimplemented memory space in the flash memory module is undefined.
Writes to unimplemented or reserved memory space (registers) in the flash memory
module are ignored.
45.3.1 Flash Configuration Field Description
The program flash memory contains a 16-byte flash configuration field that stores default
protection settings (loaded on reset) and security information that allows the MCU to
restrict access to the flash memory module.
Flash Configuration Field Offset
Address
0x0_0400–0x0_0407
0x0_0408–0x0_040B
0x0_040F
0x0_040E
0x0_040D
0x0_040C
45.3.2 Program Flash IFR Map
The program flash IFR is nonvolatile information memory that can be read freely, but the
user has no erase and limited program capabilities (see the Read Once, Program Once,
and Read Resource commands in
Read Resource
Command).
The contents of the program flash IFR are summarized in the table found here and further
described in the subsequent paragraphs.
The program flash IFR is located within the program flash 0 memory block .
Address Range
0x00 – 0xBF
0xC0 – 0xFF
Freescale Semiconductor, Inc.
Size (Bytes)
8
4
1
1
1
1
Read Once
Size (Bytes)
192
64
KL27 Sub-Family Reference Manual , Rev. 5, 01/2016
Chapter 45 Flash Memory Module (FTFA)
Backdoor Comparison Key. Refer to
Verify Backdoor Access Key Command
and
Unsecuring the Chip Using
Backdoor Key
Program flash protection bytes. Refer to
the description of the Program Flash
Protection Registers (FPROT0-3).
Reserved
Reserved
Flash nonvolatile option byte. Refer to
the description of the Flash Option
Register (FOPT).
Flash security byte. Refer to the
description of the Flash Security
Register (FSEC).
Command,
Program Once Command
Reserved
Program Once Field
Field Description
Access.
and
Field Description
891
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