![NXP Semiconductors Kinetis KE1xZ256 Reference Manual Download Page 303](http://html1.mh-extra.com/html/nxp-semiconductors/kinetis-ke1xz256/kinetis-ke1xz256_reference-manual_1721813303.webp)
Address: 4002_0000h base + 10h (1d × i), where i=0d to 3d
Bit
7
6
5
4
3
2
1
0
Read
Write
Reset
* Notes:
x = Undefined at reset.
•
FTFE_FPROTn field descriptions
Field
Description
PROT
Program Flash Region Protect
Each program flash region can be protected from program and erase operations by setting the associated
PROT bit to the protected state.
The protection can only be increased, meaning that currently unprotected memory can be protected, but
currently protected memory cannot be unprotected. Since unprotected regions are marked with a 1 and
protected regions use a 0, only writes changing 1s to 0s are accepted. This 1-to-0 transition check is
performed on a bit-by-bit basis. Those FPROT bits with 1-to-0 transitions are accepted while all bits with 0-
to-1 transitions are ignored.
Restriction: The user must never write to any FPROT register while a command is running (CCIF=0).
Trying to alter data in any protected area in the program flash memory results in a protection violation
error and sets the FSTAT[FPVIOL] bit. A full block erase of a program flash block is not possible if it
contains any protected region.
0
Program flash region is protected.
1
Program flash region is not protected
16.4.4.7 EEPROM Protection Register (FTFE_FEPROT)
The FEPROT register defines which EEPROM regions of the FlexRAM are protected
against program and erase operations. Protected EEPROM regions cannot have their
content changed by writing to it. Unprotected regions can be changed by writing to the
FlexRAM.
Address: 4002_0000h base + 16h offset = 4002_0016h
Bit
7
6
5
4
3
2
1
0
Read
Write
Reset
* Notes:
x = Undefined at reset.
•
Chapter 16 Flash Memory Module (FTFE)
Kinetis KE1xZ256 Sub-Family Reference Manual, Rev. 3, 07/2018
NXP Semiconductors
303
Summary of Contents for Kinetis KE1xZ256
Page 2: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 2 NXP Semiconductors...
Page 178: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 178 NXP Semiconductors...
Page 356: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 356 NXP Semiconductors...
Page 410: ...Interrupts Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 410 NXP Semiconductors...
Page 604: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 604 NXP Semiconductors...
Page 634: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 634 NXP Semiconductors...
Page 674: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 674 NXP Semiconductors...
Page 820: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 820 NXP Semiconductors...
Page 1030: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1030 NXP Semiconductors...
Page 1052: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1052 NXP Semiconductors...
Page 1066: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1066 NXP Semiconductors...
Page 1268: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1268 NXP Semiconductors...
Page 1314: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1314 NXP Semiconductors...
Page 1316: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1316 NXP Semiconductors...