![NXP Semiconductors Kinetis KE1xZ256 Скачать руководство пользователя страница 335](http://html1.mh-extra.com/html/nxp-semiconductors/kinetis-ke1xz256/kinetis-ke1xz256_reference-manual_1721813335.webp)
1. User margin read may be run using the Read 1s Section command to verify all bits are erased.
16.5.11.7.1 Suspending an Erase Flash Sector Operation
To suspend an Erase Flash Sector operation set the FCNFG[ERSSUSP] bit when CCIF,
ACCERR, and FPVIOL are clear and the CCOB command field holds the code for the
Erase Flash Sector command. During the Erase Flash Sector operation (see
), the flash samples the state of the ERSSUSP bit at convenient points. If
the FTFE detects that the ERSSUSP bit is set, the Erase Flash Sector operation is
suspended and the FTFE sets CCIF. While ERSSUSP is set, all writes to flash registers
are ignored except for writes to the FSTAT and FCNFG registers.
If an Erase Flash Sector operation effectively completes before the FTFE detects that a
suspend request has been made, the FTFE clears the ERSSUSP bit prior to setting CCIF.
When an Erase Flash Sector operation has been successfully suspended, the FTFE sets
CCIF and leaves the ERSSUSP bit set. While CCIF is set, the ERSSUSP bit can only be
cleared to prevent the withdrawal of a suspend request before the FTFE has
acknowledged it.
16.5.11.7.2 Resuming a Suspended Erase Flash Sector Operation
If the ERSSUSP bit is still set when CCIF is cleared to launch the next command, the
previous Erase Flash Sector operation resumes. The FTFE acknowledges the request to
resume a suspended operation by clearing the ERSSUSP bit. A new suspend request can
then be made by setting ERSSUSP. A single Erase Flash Sector operation can be
suspended and resumed multiple times.
There is a minimum elapsed time limit of 4.3 msec between the request to resume the
Erase Flash Sector operation (CCIF is cleared) and the request to suspend the operation
again (ERSSUSP is set). This minimum time period is required to ensure that the Erase
Flash Sector operation will eventually complete. If the minimum period is continually
violated, i.e. the suspend requests come repeatedly and too quickly, no forward progress
is made by the Erase Flash Sector algorithm. The resume/suspend sequence runs
indefinitely without completing the erase.
16.5.11.7.3 Aborting a Suspended Erase Flash Sector Operation
The user may choose to abort a suspended Erase Flash Sector operation by clearing the
ERSSUSP bit prior to clearing CCIF for the next command launch. When a suspended
operation is aborted, the FTFE starts the new command using the new FCCOB contents.
Chapter 16 Flash Memory Module (FTFE)
Kinetis KE1xZ256 Sub-Family Reference Manual, Rev. 3, 07/2018
NXP Semiconductors
335
Содержание Kinetis KE1xZ256
Страница 2: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 2 NXP Semiconductors...
Страница 56: ...SysTick Clock Configuration Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 56 NXP Semiconductors...
Страница 62: ...Interrupt channel assignments Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 62 NXP Semiconductors...
Страница 124: ...Application information Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 124 NXP Semiconductors...
Страница 130: ...Initialization application information Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 130 NXP Semiconductors...
Страница 178: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 178 NXP Semiconductors...
Страница 356: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 356 NXP Semiconductors...
Страница 368: ...Module clocks Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 368 NXP Semiconductors...
Страница 410: ...Interrupts Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 410 NXP Semiconductors...
Страница 562: ...Power supply supervisor Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 562 NXP Semiconductors...
Страница 592: ...General security features Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 592 NXP Semiconductors...
Страница 604: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 604 NXP Semiconductors...
Страница 622: ...Application Information Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 622 NXP Semiconductors...
Страница 634: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 634 NXP Semiconductors...
Страница 674: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 674 NXP Semiconductors...
Страница 690: ...Module Signal Description Tables Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 690 NXP Semiconductors...
Страница 712: ...Functional description Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 712 NXP Semiconductors...
Страница 820: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 820 NXP Semiconductors...
Страница 1030: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1030 NXP Semiconductors...
Страница 1052: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1052 NXP Semiconductors...
Страница 1066: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1066 NXP Semiconductors...
Страница 1268: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1268 NXP Semiconductors...
Страница 1314: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1314 NXP Semiconductors...
Страница 1316: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1316 NXP Semiconductors...