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Restrictions on use of BACKUP STOP mode and BACKUP SLEEP mode

Product Types
TOSHIBA Microcontrollers TX03 series
  • TMPM361F10FG
  • TMPM362F10FG
  • TMPM363F10FG
  • TMPM364F10FG

This is to inform you of restrictions on use of BACKUP STOP and BACKUP SLEEP modes of TX03 series. If you need any further information, please contact your local Toshiba sales representative.

Notes on use of BACKUP STOP mode and BACKUP SLEEP mode

In the BACKUP STOP mode or BACKUP SLEEP mode (hereafter called BACKUP mode), if a MCU returns to NORMAL mode by reset using the reset pin, the following phenomenon may occur.

  • (1) Parts of registers in the CPU may not be initialized correctly. Thus, CPU may not operate properly.
  • (2) Parts of peripheral circuits may not be initialized correctly.
Condition

This phenomenon occurs only when a MCU returns to NORMAL mode from BACKUP mode by reset using the reset pin. Other events do not generate this phenomenon.

Restrictions (Workaround)

You can use the following two methods to avoid this phenomenon.

  • (1) Do not use BACKUP mode.
  • (2) If BACKUP mode is used, do not use the return service routine to NORMAL mode using the reset pin.
How to recover from the phenomenon

Turn on MCU’s power again when this phenomenon occurs.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.