Tamper Erase ensures rapid overwrite on tamper of a Data FLASH row selected by
SECCTRL.TEROW.
When a RTC tamper event occur while tamper erase is enabled
(SECCTRL.TAMPEEN=1):
- the Tamper Erase row in data space addressed by SECCTRL.TEROW is written to
zero.
This is performed using a special overwrite mechanism in the NVM block that
overwrites the complete row with zero. The RTC must be
configured to generate the tamper erase event.
Note: Data Flash endurance is affected by the tamper erase feature. Refer to the "NVM
Reliability Characteristics" from Electrical Characteristics chapter.