S7G2 writing to internal data flash during power off

I am just curious to know if there is a way on S7G2 to detect Power OFF condition to write couple of variables to internal data flash, and if there is a way to do that, the next question is would it have enough time to write 8 bytes before quitting.

If there is way then I don't have to worry about designing a super cap board/Circuitry that can hold the charge for 3-5 secs on power OFF.

I have a requirement to keep track some variables every 0.1 changes, and I don't want to write to memory every 0.1 change as I would hit the upper limit of 100,000 erase/write cycles in a couple of months.

Any input on this is much appreciated.

Thanks,

Sam