EEPROM page failure -- fault

[dino12]

Hi,

I am using EEPROM S12X controller for an industrial automation side. Where we need to maintain multiple copy of some configuration data. Multiple copies are used because to maintain back-up of data.

My question is that if S12X -- can have 4k of eeprom, i.e 4 pages of size 1K.

Then in this case if one page of eeprom gets corrupted may be because of some reason. Then data in other 3 pages will also get corrupted ?

Or each page is an independent EEPROM corruption of one does not affect the other ?

Please suggest.

Regards,

Dino

[thakkarhimanshu]

Hi,

In my opinion the EEPROM can be linearly addressed with global addressing as well. As such there are not four different EEPROMs. Paging is done so that the entire memory addressing can fit into 64K of addressing. If for some reason the data on one page gets corrupted ( or in other words if some part of EEPROM is corrupted), then there are strong chances that the entire EEPROM is corrupted i.e. data on all the pages is corrupted. In any case the corruption of data on one page certainly means that data is not reliable.

Regards,

Himanshu