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TM4C123GE6PM: TM4C123 EEPROM Meta-Block

Simon Jagla
Expert 8415 points
Part Number: TM4C123GE6PM

Hi Champs,

The datasheet of TM4C123 states that the endurance of the EEPROM is measured on a meta-block which consists of 2 blocks.

Does this mean that EEPROM block 1 and 2 are one meta-block and block 3 and 4 are a second meta-block and so forth?

Can you confirm that the read and write cycles of block 1 does not influence the endurance of block 3? At least this is how we understood but it is not completely clear where the meta-block starts and ends

  • 0
    TI__Guru**** 244400 points
    Hello Simon

    Yes, that is correct. However from a representation perspective we would always refer to 0 & 1 as the first block.

    If the EEPROM blocks 0 and 1 are programmed and read, then EEPROM block 2 is not affected in terms of endurance. However since the endurance is dependent on the scratch pad area where temporary relocation of data is happening, at EOL of the EEPROM endurance, if block 2 is programmed/erased then it will show the same effects of reduced endurance.