NT3H2111 SRAM Mirror

[straga_riccardo]

I'd like to write some data from my micro (I2C side) to the SRAM of a NT3H2111. I also want to be able to modify the SRAM via an app on my phone, so I decided to enable the SRAM mirror (SRAM_MIRROR_ON_OFF = 1) and to disable the pass-through (PTHROU_ON_OFF = 0).

I have also chosen 0x01 as SRAM_MIRROR_BLOCK.

My questions are :

1) Is the eeprom endurance go down each time I write on SRAM via I2C ?

2) Is the eeprom endurance go down each time I write on SRAM via the NFC ?

Thank you

Riccardo

[IvanRuiz]

Hello,

No, the fact that the SRAM is mirrored to the EEPROM means that the SRAM will be accessible to the NFC interface. This way, you will be writing to / reading from the SRAM directly on both interfaces.

For more information, please refer to chapter 8.3.4 of the data-sheet:

https://www.nxp.com/docs/en/data-sheet/NT3H2111_2211.pdf 

Regards,

Ivan.