PN5180 EEPROM question

[Shio_Tamba]

I have a question about the EEPROM in PN5180.

I can find this Q&A about read/write cycle for the EEPROM.

https://community.nxp.com/t5/NXP-Designs/PN5180-EEPROM-Hardware-question/m-p/1097966

Q1. I cannot understand the "read/write cycle". The "1 cycle" means only read cycle or only write cycle ?

Q2. I guess that the write cycle occurs when I send the "WRITE_EEPROM", "UPDATE_EEPROM", etc. command to PN5180, and the read cycle occurs when I send the "READ_EEPROM", "RETREVE_RF_CONFIG" etc. command to PN5180. The read/write cycle occurs the other case? 

For example, if we use the DPC, the register values are from EEPROM when the gear changes. The read cycle occurs in this case? 

[Kan_Li]

Hi @Shio_Tamba ,

Q1. I cannot understand the "read/write cycle". The "1 cycle" means only read cycle or only write cycle ?

- The "read/write cycle" here means the program cycle which including writing and erasing.

Q2. I guess that the write cycle occurs when I send the "WRITE_EEPROM", "UPDATE_EEPROM", etc. command to PN5180, and the read cycle occurs when I send the "READ_EEPROM", "RETREVE_RF_CONFIG" etc. command to PN5180. The read/write cycle occurs the other case? 

For example, if we use the DPC, the register values are from EEPROM when the gear changes. The read cycle occurs in this case? 

- Yes, your understanding is correct.

There is no parameter else other than the data retention time related with read operation.  You may refer to an EEPROM data sheet for more details on that. For example, https://www.nxp.com/docs/en/data-sheet/NXH5104.pdf?pspll=1 .

Hope that makes sense,

Have a great day,
Kan

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[Shio_Tamba]

> You may refer to an EEPROM data sheet for more details on that. For example, https://www.nxp.com/docs/en/data-sheet/NXH5104.pdf?pspll=1 .

This means implicitly that the PN5180 contains this EEPROM ?

[Kan_Li]

Hi @Shio_Tamba ,

No, you put too much interpretation on my answer. This data sheet is just helpful for you to understand the program cycle as well as the data retention time better.

Have a great day,
Kan

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Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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