Structural proof for Watchdog timer(WDT).

[Roh]

I have a big issue about WDT during FDA 510K preparing.
I have to proof that WDT of nRF52832 is seperated structurally from main system.
since nRF52832 have such a seperated structure, I have to proof that the chip is robust to single fault condition.
help....

add: would be helpful anyone give the image of internal DIE and detail description to me.

[Sigurd]

Hi,

Here is the documention we have for the watchdog:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fwdt.html&anchor=concept_ywz_4xw_sr

Block diagram for the chip:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fblockdiagram.html&cp=4_2_0_2&anchor=overview

[Roh]

thank you for reply. but not enough information. (actually I know this information from datasheet already)

I need a clear image and document that distinguishes the internal structure and describes each part.

for example, such as a die image.

[Roh]

FDA documents will be submitted at the end of July. Is the data available before then?

If you can give me the document, I want you to hurry please.

[Sigurd]

Unfortunately, we don't have any more documents to share. It's an on-chip WDT, it's not physically separated from the rest of the logic on the chip.