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2411441_en-US

2411441_en-US

NTAG 224/223 Documentation

Hello,

I'm going through the configuration page documentation for the 223/224  TT & Non-TT tags, but the 223 DNA (non-TT) configuration seems to be significantly different than the other tags, and the SUNCMAC_KEY is floating in 2 separate areas. This looks like an error with the documentation, and I just want to bring it to your attention so you can either resolve the issue, or clarify any misunderstandings.

Best Regards,
Tino


223 TT223 TT223 TT223223223224224224224 TT224 TT224 TT

Re: NTAG 224/223 Documentation

Hello @TinoF 

The memory layout for different products is not necessarily exactly the same: The NTAG 224 DNA has 64 bytes more user memory than the 223 DNA, and it also has an additional AES mutual authentication key area. Therefore, the starting address of SUNCMAC_KEY has moved from 34h to 44h, which is a reasonable product design difference and not a documentation error.

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