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How to configure Register (Configuration and Session) from RF Interface.

Question asked by KF Choong on Oct 17, 2016
Latest reply on Nov 16, 2016 by KF Choong

Hi Sir / Madam,

 

I am developing NFC application using NXP NTAG 1K, datasheet NT3H1101/NT3H1201.pdf. 

When I am a Peer NFC device, may I know how can I read and write configuration register and session register from RF Interface ?  I am unable to find detail from the above datasheet.  

 

For read NXP NTAG Register (configuration and session) from RF interface:

Is it the same method as reading the mapped SRAM ?  in which we just need to read from the memory address. 0xF8, 0xF9, 0xE8, and 0xE9.

 

For write NXP NTAG Register (configuration and session) from RF interface:

Is it the same method as writing the mapped SRAM ?  in which we just need to write to the memory address. 0xF8, 0xF9, 0xE8, and 0xE9.

 

 

Or, is it we need to follow the method I2C interface read and write to its Configuration and Session Register ? If follow this way, may I know how to fill in the SA address ?

 

Lastly, may I know how can I modify the Register Lock bytes ?  It says that " Once set to 1b, cannot to reset to 0b anymore".  May I know what does this means ?  If I accidentally set to 1b, then how can I reset it back to 0b ?  Or the chip is consider scrapped ?

 

 

Thank you for your advice.

 

Please advice soon.

 

Cheers,

KF Choong

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