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abtjmehmet
abtjmehmet
Associate
September 18, 2024
Solved

L9963E meaning of VTREF_BIST_FAIL flag

  • September 18, 2024
  • 1 reply
  • 2918 views

Hi,

The screenshot below is from the L9963E datasheet DS13636, page 125. Is the description for VTREF_BIST_FAIL here a typo?

abtjmehmet_0-1726654040604.png

It matches exactly the description of a the VCOM_COMP_BIST_FAIL bit in the BIST_COMP register, which makes more sense. I note there is also a VTREF_COMP_BIST_FAIL bit in the BIST_COMP register, how does VTREF_BIST_FAIL compare to this flag?

I can't find any other references to VTREF_BIST_FAIL in the rest of the datasheet.

Best, Jack

Best answer by Max VIZZINI

Hi,

This Community is dedicated to application developments of AutoDevKit, therefore it is not the right place to request datasheet confirmations. We can only share what we did according to our experience...

For formal datasheet questions please refer to the online support on st.com or to our sales and distributor partners.

Thank you for your understanding.

Best Regards,

AutoDevKit team

1 reply

Max VIZZINI
Max VIZZINI
Technical Moderator
September 24, 2024

Hi,

 

It should read:

VTREF_COM_BIST_FAIL   -->  if the BIST on the VTREF UV/OV comparator fails

Best Regards,

AutoDevKit Team

abtjmehmet
abtjmehmetAuthor
Associate
September 25, 2024

Hi Max, thanks for your reply.

Just to be totally clear, do you mean VTREF_COM_BIST_FAIL or VTREF_COMP_BIST_FAIL? I only ask because the term "COM" is also used elsewhere and if this refers to a comparator BIST, it would make sense if the name contained the term "COMP".

Best, Jack

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