L9963E meaning of VTREF_BIST_FAIL flag

[abtjmehmet]

Hi,

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

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

[Max VIZZINI · Accepted solution]

Hi,

It should read:

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

Best Regards,

AutoDevKit Team

[abtjmehmet]

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

[Max VIZZINI]

Yes, VTREF_COMP_BIST_FAIL