> -----Original Message-----
> From: Wouter van Ooijen [SMTP:wouter@VOTI.NL]
> Sent: Thursday, November 21, 2002 12:52 PM
> To:   PICLIST@mitvma.mit.edu
> Subject:      [PIC]: what are the 12F bandgap calibration bits for?
>
> The 12F PICs have two bandgap calibration bits in the fuses word that
> should be saved/restored by the progranmmer when the chip is erased.
>
> Has anyone found a clue as to what these bits are used for by the chip?
>
I would imagine that the only bandgap reference is that used by the A/D
converter.  These bits probably trim the reference to give to the required
accuracy.

Mike

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