In the sheet for Atmel SAM D20E / SAM D20G / SAM D20J (Atmel-42129P-SAM-D20_Datasheet_Complete-09/2016),
in the section 11.6.1. PAC0 Register Description:
In subsection 11.6.1.1. Write Protect Clear (p 47) there is a text saying "Writing a one to these bits will clear the Write Protect bit for the corresponding peripherals." (My underlining.) That makes sense.
In subsection 11.6.1.2. Write Protect Set (p 49) there is a text saying "Writing a one to these bits will clear the Write Protect bit for the corresponding peripherals." Clearly a copy/paste error, right? Or am I totally missing something?
All bit descriptions on p 49-50 seems to be wrong in this manner.
Same kind of error occurs in the PAC1 and PAC2 sections.