Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Fiche De Données

928

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

To prevent any single software error that may corrupt SSC behavior, certain address spaces can be write protected by
setting the WPEN bit in the 

 (SSC_WPMR).

If a write access to the protected registers is detected, then the WPVS flag in the SSC Write Protect Status Register
(US_WPSR) is set and the field WPVSRC indicates in which register the write access has been attempted.

The WPVS flag is reset by writing the SSC Write Protect Mode Register (SSC_WPMR) with the appropriate access key,
WPKEY.

The protected registers are:

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