Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet

SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

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The exception mask registers disable the handling of exceptions by the processor. Disable exceptions where they
might impact on timing critical tasks. 

To access the exception mask registers use the MSR and MRS instructions, or the CPS instruction to change the
value of PRIMASK or FAULTMASK. See 

, and 

 for more information.