Техническая Спецификация для Atmel SAM4S Xplained Pro Starter and Evaluation Kit ATSAM4S-XPRO ATSAM4S-XPRO
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Модели
ATSAM4S-XPRO
519
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
29.16 Register Write Protection
To prevent any single software error from corrupting PMC behavior, certain registers in the address space can be
write-protected by setting the WPEN bit in the
(PMC_WPMR).
If a write access to a write-protected register is detected, the WPVS flag in the
(PMC_WPSR) is set and the field WPVSRC indicates the register in which the write access has been
attempted.
The WPVS bit is automatically cleared after reading the PMC_WPSR.
The following registers can be write-protected:
The WPVS bit is automatically cleared after reading the PMC_WPSR.
The following registers can be write-protected: