SAM3SD8C Atmel Corporation, SAM3SD8C Datasheet - Page 459
SAM3SD8C
Manufacturer Part Number
SAM3SD8C
Description
Manufacturer
Atmel Corporation
- Current page: 459 of 1143
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25.1.15
459
459
SAM3S8/SD8
SAM3S8/SD8
Write Protection Registers
Figure 25-12. Change PLLx Programming
Figure 25-13. Programmable Clock Output Programming
To prevent any single software error that may corrupt PMC behavior, certain address spaces
can be write protected by setting the WPEN bit in the
(PMC_WPMR).
Write PMC_SCDR
Write PMC_SCER
Write PMC_PCKx
Write CKGR_PLLxR
PCKx Output
PLLx Clock
Master Clock
PCKRDY
PLLx Clock
Slow Clock
MCKRDY
LOCKx
PLL Clock is selected
PCKx is enabled
Slow Clock
“PMC Write Protect Mode Register”
PCKx is disabled
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
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