Datasheet

184
SAM9G15 [DATASHEET]
11052D–ATARM–31-Oct-12
Figure 22-5. Change PLLA Programming
Figure 22-6. Programmable Clock Output Programming
Slow Clock
Slow Clock
PLLA Clock
LOCKA
MCKRDY
Master Clock
Write CKGR_PLLAR
PLL Clock
PCKRDY
PCKx Output
Write PMC_PCKx
Write PMC_SCER
Write PMC_SCDR
PCKx is disabled
PCKx is enabled
PLL Clock is selected