Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
185
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
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