Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK データシート
製品コード
AT91SAM9X25-EK
185
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
22.12.2 Clock Switching Waveforms
Figure 22-3. Switch Master Clock from Slow Clock to PLL Clock
Figure 22-4. Switch Master Clock from Main Clock to Slow Clock
Slow Clock
LOCK
MCKRDY
Master Clock
Write PMC_MCKR
PLL Clock
Slow Clock
Main Clock
MCKRDY
Master Clock
Write PMC_MCKR