at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 292

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

26.8.2
292
AT91SAM9G20 Preliminary
Clock Switching Waveforms
Figure 26-3. Switch Master Clock from Slow Clock to PLL Clock
Figure 26-4. Switch Master Clock from Main Clock to Slow Clock
Write PMC_MCKR
Write PMC_MCKR
Master Clock
Master Clock
Slow Clock
Slow Clock
Main Clock
PLL Clock
MCKRDY
MCKRDY
LOCK
6384B–ATARM–15-Dec-08