Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
516
29.15.2 Clock Switching Waveforms
Figure 29-6.
Switch Master Clock from Slow Clock to PLLx Clock
Table 29-2.
Clock Switching Timings between Two PLLs (Worst Case)
Fro
m
PLLA Clock
PLLB Clock
To
PLLA Clock
2.5 x PLLA Clock +
4 x SLCK +
PLLACOUNT x SLCK
3 x PLLA Clock +
4 x SLCK +
1.5 x PLLA Clock
PLLB Clock
3 x PLLB Clock +
4 x SLCK +
1.5 x PLLB Clock
2.5 x PLLB Clock +
4 x SLCK +
PLLBCOUNT x SLCK
Slow Clock
LOCK
MCKRDY
Master Clock
Write PMC_MCKR
PLLx Clock