Datasheet

361
11011B–ATARM–21-Feb-12
SAM3N
• MOSCRCF: Main On-Chip RC Oscillator Frequency Selection
• MOSCXTST: Main Crystal Oscillator Start-up Time
Specifies the number of Slow Clock cycles multiplied by 8 for the Main Crystal Oscillator start-up time.
• MOSCSEL: Main Oscillator Selection
0 = The Main On-Chip RC Oscillator is selected.
1 = The Main Crystal Oscillator is selected.
• CFDEN: Clock Failure Detector Enable
0 = The Clock Failure Detector is disabled.
1 = The Clock Failure Detector is enabled.
Value Name Description
0x0 4MHZ
The Fast RC Oscillator Frequency is at 4 MHz (default)
0x1 8MHZ The Fast RC Oscillator Frequency is at 8 MHz
0x2 12MHZ The Fast RC Oscillator Frequency is at 12 MHz