Datasheet

104
32117D–AVR-01/12
AT32UC3C
• AGC: Automatic Gain Control
0: Disable the automatic gain control of the Oscillator.
1: Enable the automatic gain control of the Oscillator.
• GAIN: Oscillator Gain
Set the gain of the Oscillator.
• MODE: Oscillator Mode
0: External clock connected on XIN, XOUT can be used as an I/O (no crystal), Disable the Oscillator.
1: Enable the Oscillator.
Note that this register is protected by a lock. To write to this register the UNLOCK register has to be written first. Please
refer to the UNLOCK register description for details.
13 512 4.5 ms
14 1024 9 ms
15 Reserved Reserved
Table 8-6. Gain value for oscillators 0 and 1
GAIN crystal frequency
0< 2 MHz
1 between 2 and 10 MHz
2 between 10 and 16 MHz
3> 16 MHz
Table 8-5. Startup time for oscillators 0 and 1
STARTUP
Number of RC oscillator clock
cycle
Approximative Equivalent time
(RCSYS = 115 kHz)