Datasheet

114
32117D–AVR-01/12
AT32UC3C
8.6.17 8MHz / 1MHz RC Oscillator Control Register
Name: RCCR8
Access Type: Read/Write
Offset: 0x0048
Reset Value: 0x00000000
• FREQMODE: Frequency Mode
0: the RC8M RC oscillator will run at 8 MHz.
1: the RC8M RC oscillator will run at 1 MHz.
• RCOSC8_EN: RCOSC Enable
0: the RC8M RC oscillator is disabled.
1: the RC8M RC oscillator is enabled.
• FCD: Flash Calibration Done
Set to 1 when CALIB field has been updated by the Flash fuses after a reset.
0: The flash calibration will be redone after any reset.
1: The flash calibration will only be redone after a power-on reset.
• CALIB: Calibration Value
Calibration Value for the RC8M RC 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.
31 30 29 28 27 26 25 24
------FREQMODERCOSC8_EN
23 22 21 20 19 18 17 16
-------FCD
15 14 13 12 11 10 9 8
--------
76543210
CALIB[7:0]