Datasheet

107

32117D–AVR-01/12

AT32UC3C

8.6.11 Bandgap Calibration Register

Name: BGCR

Access Type: Read/Write

Offset: 0x0030

Reset Value: 0x00000000

• SFV: Store Final Value

0: The register is read/write.

1: The register is read-only, to protect against further accidental writes.

• FCD: Flash Calibration Done

Set to 1 when the 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 not be redone after a BOD18 reset.

• CALIB: Calibration value

Calibration value for Bandgap. See Electrical Characteristics for voltage values.

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

SFV-------

23 22 21 20 19 18 17 16

-------FCD

15 14 13 12 11 10 9 8

--------

7654321

----- CALIB