19.5.2 Control B
| Name: | CTRLB |
| Offset: | 0x01 |
| Reset: | Loaded from fuse |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| LVL[2:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | x | x | x | |
Bits 2:0 – LVL[2:0] BOD Level
This bit field controls the BOD threshold level.
The Reset value is loaded from the BOD Level (LVL) bits in the BOD Configuration Fuse (FUSE.BODCFG).
Note:
- Refer to the Reset, WDT, Oscillator, Start-up Timer, Power-up Timer, Brown-out Detector Specifications section for BOD level characterization
- BODLEVEL0 will only
be enabled during chip erase. In ordinary operation, writing
0x0to this bit field will be the same as disabling the BOD - Values in the Description column are typical values. Refer to the Electrical Characteristics section for further details
| Value | Name | Typical Values |
|---|---|---|
0x0 | BODLEVEL0 | 1.75V |
0x1 | BODLEVEL1 | 1.90V |
0x2 | BODLEVEL2 | 2.60V |
0x3 | BODLEVEL3 | 4.30V |
Other | — | Reserved |