8.8.2.2 Brown-Out Detector Configuration
The default value given in this fuse description is the factory-programmed value and may not be mistaken for the Reset value.
| Name: | BODCFG |
| Offset: | 0x01 |
| Reset: | 0x00 |
| Property: | - |
The bit values of this fuse register are written to the corresponding BOD configuration registers at the start-up.
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| LVL[2:0] | SAMPFREQ | ACTIVE[1:0] | SLEEP[1:0] | ||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | - | - | - | - | - | - | - | - | |
Bits 7:5 – LVL[2:0] BOD Level
This value is loaded into the LVL bit field of the BOD Control B (BOD.CTRLB) register during Reset.
Note: Values in the
Description column are typical values. Refer to the Electrical
Characteristics section for further details.
Note: BODLEVEL0 will only be enabled during chip erase. In
normal operation, writing ‘
0x0’ to this bit field will be the
same as disabling the BOD.| Value | Name | Description |
|---|---|---|
| 0x0 | BODLEVEL0 | 1.75V (BOD enabled only during chip erase. See the Electrical Characteristics section.) |
| 0x1 | BODLEVEL1 | 1.90V |
| 0x2 | BODLEVEL2 | 2.60V |
| 0x3 | BODLEVEL3 | 4.30V |
| other | - | Reserved |
Bit 4 – SAMPFREQ BOD Sample Frequency
| Value | Name | Description |
|---|---|---|
| 0x0 | 128HZ | The sample frequency is 128 Hz |
| 0x1 | 32HZ | The sample frequency is 32 Hz |
Bits 3:2 – ACTIVE[1:0] BOD Operation Mode in Active and Idle
| Value | Name | Description |
|---|---|---|
| 0x0 | DISABLE | BOD disabled |
| 0x1 | ENABLE | BOD enabled in continuous mode |
| 0x2 | SAMPLE | BOD enabled in sampled mode |
| 0x3 | ENABLEWAIT | Enabled in continuous mode with code execution halted until BOD is ready |
Bits 1:0 – SLEEP[1:0] BOD Operation Mode in Sleep
| Value | Name | Description |
|---|---|---|
| 0x0 | DISABLE | BOD disabled |
| 0x1 | ENABLE | BOD enabled in continuous mode |
| 0x2 | SAMPLE | BOD enabled in sampled mode |
| 0x3 | - | Reserved |