18.5.1 Control A
| Name: | CTRLA |
| Offset: | 0x00 |
| Reset: | Loaded from fuse |
| Property: | Configuration Change Protection |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SAMPFREQ | ACTIVE[1:0] | SLEEP[1:0] | |||||||
| Access | R | R | R | R/W | R/W | ||||
| Reset | x | x | x | x | x | ||||
Bit 4 – SAMPFREQ Sample Frequency
This bit controls the BOD sample frequency.
The Reset value is loaded from the SAMPFREQ bit in FUSE.BODCFG.
This bit is not under Configuration Change Protection (CCP).
| Value | Description |
|---|---|
| 0x0 | Sample frequency is 1 kHz |
| 0x1 | Sample frequency is 125 Hz |
Bits 3:2 – ACTIVE[1:0] Active
These bits select the BOD operation mode when the device is in Active or Idle mode.
The Reset value is loaded from the ACTIVE bit field in FUSE.BODCFG. This bit field is not under Configuration Change Protection (CCP).| Value | Name | Description |
|---|---|---|
| 0x0 | DIS | Disabled |
| 0x1 | ENABLED | Enabled in continuous mode |
| 0x2 | SAMPLED | Enabled in sampled mode |
| 0x3 | ENWAKE | Enabled in continuous mode. Execution is halted at wake-up until BOD is running |
Bits 1:0 – SLEEP[1:0] Sleep
| Value | Name | Description |
|---|---|---|
| 0x0 | DIS | Disabled |
| 0x1 | ENABLED | Enabled in continuous mode |
| 0x2 | SAMPLED | Enabled in sampled mode |
| 0x3 | - | Reserved |