19.5.1 Control A
| Name: | CTRLA |
| Offset: | 0x00 |
| Reset: | 0x00 |
| 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 | 0 | 0 | 0 | 0 | 0 | ||||
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 | Name | Description |
|---|---|---|
| 0x0 | 128Hz | The sampling frequency is 128 Hz |
| 0x1 | 32Hz | The sampling frequency is 32 Hz |
Bits 3:2 – ACTIVE[1:0] Active
When the device is in Active or Idle sleep mode, these bits select the BOD operation mode.
The Reset value is loaded from the ACTIVE bits in FUSE.BODCFG.
These bits are not under Configuration Change Protection (CCP).
| Value | Name | Description |
|---|---|---|
| 0x0 | DISABLE | BOD disabled |
| 0x1 | ENABLED | BOD enabled in Continuous mode |
| 0x2 | SAMPLE |
BOD enabled in Sampled mode |
| 0x3 | ENABLEWAIT |
BOD enabled in Continuous mode. Execution is halted at wake-up until BOD is running. |
Bits 1:0 – SLEEP[1:0] Sleep
When the device is in Standby or Power-Down sleep mode, these bits select the BOD operation mode.
The Reset value is loaded from the SLEEP bits in FUSE.BODCFG.
| Value | Name | Description |
|---|---|---|
| 0x0 | DISABLE | BOD disabled |
| 0x1 | ENABLED | BOD enabled in Continuous mode |
| 0x2 | SAMPLE |
BOD enabled in Sampled mode |
| 0x3 | - |
Reserved |