18.5.1 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.
| Value | Name | Description |
|---|---|---|
| 0x0 | 128HZ | Sample frequency is 128 Hz |
| 0x1 | 32HZ | Sample 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 | ENABLE | 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
| Value | Name | Description |
|---|---|---|
| 0x0 | DISABLE | BOD disabled |
| 0x1 | ENABLE | BOD enabled in Continuous mode |
| 0x2 | SAMPLE | BOD enabled in Sampled mode |
| 0x3 | - | Reserved |