18.5.1 Control A

Name: CTRLA
Offset: 0x00
Reset: Loaded from fuse
Property: Configuration Change Protection

Bit 76543210 
    SAMPFREQACTIVE[1:0]SLEEP[1:0] 
Access RRRR/WR/W 
Reset xxxxx 

Bit 4 – SAMPFREQ Sample Frequency

This bit selects the BOD sample frequency.

The Reset value is loaded from the SAMPFREQ bit in FUSE.BODCFG. This bit is under Configuration Change Protection (CCP).

ValueDescription
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 bits in FUSE.BODCFG.
ValueDescription
0x0 Disabled
0x1 Enabled
0x2 Sampled
0x3 Enabled with wake-up halted until BOD is ready

Bits 1:0 – SLEEP[1:0] Sleep

These bits select the BOD operation mode when the device is in Standby or Power-Down Sleep mode. The Reset value is loaded from the SLEEP bits in FUSE.BODCFG.

These bits are under Configuration Change Protection (CCP).

ValueDescription
0x0 Disabled
0x1 Enabled
0x2 Sampled
0x3 Reserved