12.5.2 Voltage Regulator Control Register

Name: VREGCTRL
Offset: 0x01
Reset: 0x00
Property: Configuration Change Protection

Bit 76543210 
    HTLLEN PMODE[2:0] 
Access R/WR/WR/WR/W 
Reset 0000 

Bit 4 – HTLLEN High-Temperature Low Leakage Enable

This bit controls whether the current leakage is reduced or not when operating at temperatures above 70°C.

Warning:
  1. If entering the Standby sleep mode, this bit must be ‘0’.
  2. This will only have an effect when PMODE is set to AUTO and must only be used for the Power-Down sleep mode.
  3. The TWI address match and CCL wake-up sources must be disabled before writing this bit to ‘1’.
ValueNameDescription
0 OFF High-temperature low leakage disabled(1)
1 ON High-temperature low leakage enabled(2,3)

Bits 2:0 – PMODE[2:0] Power Mode Select

This bit field controls the drive strength of the voltage regulator.

ValueNameDescription
0x0 AUTO The regulator will run with maximum performance in active/idle mode unless the 32.768 kHz oscillator source is selected. Power saving in deep sleep modes.
0x1 FULL Maximum performance voltage regulator drive strength in all modes. Faster start-up from sleep modes.
Other - Reserved