Freescale Semiconductor /MKW21Z4 /DCDC /REG3

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Interpret as REG3

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (0)DCDC_VDD1P8CTRL_TRG 0 (0)DCDC_VDD1P5CTRL_TRG_BUCK 0 (0)DCDC_VDD1P5CTRL_TRG_BOOST 0DCDC_VDD1P5CTRL_ADJTN 0 (DCDC_MINPWR_DC_HALFCLK_PULSED)DCDC_MINPWR_DC_HALFCLK_PULSED 0 (DCDC_MINPWR_DOUBLE_FETS_PULSED)DCDC_MINPWR_DOUBLE_FETS_PULSED 0 (DCDC_MINPWR_HALF_FETS_PULSED)DCDC_MINPWR_HALF_FETS_PULSED 0 (DCDC_MINPWR_DC_HALFCLK)DCDC_MINPWR_DC_HALFCLK 0 (DCDC_MINPWR_DOUBLE_FETS)DCDC_MINPWR_DOUBLE_FETS 0 (DCDC_MINPWR_HALF_FETS)DCDC_MINPWR_HALF_FETS 0 (DCDC_VDD1P5CTRL_DISABLE_STEP)DCDC_VDD1P5CTRL_DISABLE_STEP 0 (DCDC_VDD1P8CTRL_DISABLE_STEP)DCDC_VDD1P8CTRL_DISABLE_STEP

DCDC_VDD1P5CTRL_TRG_BOOST=0, DCDC_VDD1P8CTRL_TRG=0, DCDC_VDD1P5CTRL_TRG_BUCK=0

Description

DCDC REGISTER 3

Fields

DCDC_VDD1P8CTRL_TRG

Target value of VDD1P8, 25 mV each step in two ranges, from 0x00 to 0x11 and 0x20 to 0x3F.

0 (0): 1.65 V

6 (110): 1.8 V

17 (10001): 2.075 V

32 (100000): 2.8 V

52 (110100): 3.3 V

63 (111111): 3.575 V

DCDC_VDD1P5CTRL_TRG_BUCK

Target value of VDD1P5 in buck mode, 25 mV each step from 0x00 to 0x0F

0 (0): 1.275 V

9 (1001): 1.5 V

15 (1111): 1.65 V

DCDC_VDD1P5CTRL_TRG_BOOST

Target value of VDD1P5 in boost mode, 25 mV each step from 0x00 to 0x0F

0 (0): 1.275 V

9 (1001): 1.5 V

15 (1111): 1.65 V

21 (10101): 1.8 V

DCDC_VDD1P5CTRL_ADJTN

Adjust value of duty cycle when switching between VDD1P5 and VDD1P8. The unit is 1/32 or 3.125%.

DCDC_MINPWR_DC_HALFCLK_PULSED

Set DCDC clock to half frequency for the Pulsed mode.

DCDC_MINPWR_DOUBLE_FETS_PULSED

Use double switch FET for the Pulsed mode.

DCDC_MINPWR_HALF_FETS_PULSED

Use half switch FET for the Pulsed mode.

DCDC_MINPWR_DC_HALFCLK

Set DCDC clock to half frequency for the continuous mode.

DCDC_MINPWR_DOUBLE_FETS

Use double switch FET for the continuous mode.

DCDC_MINPWR_HALF_FETS

Use half switch FET for the continuous mode.

DCDC_VDD1P5CTRL_DISABLE_STEP

Disable stepping for VDD1P5. Must set this bit before enter low power modes.

DCDC_VDD1P8CTRL_DISABLE_STEP

Disable stepping for VDD1P8. Must set this bit before enter low power modes.

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