WM8352 datasheet(292/336 Pages) WOLFSON

292 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

292

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

Reset by state machine. Default held in metal mask.

DC3_ENA

DCDC3 converter enable

0 = disabled

1 = enabled

Note: internal conditions may prevent the converter

from actually switching on - see DCDC/LDO Status

Reset by state machine. Default held in metal mask.

DC2_ENA

DCDC2 converter enable

0 = disabled

1 = enabled

Note: internal conditions may prevent the converter

from actually switching on - see DCDC/LDO Status

Reset by state machine. Default held in metal mask.

DC1_ENA

DCDC1 converter enable

0 = disabled

1 = enabled

Note: internal conditions may prevent the converter

from actually switching on - see DCDC/LDO Status

Reset by state machine. Default held in metal mask.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R177 (B1h)

DCDC

Active

options

DCDC_DISCLKS

DCDC clock enable

0 = DCDC Clocks enabled

1 = DCDC1, 3, 4 and 6 clocks disabled.

Note: This feature is useful in reducing the current

consumption if all 4 DCDCs are in LDO mode. The

requirement is to put them in LDO mode and then at

least 100us is required before clocks are disabled.

Again while coming out of LDO mode first enable the

clocks and then at least 100us wait and then come

out of LDO mode. This can only be used if the

processor is alive to set and unset this bit.

Reset by state machine.

13:12

PUTO[1:0]

Power up time out value for all converters

00 = 0.5ms

01 = 2ms

10 = 32ms

11 = 256ms

Reset by state machine.

DC6_ACTIVE

DC-DC 6 Active mode

0 = Select Standby mode

1 = Select Active mode

Reset by state machine.

DC4_ACTIVE

DC-DC 4 Active mode

0 = Select Standby mode

1 = Select Active mode

Reset by state machine.

DC3_ACTIVE

DC-DC 3 Active mode

0 = Select Standby mode

1 = Select Active mode

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