WM8321 datasheet(76/253 Pages) WOLFSON

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WM8321

Production Data

PD, February 2012, Rev 4.0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

6:2

DC4_ON_VS

EL [6:2]

00000

Same as DC-DC3

1:0

DC4_ON_VS

EL [1:0]

Same as DC-DC3

R16487 (4067h)

DC4 SLEEP

Control

15:13

DC4_SLP_S

LOT [2:0]

000

Same as DC-DC1

9:8

DC4_SLP_M

ODE [1:0]

Same as DC-DC1

6:0

DC4_SLP_V

SEL [6:0]

000_0000

Same as DC-DC3

Table 33 DC-DC Converter Control

15.11.3 LDO REGULATOR CONTROL

The register controls for configuring the LDO Regulators 1-6 are defined in Table 34.

Note that the LDOn_ON_SLOT and LDOn_ON_VSEL fields may also be stored in the integrated OTP

memory. See Section 14 for details.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R16488 (4068h)

LDO1 Control

15:14

LDO1_ERR_

ACT [1:0]

LDO1 Error Action (Undervoltage)

00 = Ignore

01 = Shut down regulator

10 = Shut down system (Device

Reset)

11 = Reserved

Note that an Interrupt is always

raised.

12:11

LDO1_HWC

_SRC [1:0]

LDO1 Hardware Control Source

00 = Disabled

01 = Hardware Control 1

10 = Hardware Control 2

11 = Hardware Control 1 or 2

LDO1_HWC

_VSEL

LDO1 Hardware Control Voltage

select

0 = Set by LDO1_ON_VSEL

1 = Set by LDO1_SLP_VSEL

9:8

LDO1_HWC

_MODE

LDO1 Hardware Control Operating

Mode

00 = Low Power mode

01 = Turn converter off

10 = Low Power mode

11 = Set by LDO1_ON_MODE

LDO1_FLT

LDO1 Output float

0 = LDO1 output discharged when

disabled

1 = LDO1 output floating when

disabled

LDO1_SWI

LDO1 Switch Mode

0 = LDO mode

1 = Switch mode

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