WM8311 datasheet(255/302 Pages) WOLFSON

255 / 302 page

Pre-Production

WM8311

PP, May 2012, Rev 3.1

255

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16491

(406Bh)

LDO2

Control

15:14

LDO2_ERR_A

CT [1:0]

LDO2 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

LDO2_HWC_S

RC [1:0]

LDO2 Hardware Control Source

00 = Disabled

01 = Hardware Control 1

10 = Hardware Control 2

11 = Hardware Control 1 or 2

LDO2_HWC_V

SEL

LDO2 Hardware Control Voltage select

0 = Set by LDO2_ON_VSEL

1 = Set by LDO2_SLP_VSEL

9:8

LDO2_HWC_M

ODE [1:0]

LDO2 Hardware Control Operating Mode

00 = Low Power mode

01 = Turn converter off

10 = Low Power mode

11 = Set by LDO2_ON_MODE

LDO2_FLT

LDO2 Output float

0 = LDO2 output discharged when disabled

1 = LDO2 output floating when disabled

LDO2_SWI

LDO2 Switch Mode

0 = LDO mode

1 = Switch mode

LDO2_LP_MO

LDO2 Low Power Mode Select

0 = 50mA (reduced quiescent current)

1 = 20mA (minimum quiescent current)

Selects which Low Power mode is used in ON, SLEEP,

or under HWC modes.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16492

(406Ch)

LDO2 ON

Control

15:13

LDO2_ON_SL

OT [2:0]

000

LDO2 ON Slot select

000 = Do not enable

001 = Enable in Timeslot 1

010 = Enable in Timeslot 2

011 = Enable in Timeslot 3

100 = Enable in Timeslot 4

101 = Enable in Timeslot 5

110 = Controlled by Hardware Enable 1

111 = Controlled by Hardware Enable 2

LDO2_ON_MO

LDO2 ON Operating Mode

0 = Normal mode

1 = Low Power mode

WM8311 Datasheet(PDF) 255 Page - Wolfson Microelectronics plc

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