WM8310 datasheet(239/291 Pages) WOLFSON

239 / 291 page

Pre-Production

WM8310

PP, May 2012, Rev 3.1

239

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

9:8

LDO4_HWC_M

ODE [1:0]

LDO4 Hardware Control Operating Mode

00 = Low Power mode

01 = Turn converter off

10 = Low Power mode

11 = Set by LDO4_ON_MODE

LDO4_FLT

LDO4 Output float

0 = LDO4 output discharged when disabled

1 = LDO4 output floating when disabled

LDO4_SWI

LDO4 Switch Mode

0 = LDO mode

1 = Switch mode

LDO4_LP_MO

LDO4 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

R16498

(4072h)

LDO4 ON

Control

15:13

LDO4_ON_SL

OT [2:0]

000

LDO4 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

LDO4_ON_MO

LDO4 ON Operating Mode

0 = Normal mode

1 = Low Power mode

4:0

LDO4_ON_VS

EL [4:0]

0_0000

LDO4 ON Voltage select

0.9V to 1.6V in 50mV steps

1.7V to 3.3V in 100mV steps

00h = 0.90V

01h = 0.95V

…

0Eh = 1.60V

0Fh = 1.70V

…

1Eh = 3.20V

1Fh = 3.30V

WM8310 Datasheet(PDF) 239 Page - Wolfson Microelectronics plc

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