WM8310 datasheet(222/291 Pages) WOLFSON

222 / 291 page

WM8310

Pre-Production

PP, May 2012, Rev 3.1

222

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

DC1_FLT

DC-DC1 Output float

0 = DC-DC1 output discharged when disabled

1 = DC-DC1 output floating when disabled

5:4

DC1_SOFT_ST

ART [1:0]

DC-DC1 Soft-Start Control

(Duration in each of the 8 startup current limiting steps.)

00 = 32us steps

01 = 64us steps

10 = 128us steps

11 = 256us steps

1:0

DC1_CAP [1:0]

DC-DC1 Output Capacitor

00 = 4.7uF to 20uF

01 = Reserved

10 = 22uF to 47uF

11 = Reserved

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R16471

(4057h) DC1

Control 2

15:14

DC1_ERR_AC

T [1:0]

DC-DC1 Error Action (Undervoltage)

00 = Ignore

01 = Shut down converter

10 = Shut down system (Device Reset)

11 = Reserved

Note that an Interrupt is always raised.

12:11

DC1_HWC_SR

C [1:0]

DC-DC1 Hardware Control Source

00 = Disabled

01 = Hardware Control 1

10 = Hardware Control 2

11 = Hardware Control 1 or 2

DC1_HWC_VS

DC-DC1 Hardware Control Voltage select

0 = Set by DC1_ON_VSEL

1 = Set by DC1_SLP_VSEL

9:8

DC1_HWC_M

ODE [1:0]

DC-DC1 Hardware Control Operating Mode

00 = Forced Continuous Conduction Mode

01 = Disabled

10 = LDO Mode

11 = Hysteretic Mode

6:4

DC1_HC_THR

[2:0]

000

DC-DC1 High Current threshold

000 = 125mA

001 = 250mA

010 = 375mA

011 = 500mA

100 = 625mA

101 = 750mA

110 = 875mA

111 = 1000mA

DC1_HC_IND_

ENA

DC-DC1 High Current detect enable

0 = Disabled

1 = Enabled

WM8310 Datasheet(PDF) 222 Page - Wolfson Microelectronics plc

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