WM8352 datasheet(305/336 Pages) WOLFSON

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Production Data

WM8352

PD, February 2011, Rev 4.4

305

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R199 (C7h)

Limit Switch

Control

15:14

LS_ERRACT[1:0]

Current limit detection behaviour

00 = ignore

01 = disable switch

10 = shut down system

11 = shut down system

Reset by state machine. Default held in metal mask.

13:10

LS_ENSLOT[3:0]

0000

Time slot for Limit Switch start-up

0000 = Disabled (do not start up)

0001 = Start-up in time slot 1

… (total 14 slots available)

1110 = Start-up in time slot 14

1111 = Start-up on entering ACTIVE

Reset by state machine. Default held in metal mask.

9:6

LS_SDSLOT[3:0]

0000

Time slot for Limit Switch shutdown.

0000 = Shut down on entering OFF

0001 = Shutdown in time slot 1

…. (total 14 slots available)

1110 = Shutdown in time slot 14

1111 = Shut down on entering OFF

LS_HIB_MODE

Limit switch hibernate mode setting

0 = disabled

1 = leave setting as in Active mode

LS_HIB_PROT

Controls the bulk detection circuit when Limit Switch

is disabled in Hibernate mode.

0 = bulk detection disabled

1 = bulk detection enabled

LS_PROT

Controls the bulk detection circuit when Limit Switch

is disabled in Active mode.

0 = bulk detection disabled

1 = bulk detection enabled

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R200 (C8h)

LDO1

Control

LDO1_SWI

LDO1 Regulator mode

0 = LDO voltage regulator

1 = Current-limited switch (no voltage regulation,

LDO1_VSEL has no effect)

Reset by state machine. Default held in metal mask.

LDO1_OPFLT

Enable discharge of LDO1 outputs when LDO1 is

disabled

0 = Enabled - Output to be discharged

1 = Disabled - Output is left floating

Note - if LDO Regulators 1, 2, 3 and 4 are all

disabled, then the outputs will all be discharged,

regardless of the LDOn_OPFLT bit.

4:0

LDO1_VSEL[4:0]

1_1100

0_0010

1_1100

1_1101

LDO1 Regulator output voltage (when LDO1_SWI=0)

1 1111 = 3.3V

… (100mV steps)

1 0000 = 1.8V

0 1111 = 1.65V

… (50mV steps)

WM8352 Datasheet(PDF) 305 Page - Wolfson Microelectronics plc

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