WM8311 datasheet(5/302 Pages) WOLFSON

5 / 302 page

Pre-Production

WM8311

PP, May 2012, Rev 3.1

12.6

SOFTWARE SCRATCH REGISTER................................................................ 48

13 CLOCKING AND OSCILLATOR CONTROL .............................................. 49

13.1

GENERAL DESCRIPTION ............................................................................... 49

13.2

CRYSTAL OSCILLATOR ................................................................................. 51

13.3

FREQUENCY LOCKED LOOP (FLL)............................................................... 52

13.3.1

FLL AUTO MODE ................................................................................................................56

14 INSTANTCONFIG™ (ICE) AND OTP MEMORY CONTROL...................... 57

14.1

GENERAL DESCRIPTION ............................................................................... 57

14.2

ICE AND OTP MEMORY DEFINITION ............................................................ 57

14.3

BOOTSTRAP (START-UP) FUNCTION........................................................... 58

14.3.1

START-UP FROM OTP MEMORY ......................................................................................58

14.3.2

START-UP FROM ICE MEMORY (DEVELOPMENT MODE)..............................................59

14.3.3

START-UP FROM DCRW REGISTER SETTINGS .............................................................59

14.3.4

EXTERNAL ICE MEMORY CONNECTION .........................................................................59

14.4

OTP / ICE MEMORY CONTROL...................................................................... 60

14.4.1

ENTERING / EXITING THE PROGRAM STATE .................................................................61

14.4.2

OTP / ICE READ COMMAND ..............................................................................................61

14.4.3

OTP WRITE COMMAND .....................................................................................................61

14.4.4

OTP VERIFY COMMAND ....................................................................................................62

14.4.5

OTP FINALISE COMMAND .................................................................................................63

14.4.6

OTP CONTROL REGISTER ................................................................................................63

14.5

OTP / ICE INTERRUPTS ................................................................................. 64

14.6

DCRW MEMORY CONTENTS......................................................................... 65

14.6.1

DCRW PAGE 0 ....................................................................................................................65

14.6.2

DCRW PAGE 1 ....................................................................................................................65

14.6.3

DCRW PAGE 2 ....................................................................................................................66

14.6.4

DCRW PAGE 3 ....................................................................................................................67

14.6.5

DCRW PAGE 4 ....................................................................................................................69

15 POWER MANAGEMENT ............................................................................ 70

15.1

GENERAL DESCRIPTION ............................................................................... 70

15.2

DC-DC CONVERTER AND LDO REGULATOR CONTROL............................ 70

15.3

TIMESLOT CONTROL AND HARDWARE ENABLE (GPIO) CONTROL......... 71

15.4

OPERATING MODE CONTROL ...................................................................... 72

15.4.1

DC-DC SYNCHRONOUS BUCK CONVERTERS................................................................72

15.4.2

DC-DC BOOST CONVERTERS ..........................................................................................72

15.4.3

LDO REGULATORS ............................................................................................................72

15.5

OUTPUT VOLTAGE CONTROL ...................................................................... 73

15.5.1

DC-DC SYNCHRONOUS BUCK CONVERTERS................................................................73

15.5.2

DC-DC BOOST CONVERTERS ..........................................................................................73

15.5.3

LDO REGULATORS 1-5 AND LDO7 ...................................................................................73

15.5.4

LDO REGULATOR 11..........................................................................................................73

15.6

DC-DC SYNCHRONOUS BUCK CONVERTER CONTROL............................ 74

15.7

DC-DC BOOST CONVERTER CONTROL....................................................... 75

15.8

LDO REGULATOR CONTROL ........................................................................ 75

15.9

HARDWARE CONTROL (GPIO)...................................................................... 75

15.10 FAULT PROTECTION...................................................................................... 76

15.11 MONITORING AND FAULT REPORTING ....................................................... 77

15.12 POWER MANAGEMENT REGISTER DEFINITIONS ...................................... 77

15.12.1

DC-DC CONVERTER AND LDO REGULATOR ENABLE ...................................................77

15.12.2

DC-DC SYNCHRONOUS BUCK CONVERTER CONTROL................................................78

15.12.3

DC-DC BOOST CONVERTER CONTROL ..........................................................................83

15.12.4

LDO REGULATOR CONTROL ............................................................................................84

15.12.5

EXTERNAL POWER ENABLE (EPE) CONTROL................................................................91

15.12.6

MONITORING AND FAULT REPORTING...........................................................................92

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