WM8310CGEBSLASHV datasheet(7/291 Pages) WOLFSON

7 / 291 page

Pre-Production

WM8310

PP, May 2012, Rev 3.1

22.1

GENERAL DESCRIPTION ............................................................................. 137

22.2

LED DRIVER CONTROL................................................................................ 137

22.2.1

OTP PROGRAM STATUS .................................................................................................137

22.2.2

POWER STATE STATUS ..................................................................................................138

22.2.3

CHARGER STATUS ..........................................................................................................138

22.2.4

LED DRIVER MANUAL MODE ..........................................................................................138

22.3

LED DRIVER CONNECTIONS....................................................................... 140

23 INTERRUPT CONTROLLER .................................................................... 141

23.1

PRIMARY INTERRUPTS ............................................................................... 142

23.2

SECONDARY INTERRUPTS ......................................................................... 144

23.2.1

POWER STATE INTERRUPT............................................................................................144

23.2.2

THERMAL INTERRUPTS ..................................................................................................145

23.2.3

GPIO INTERRUPTS ..........................................................................................................145

23.2.4

ON PIN INTERRUPTS .......................................................................................................145

23.2.5

WATCHDOG INTERRUPTS ..............................................................................................146

23.2.6

RESERVED........................................................................................................................146

23.2.7

RESERVED........................................................................................................................146

23.2.8

AUXADC INTERRUPTS ....................................................................................................146

23.2.9

POWER PATH MANAGEMENT INTERRUPTS.................................................................147

23.2.10

CURRENT SINK INTERRUPTS.........................................................................................147

23.2.11

REAL TIME CLOCK INTERRUPTS ...................................................................................148

23.2.12

OTP MEMORY INTERRUPTS...........................................................................................148

23.2.13

RESERVED........................................................................................................................149

23.2.14

BATTERY CHARGER INTERRUPTS................................................................................149

23.2.15

HIGH CURRENT INTERRUPTS........................................................................................150

23.2.16

UNDERVOLTAGE INTERRUPTS......................................................................................151

24 RESETS AND SUPPLY VOLTAGE MONITORING .................................. 152

24.1

RESETS ......................................................................................................... 152

24.2

HARDWARE RESET...................................................................................... 154

24.3

SOFTWARE RESET ...................................................................................... 154

24.4

SUPPLY VOLTAGE MONITORING ............................................................... 156

25 WATCHDOG TIMER ................................................................................. 158

26 TEMPERATURE SENSING ...................................................................... 160

27 VOLTAGE AND CURRENT REFERENCES ............................................. 161

27.1

VOLTAGE REFERENCE (VREF)................................................................... 161

27.2

CURRENT REFERENCE (IREF) ................................................................... 161

28 REGISTER MAP OVERVIEW ................................................................... 162

29 REGISTER BITS BY ADDRESS ............................................................... 169

30 APPLICATIONS INFORMATION.............................................................. 277

30.1

TYPICAL CONNECTIONS ............................................................................. 277

30.2

VOLTAGE AND CURRENT REFERENCE COMPONENTS.......................... 278

30.3

DC-DC BUCK CONVERTER EXTERNAL COMPONENTS ........................... 278

30.4

DC-DC (STEP-UP) CONVERTER EXTERNAL COMPONENTS ................... 281

30.5

LDO REGULATOR EXTERNAL COMPONENTS .......................................... 283

30.6

BATTERY TEMPERATURE MONITORING COMPONENTS ........................ 284

30.7

PCB LAYOUT ................................................................................................. 287

31 PACKAGE DIAGRAM............................................................................... 288

32 IMPORTANT NOTICE ............................................................................... 289

33 REVISION HISTORY................................................................................. 290

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