Pre-Production
WM8310
22.1
22.2
GENERAL DESCRIPTION............................................................................. 137
LED DRIVER CONTROL................................................................................ 137
22.2.1
OTP PROGRAM STATUS .................................................................................................137
POWER STATE STATUS..................................................................................................138
CHARGER STATUS ..........................................................................................................138
LED DRIVER MANUAL MODE ..........................................................................................138
22.2.2
22.2.3
22.2.4
22.3
LED DRIVER CONNECTIONS....................................................................... 140
23 INTERRUPT CONTROLLER .................................................................... 141
23.1
23.2
PRIMARY INTERRUPTS ............................................................................... 142
SECONDARY INTERRUPTS......................................................................... 144
23.2.1
23.2.2
POWER STATE INTERRUPT............................................................................................144
THERMAL INTERRUPTS ..................................................................................................145
GPIO INTERRUPTS ..........................................................................................................145
ON PIN INTERRUPTS.......................................................................................................145
WATCHDOG INTERRUPTS..............................................................................................146
RESERVED........................................................................................................................146
RESERVED........................................................................................................................146
AUXADC INTERRUPTS ....................................................................................................146
POWER PATH MANAGEMENT INTERRUPTS.................................................................147
23.2.3
23.2.4
23.2.5
23.2.6
23.2.7
23.2.8
23.2.9
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
24.2
24.3
24.4
RESETS ......................................................................................................... 152
HARDWARE RESET...................................................................................... 154
SOFTWARE RESET ...................................................................................... 154
SUPPLY VOLTAGE MONITORING ............................................................... 156
25 WATCHDOG TIMER ................................................................................. 158
26 TEMPERATURE SENSING ...................................................................... 160
27 VOLTAGE AND CURRENT REFERENCES............................................. 161
27.1
27.2
VOLTAGE REFERENCE (VREF)................................................................... 161
CURRENT REFERENCE (IREF) ................................................................... 161
28 REGISTER MAP OVERVIEW ................................................................... 162
29 REGISTER BITS BY ADDRESS............................................................... 169
30 APPLICATIONS INFORMATION.............................................................. 277
30.1
30.2
30.3
30.4
30.5
30.6
30.7
TYPICAL CONNECTIONS ............................................................................. 277
VOLTAGE AND CURRENT REFERENCE COMPONENTS.......................... 278
DC-DC BUCK CONVERTER EXTERNAL COMPONENTS........................... 278
DC-DC (STEP-UP) CONVERTER EXTERNAL COMPONENTS................... 281
LDO REGULATOR EXTERNAL COMPONENTS .......................................... 283
BATTERY TEMPERATURE MONITORING COMPONENTS........................ 284
PCB LAYOUT................................................................................................. 287
31 PACKAGE DIAGRAM............................................................................... 288
32 IMPORTANT NOTICE............................................................................... 289
33 REVISION HISTORY................................................................................. 290
PP, May 2012, Rev 3.1
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
