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WM8311 Datasheet(PDF) 7 Page - Wolfson Microelectronics plc

Part # WM8311
Description  Processor Power Management Subsystem
PDF  302 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8311 Datasheet(HTML) 7 Page - Wolfson Microelectronics plc

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Pre-Production
WM8311
w
PP, May 2012, Rev 3.1
7
20.4 
DIGITAL RIGHTS MANAGEMENT ................................................................ 140 
20.5 
BACKUP MODE CLOCKING OPTIONS ........................................................ 140 
21  GENERAL PURPOSE INPUTS / OUTPUTS (GPIO) ................................ 141 
21.1 
GENERAL DESCRIPTION ............................................................................. 141 
21.2 
GPIO FUNCTIONS......................................................................................... 141 
21.3 
CONFIGURING GPIO PINS........................................................................... 143 
21.4 
GPIO INTERRUPTS....................................................................................... 147 
22  SYSTEM STATUS LED DRIVERS............................................................ 148 
22.1 
GENERAL DESCRIPTION ............................................................................. 148 
22.2 
LED DRIVER CONTROL................................................................................ 148 
22.2.1
 
OTP PROGRAM STATUS .................................................................................................148
 
22.2.2
 
POWER STATE STATUS ..................................................................................................149
 
22.2.3
 
CHARGER STATUS ..........................................................................................................149
 
22.2.4
 
MANUAL MODE.................................................................................................................150
 
22.3 
LED DRIVER CONNECTIONS....................................................................... 151 
23  INTERRUPT CONTROLLER .................................................................... 152 
23.1 
PRIMARY INTERRUPTS ............................................................................... 153 
23.2 
SECONDARY INTERRUPTS ......................................................................... 155 
23.2.1
 
POWER STATE INTERRUPT............................................................................................155
 
23.2.2
 
THERMAL INTERRUPTS ..................................................................................................156
 
23.2.3
 
GPIO INTERRUPTS ..........................................................................................................156
 
23.2.4
 
ON PIN INTERRUPTS .......................................................................................................157
 
23.2.5
 
WATCHDOG INTERRUPTS ..............................................................................................157
 
23.2.6
 
TOUCH PANEL DATA INTERRUPTS ...............................................................................158
 
23.2.7
 
TOUCH PANEL PEN DOWN INTERRUPTS .....................................................................158
 
23.2.8
 
AUXADC INTERRUPTS ....................................................................................................158
 
23.2.9
 
POWER PATH MANAGEMENT INTERRUPTS.................................................................159
 
23.2.10
  CURRENT SINK INTERRUPTS.........................................................................................160 
23.2.11
  REAL TIME CLOCK INTERRUPTS ...................................................................................160 
23.2.12
  OTP MEMORY INTERRUPTS...........................................................................................161 
23.2.13
  RESERVED........................................................................................................................161 
23.2.14
  BATTERY CHARGER INTERRUPTS................................................................................161 
23.2.15
  HIGH CURRENT INTERRUPTS........................................................................................162 
23.2.16
  UNDERVOLTAGE INTERRUPTS......................................................................................163 
24  RESETS AND SUPPLY VOLTAGE MONITORING .................................. 164 
24.1 
RESETS ......................................................................................................... 164 
24.2 
HARDWARE RESET...................................................................................... 166 
24.3 
SOFTWARE RESET ...................................................................................... 166 
24.4 
SUPPLY VOLTAGE MONITORING ............................................................... 168 
25  WATCHDOG TIMER ................................................................................. 170 
26  TEMPERATURE SENSING ...................................................................... 172 
27  VOLTAGE AND CURRENT REFERENCES ............................................. 173 
27.1 
VOLTAGE REFERENCE (VREF)................................................................... 173 
27.2 
CURRENT REFERENCE (IREF) ................................................................... 173 
28  REGISTER MAP OVERVIEW ................................................................... 174 
29  REGISTER BITS BY ADDRESS ............................................................... 181 
30  APPLICATIONS INFORMATION.............................................................. 284 
30.1 
TYPICAL CONNECTIONS ............................................................................. 284 
30.2 
VOLTAGE AND CURRENT REFERENCE COMPONENTS.......................... 285 
30.3 
DC-DC BUCK CONVERTER EXTERNAL COMPONENTS ........................... 285 
30.4 
DC-DC (STEP-UP) CONVERTER EXTERNAL COMPONENTS ................... 288 
30.5 
LDO REGULATOR EXTERNAL COMPONENTS .......................................... 290 
30.6 
BATTERY TEMPERATURE MONITORING COMPONENTS ........................ 291 



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