Pre-Production
WM8311
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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PP, May 2012, Rev 3.1
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
