Apple PowerBook 520 Technical Information Page 125
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CHAPTER 6
Power Manager Interface
About the Power Manager Interface 111
ASSEMBLY-LANGUAGE INFORMATION
The trap is _PowerMgrDispatch ($A09E). The selector value for
FullProcessorSpeed is 18 ($12) in the low word of register D0. The Boolean
result is returned in the low byte of register D0.
SetProcessorSpeed 6
You can use the SetProcessorSpeed routine to set the clock speed the microprocessor
will use the next time it is restarted.
Boolean SetProcessorSpeed(Boolean fullSpeed);
DESCRIPTION
The SetProcessorSpeed routine sets the processor speed that the computer will use
the next time it is restarted. If the value of fullSpeed is set to true, the processor will
start up at its full speed (the speed returned by MaximumProcessorSpeed, described
on page 109). If the value of fullSpeed is set to false, the processor will start up at its
reduced speed.
For PowerBook models that support changing the processor speed dynamically, the
processor speed will also be changed. If the speed is actually changed,
SetProcessorSpeed will return true; if the speed isn’t changed, it will return false.
ASSEMBLY-LANGUAGE INFORMATION
The trap is _PowerMgrDispatch ($A09E). The selector value for
SetProcessorSpeed is 19 ($13) in the low word of register D0. The Boolean
value to set is passed in the high word of register D0. The Boolean result is
returned in register D0.
GetSCSIDiskModeAddress 6
You can use the GetSCSIDiskModeAddress routine to find out the SCSI ID the
computer uses in SCSI disk mode.
short GetSCSIDiskModeAddress();
DESCRIPTION
The GetSCSIDiskModeAddress routine returns the SCSI ID that the computer uses
when it is started up in SCSI disk mode. The returned value is in the range 1 to 6.
- PowerBook 520 and 520c and 1
- PowerBook 540 and 540c 1
- Computers 1
- Contents 3
- I/O Features 4
- Expansion Modules 4
- Power Manager Interface 6
- Figures and Tables 7
- About This Developer Note 9
- PREFACE 10
- Typographical Conventions 0 11
- Standard Abbreviations 0 11
- Introduction 1 15
- Features 1 16
- Appearance 1 17
- 4 Appearance 18
- Configurations 1 19
- Peripheral Devices 1 19
- Compatibility Issues 1 20
- MacsBug Version 6.2.2 1 21
- Sound Sample Rates 1 21
- Architecture 2 23
- Processor/Memory Subsystem 2 24
- Architecture 25
- Processor/Memory Subsystem 11 25
- Input/Output Subsystem 2 26
- Power Manager IC 2 27
- Display Controller IC 2 28
- Combo IC 2 28
- Singer IC 2 28
- Ariel Video Output IC 2 28
- I/O Features 3 29
- Internal Hard Disk Drive 3 30
- Hard Disk Carrier Bracket 3 31
- Hard Disk Mounting Envelope 3 32
- Hard Disk Connector 3 32
- Signals on Connector J1 3 33
- Signals on Connector J2 3 34
- Internal Floppy Disk Drive 3 35
- Trackpad 3 36
- Keyboard 3 36
- Flat Panel Displays 3 37
- External Video Port 3 38
- Video Mirroring 3 39
- Video Monitors 3 39
- External Video Connector 3 40
- Monitor Sense Codes 3 40
- CHAPTER 3 41
- SCSI Port 3 42
- Serial Port 3 42
- SCSI Connectors 3 43
- Ethernet Port 3 44
- ADB Port 3 45
- Sound System 3 45
- Sound System 46
- Expansion Modules 4 47
- RAM Expansion Card 4 48
- Connector Pin Assignments 4 49
- Signal Descriptions 4 50
- Address Multiplexing 4 50
- RAM Expansion Card 37 51
- Signal name Description 51
- Banks of DRAM 4 52
- DRAM Device Requirements 4 53
- RAM Expansion Connector 4 54
- RAM Expansion Card Design 4 54
- RAM Expansion Card 41 55
- PDS Expansion Card 4 56
- PDS Expansion Card 43 57
- CHAPTER 4 58
- PDS Expansion Card 60
- PDS Power Consumption 4 63
- PDS Expansion Card 51 65
- Addressing Guidelines 4 66
- Timing Considerations 4 66
- PDS Card Shell 4 67
- PDS Card Connector 4 67
- PDS Card Design 4 68
- PDS Expansion Card 55 69
- Modem Expansion Card 4 70
- Modem Expansion Card 57 71
- Modem Expansion Card 72
- Modem Power 4 76
- Modem Card Connector 4 76
- Design of the Modem Card 4 76
- Modem Expansion Card 63 77
- DAA Interface Card 4 78
- DAA Connector 4 80
- DAA Interface Card 67 81
- The Multi-Country DAA Card 4 82
- DAA Interface Card 69 83
- Software 5 85
- ROM Software 5 86
- Power Manager Software 5 87
- Display Controller Software 5 87
- Sound Features 5 87
- Ethernet Driver 5 87
- PDS Support Software 5 88
- Support for Function Keys 5 88
- Intelligent Battery Support 5 88
- Trackpad Software 5 88
- System Software 5 89
- Selecting SVGA 5 90
- New Control Panels 5 91
- System Software 92
- Trackpad Control Panel 5 93
- Control Strip Control Panel 5 94
- AutoRemounter Control Panel 5 94
- Contents of Module Files 5 95
- Module Interface 5 95
- Module Reentrancy 5 96
- Message name 97
- number Description 97
- Utility Routines 5 100
- SBIsControlStripVisible 5 101
- SBShowHideControlStrip 5 101
- SBSafeToAccessStartupDisk 5 101
- SBLoadPreferences 5 102
- SBSavePreferences 5 102
- SBOpenModuleResourceFile 5 102
- SBGetDetachedIndString 5 103
- SBGetDetachIconSuite 5 103
- SBTrackpopupMenu 5 104
- SBTrackSlider 5 104
- SBShowHelpString 5 105
- SBGetBarGraphWidth 5 105
- SBDrawBarGraph 5 105
- Software 106
- Gestalt Selectors 5 107
- Power Manager Interface 6 109
- Things That May Change 6 110
- Checking for Routines 6 111
- CHAPTER 6 112
- PMSelectorCount 6 113
- PMFeatures 6 113
- GetSleepTimeout 6 114
- SetSleepTimeout 6 115
- GetHardDiskTimeout 6 115
- SetHardDiskTimeout 6 116
- HardDiskPowered 6 116
- SpinDownHardDisk 6 117
- IsSpindownDisabled 6 117
- SetSpindownDisable 6 117
- HardDiskQInstall 6 118
- HardDiskQRemove 6 119
- GetScaledBatteryInfo 6 119
- DESCRIPTION 120
- AutoSleepControl 6 121
- GetIntModemInfo 6 122
- SetIntModemState 6 123
- MaximumProcessorSpeed 6 123
- CurrentProcessorSpeed 6 124
- FullProcessorSpeed 6 124
- SetProcessorSpeed 6 125
- GetSCSIDiskModeAddress 6 125
- SetSCSIDiskModeAddress 6 126
- GetWakeupTimer 6 126
- SetWakeupTimer 6 127
- IsProcessorCyclingEnabled 6 128
- EnableProcessorCycling 6 128
- BatteryCount 6 129
- GetBatteryVoltage 6 129
- GetBatteryTimes 6 130
- V, W, X, Y, Z 142
- DEVELOPMENTAL EDITORS 144
- ILLUSTRATORS 144
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