Advanced Configuration and Power Interface Specification

Figures
Figure 1-1 OSPM/ACPI Global System .................................................................................. 5
Figure 3-2 Global System Power States and Transitions ..................................................... 33
Figure 3-3 Example Modem and COM Port Hardware ......................................................... 42
Figure 3-4 Reporting Battery Capacity.................................................................................. 47
Figure 3-5 Remaining Battery Percent Formula ................................................................... 47
Figure 3-6 Re;maining Battery Life Formula ......................................................................... 48
Figure 3-7 Low Battery and Warning .................................................................................... 48
Figure 3-8 Thermal Zone ...................................................................................................... 51
Figure 4-9 Generic Hardware Feature Model ....................................................................... 60
Figure 4-10 Global States and Their Transitions .................................................................. 64
Figure 4-11 Example Event Structure for a Legacy/ACPI Compatible Event Model ............ 65
Figure 4-12 Block Diagram of a Status/Enable Cell.............................................................. 70
Figure 4-13 Example Fixed Hardware Feature Register Grouping....................................... 71
Figure 4-14 Register Blocks versus Register Groupings ...................................................... 71
Figure 4-15 Power Management Timer ................................................................................ 75
Figure 4-16 Fixed Power Button Logic.................................................................................. 77
Figure 4-17 Fixed Hardware Sleep Button Logic .................................................................. 79
Figure 4-18 Sleeping/Wake Logic......................................................................................... 81
Figure 4-19 RTC Alarm......................................................................................................... 82
Figure 4-20 Power Management Events to SMI/SCI Control Logic...................................... 84
Figure 4-21 Example of General-Purpose vs. Generic Hardware Events ............................ 95
Figure 4-22 Example Generic Address Space Lid Switch Logic........................................... 98
Figure 5-23 Root System Description Pointer and Table.................................................... 102
Figure 5-24 Description Table Structures ........................................................................... 102
Figure 5-25 APIC–Global System Interrupts....................................................................... 149
Figure 5-26 8259–Global System Interrupts ....................................................................... 155
Figure 5-27 MPST ACPI Table Overview ........................................................................... 172
Figure 5-28 Memory Power State Transitions .................................................................... 176
Figure 5-29 Image Offset .................................................................................................... 190
Figure 5-30 NVDIMM Firmware Interface Table Overview ................................................. 202
Figure 5-31 Example ACPI NameSpace ............................................................................ 214
Figure 5-32 AML Encoding ................................................................................................. 216
Figure 6-33 System Panel and Panel Origin Positions ....................................................... 284
Figure 6-34 Laptop Panel and Panel Origin Positions ........................................................ 284
Figure 6-35 Default Shape Definitions ................................................................................ 289
Figure 6-36 PLD Back Panel Rendering ............................................................................ 292
Figure 6-37 System Locality information Table................................................................... 326
Figure 6-38 Device Ejection Flow Example Using _OST.................................................... 339
Figure 7-39 Working / Sleeping State object evaluation flow.............................................. 417
Figure 8-40 Processor Power States .................................................................................. 420
Figure 8-41 Throttling Example........................................................................................... 421
Figure 8-42 Equation 1 Duty Cycle Equation.................................................................... 421
Figure 8-43 Example Control for the STPCLK#.................................................................. 422
Version 6.0
xliii