Advanced Configuration and Power Interface Specification

top of memory 704
ToString (Convert Buffer To String) 896
transactions, SMBus
data buffers 232, 668
status codes 663
transitioning
crashed systems 76, 77
device power states 942
Legacy mode to ACPI 84
power states 33, 62, 284, 289, 973
working to sleeping states 699
working to soft-off states 700
transparent events 65
transparent switching, device power states 28,
485
trap monitors 66
Trigger Mode flags 142
trip points, thermal 597
turning off See Mechanical Off
TVs 971
twenty-four bit memory range resource descriptor
format 350
Type 1 Opcodes, AML encoding 914
Type 2 Opcodes, AML encoding 915
U
UARTs, power management 946
Unicode (String To Unicode Conversion Macro)
899
Uninitialzed data type, ASL 789, 794
Unique ID (_UID) object 293
Unload (Unload Definition Block) 899
unnamed objects 216
unrelated device interference 67
upper case, ASL names 785
USB, power management 942, 943
user preferences
performance vs. energy conservation 52,
601
power button 34
user-visible power states 33
UUID (Convert String to UUID Macro) 896
V
value-added hardware
enabling OSPM 59
registers 93
Variable List 753
VCR-style ejection mechanism 331
vendor defined large resource descriptor format
351
vendor defined resource data types 351
vendor defined small resource descriptor format
348
VendorLong Long Vendor-Defined Descriptor
macro) 900
VendorShort Vendor Defined Resource Descriptor
Macro) 900
VESA specifications 942
VGA 971, 974
video controllers, power management 947
Video Electronics Standards Associations (VE-
SA) 942
Video POST Options (_VPO) 976
virtual data objects 819
virtual registers 225, 228, 229, 663, 668
visible states
global system 24
W
Wait (Wait for a Synchronization Event) 901
WAK_STS (Wake Status) 81, 87
wake frame events 960
waking
_WAK control method 415
audio devices 946
COM ports 947
device power resource object (_PRW) 400
devices 944
disabling system-waking devices 402
display devices 952
initialization 700
input devices 955
latency time 33, 284, 289, 973
lid switch 98
logic controlling 81
modem devices 958
network devices 959
OS operations 40
Version 6.0 April, 2015 1011