Advanced Configuration and Power Interface Specification

protocols 650, 662, 669
Read/Write Block (SMBBlock) protocol
672
Read/Write Byte (SMBByte) protocol 235,
671
Read/Write Quick (SMBQuick) 233, 669
Read/Write Word (SMBWord) protocol
235, 672
Send/Receive Byte (SMBSendReceive)
protocol 234, 670
slave addresses 563, 661
specifications 15
status codes 663
status register (SMB_STS) 646
transactions 663
virtual registers 663
SMBus devices 257
SMI
definition 23
embedded controller firmware 643
interrupt events 64, 84
SMM firmware 106
Soft-Off
behavior during 414, 698
definition 24, 28
properties 26
transitioning crashed systems to 77
transitioning to 63, 700
sources, power See power sources
SSDT 22, 137
Stall (Stall for a Short Time) 887
standards
device power states 38
Start Dependent functions resource descriptor
format 345
StartDependentFn Start Dependent Function
Resource Descriptor Macro) 887
StartDependentFnNoPri Start Dependent
Function Resource Descriptor Macro) 888
statements
ElseIf 829
If 829
Power Resource 391
Processor 427
statements, ASL 753
states See power states
static objects 220
Status (_STA) 393
Status (_STA) object 341
status bits
corresponding enable bits 96
functions 94
symbol 61
status codes, SMBus 663
status notification, Smart Battery 564
status register 45
status register (SMB_STS) 646
sticky status bit, definition 61
storage devices, power management 943, 962
Store (Store an Object) 888
storing results, ASL operators 792
Streamlined Advanced Programmable Interrupt
Controller See SAPIC
String (_STR) object 293
String data type, ASL 790, 794
strings, ASL 786
Subtract (Integer Subtract) 889
supplemental documentation 15
surprise-style removal 331, 341
Switch (Select Code To Execute Based On Expression)
889
switching, output devices 982
Sx states See Sleeping states
syntax
OperationRegion 223, 665
Power Resource statements 391
syntax, ASL 753
system context
definition 23
during emergency shutdown 50
S4 Sleeping state 697
sleep states lost in 28
System Control Interrupt See SCI
system description tables See tables
system events, general model 45
system indicators 497
Version 6.0 April, 2015 1009