Advanced Configuration and Power Interface Specification

ACPI Software Programming Model
Name Description Heading
_PRR
_PRS
Power Resource for Reset – executes a reset on the
associated device or devices.
Possible Resource Settings – returns a list of a device’s
possible resource settings.
Section 7.3.26 page 407
Section 6.2.12 page 322
_PRT Pci Routing Table – returns a list of PCI interrupt mappings. Section 6.2.13 page 322
_PRW Power Resources for Wake – returns a list of dependent Section 7.3.12 page 400
power resources for waking.
_PS0 Power State 0 – sets a device’s power state to D0 (device fully Section 7.3.2 page 396
on).
_PS1 Power State 1 – sets a device’s power state to D1. Section 7.3.3 page 396
_PS2 Power State 2 – sets a device’s power state to D2. Section 7.3.4 page 396
_PS3 Power State 3 – sets a device’s power state to D3 (device off). Section 7.3.5 page 397
_PSC Power State Current – returns a device’s current power state. Section 7.3.6 page 397
_PSD Power State Dependencies – returns processor P-State Section 8.4.6.5 page 474
dependencies.
_PSE Power State for Enumeration Section 7.3.14 page 402
_PSL Passive List – returns a list of passive cooling device objects. Section 11.4.10 page 614
_PSR Power Source – returns the power source device currently in Section 10.3.1 page 584
use.
_PSS Performance Supported States – returns a list of supported Section 8.4.6.2 page 470
processor performance states.
_PSV Passive – returns the passive trip point temperature. Section 11.4.11 page 614
_PSW Power State Wake – sets a device’s wake function. Section 7.3.14 page 402
_PTC Processor Throttling Control – returns throttling control and Section 8.4.5.1 page 462
status registers.
_PTP Power Trip Points – sets trip points for the Power Meter Section 10.4.2 page 588
device.
_PTS Prepare To Sleep – inform the platform of an impending sleep Section 7.4.1 page 408
transition.
_PUR Processor Utilization Request – returns the number of Section 8.5.1.1 page 494
processors that the platform would like to idle.
_PXM Proximity – returns a device’s proximity domain identifier. Section 6.2.14 page 324
_Qxx Query – Embedded Controller query and SMBus Alarm control Section 5.6.4.1 page 244
method.
_RBO Register Bit Offset – resource descriptor field. Section 19.2.8 page 778
_RBW Register Bit Width – resource descriptor field. Section 19.2.8 page 778
_RDI Resource Dependencies for Idle - returns the list of power
resource dependencies for system level low power idle states.
Section 8.5 page 493
_REG
_REV
Region – inform AML code of an operation region availability
change.
Revision – returns the revision of the ACPI specification that is
implemented.
Section 6.5.4 page 383
Section 5.7.4 page 273
Version 6.0 265