EP80579 Datasheet, PDF (1045/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
27.0
27.1
Power Management
Features
• ACPI Power and Thermal Management Support.
— Processor THRMTRIP# emergency shutdown.
— ACPI 24-Bit Timer.
— Software initiated throttling of processor performance for Thermal and Power
Reduction.
— SCI and SMI# Generation.
• PCI PME# Signal for Wake Up from Low-Power states.
• SYS_Reset# input to eliminate external glue logic.
• System Clock Control.
— ACPI C0 state Full On: Processor operating. Individual devices may be shut
to save power.
— ACPI C1 state
Auto-Halt: Processor has executed a AutoHalt instruction and
is not executing code. The processor snoops the bus and
maintains cache coherency.
— ACPI C2 state Stop-Grant state (using STPCLK# signal) halts processor’s
instruction stream.
• System Sleeping State Control.
— ACPI S0 state – All power planes active (awake).
— ACPI S3 state – Suspend to RAM (STR).
— Supports S3-Cold state.
— ACPI S4 state – Suspend-to-Disk (STD).
— ACPI S5 state – Soft Off (SOFF).
— Power Failure Detection and Recovery.
• Streamlined Legacy Power Management Support for APM-Based Systems.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1045