EP80579 Datasheet, PDF (265/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
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Power Management Logic
Power management logic for various environments require updates.
• ACPI 2.0 Compliant.
• Support for APM-based legacy power management for non-ACPI implementations.
• Supports ACPI defined power states S0, S1, S3 cold, S4 and S5 (SOFF).
• ACPI Power Management Timer.
• SMI# Generation.
• PCI PME#.
DMA Controller
• Two cascaded 8237 DMA Controllers.
• Supports LPC DMA.
Timers Based on 82C54
• System Timer, Refresh Request, Speaker Tone Output.
High Precision Event Timers (HPET)
• Three timer comparators provided.
• One-shot and periodic interrupts supported.
Real-Time Clock with 256-byte Battery-backed CMOS RAM
• Integrated components for the oscillator to reduce problems with incorrect external
selections.
• Lower Power DC/DC Converter implementation.
System TCO Reduction Circuits
• Timers to detect improper CPU reset and to generate SMI# and Reset upon
detection of stuck CPU.
• Interrupt capability to OS-specific manageability extension and OS capability to call
TCO BIOS.
• Supports CPU BIST.
• Ability to disable external devices.
SMBus
• Host interface allows CPU to communicate via SMBus.
• Compatible with most 2-wire components that are also I²C compatible.
• Slave interface allows internal or external microcontroller to access system
resources.
• SMBus 2.0 Compliant.
• No ASF support.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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