Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

Datasheet, Vol. 2 of 3

September 2014

162

Order Number: 330061-002US

The SoC implements proprietary hardware to minimize power consumption when the 

platform is in use, but idle. The platform achieves power savings while in the G0/S0 

(full on) state similar to or better than typically achieved in the G1/Sx (sleeping) power 

states.

ACPI provides a mechanism for the platform BIOS to indicate to the Operating System 

Power Management (OSPM) that such capability is available. Refer to the Advanced 

Configuration and Power Interface Specification, Revision 5.0 for details.

When this capability is available, the OSPM keeps the system in S0 idle for its low-

latency response and its connectedness rather than transitioning to a system sleep 

state which has neither.

While the SoC implements S0 idle mechanisms, the SoC does not support OS-directed, 

centrally-controlled, power savings commonly referred to as S0ix mechanisms.

Some form of S0 idle occurs when the system is quiet, for example when the system is 

waiting for user input or when drivers are not causing unnecessary CPU or SoC activity. 

To conserve power, the SoC does gate clocks and powers down to a number of the 

internal blocks and external-pin I/O buffers.