Power
Figure 14. Package C-State Entry and Exit
C0
C3 | C6 |
C1
Package C0 State
C7
This is the normal operating state for the processor. The processor remains in the normal state when at least one of its cores is in the C0 or C1 state or when the platform has not granted permission to the processor to go into a
Package C1/C1E State
No additional power reduction actions are taken in the package C1 state. However, if the C1E
The package enters the C1
•At least one core is in the C1 state.
•The other cores are in a C1 or deeper power state.
The package enters the C1E state when:
•All cores have directly requested C1E using MWAIT(C1) with a C1E
•All cores are in a power state deeper than C1/C1E state; however, the package
•All cores have requested C1 state using HLT or MWAIT(C1) and C1E auto- promotion is enabled in IA32_MISC_ENABLES.
No notification to the system occurs upon entry to C1/C1E state.
Desktop 4th Generation Intel® Core™ Processor Family, Desktop Intel® Pentium® Processor Family, and Desktop Intel® Celeron® Processor Family
December 2013 | Datasheet – Volume 1 of 2 |
Order No.: | 57 |