Intel N2820 FH8065301616603 Ficha De Dados

Códigos do produto

FH8065301616603

Datasheet

Power Management

the operating system if the processor determines, using heuristics, that the
shallower C-state results in better power/performance.

The processor exits a package C-state when a break event is detected. Depending on
the type of break event, the processor does the following:

•

If a core break event is received, the target core is activated and the break event
message is forwarded to the target core.

— If the break event is not masked, the target core enters the core C0 state and

the processor enters package C0.

— If the break event is masked, the processor attempts to re-enter its previous

package state.

•

If the break event was due to a memory access or snoop request.

— But the platform did not request to keep the processor in a higher package C-

state, the package returns to its previous C-state.

— And the platform requests a higher power C-state, the memory access or snoop

request is serviced and the package remains in the higher power C-state.

NOTES:

2 Cores of the Processor will make up one module.

6.3.5.1

Package C0 State

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 state or when the platform has not
granted permission to the processor to go into a low power state. Individual cores may
be in lower power idle states while the package is in C0.

6.3.5.2

Package C1 State

No additional power reduction actions are taken in the package C1 state.

The package enters the C1 low power state when:

•

At least one core is in the C1 state.

•

The other cores are in a C1 state or lower power state.

Table 49. Coordination of Core/Module Power States at the Package Level

Package C-State

Core/Module 1

C6NS

C7 (C6FS)

Core/Module 0

C6NS

C6C

(C6FS)

C6C