LE3100MICH S L8YC Intel, LE3100MICH S L8YC Datasheet - Page 92

• Manufacturer Part Number: LE3100MICH S L8YC
• Manufacturer: Intel

Specifications of LE3100MICH S L8YC

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.2.3.2
6.2.4
6.2.4.1
6.2.4.2
6.2.5
90
Extended Stop Grant State
Extended Stop Grant is a low power state entered when the STPCLK# signal is asserted
and Extended Stop Grant has been enabled via the BIOS.
The processor will automatically transition to a lower frequency and voltage operating
point before entering the Extended Stop Grant state. When entering the low power
state, the processor will first switch to the lower bus ratio and then transition to the
lower VID.
The processor exits the Extended Stop Grant state when a break event occurs. When
the processor exits the Extended Stop Grant state, it will resume operation at the lower
frequency, transition the VID to the original value, and then change the bus ratio back
to the original value.
Extended HALT Snoop State, HALT Snoop State, Extended
Stop Grant Snoop State, and Stop Grant Snoop State
The Extended HALT Snoop State is used in conjunction with the Extended HALT state. If
Extended HALT state is not enabled in the BIOS, the default Snoop State entered will
be the HALT Snoop State. Refer to the sections below for details on HALT Snoop State,
Stop Grant Snoop State, Extended HALT Snoop State, Extended Stop Grant Snoop
State.
HALT Snoop State, Stop Grant Snoop State
The processor will respond to snoop transactions on the FSB while in Stop-Grant state
or in HALT powerdown state. During a snoop transaction, the processor enters the HALT
Snoop State:Stop Grant Snoop state. The processor will stay in this state until the
snoop on the FSB has been serviced (whether by the processor or another agent on the
FSB). After the snoop is serviced, the processor will return to the Stop Grant state or
HALT powerdown state, as appropriate.
Extended HALT Snoop State, Extended Stop Grant Snoop State
The processor will remain in the lower bus ratio and VID operating point of the
Extended HALT state or Extended Stop Grant state.
While in the Extended HALT Snoop State or Extended Stop Grant Snoop State, snoops
are handled the same way as in the HALT Snoop State or Stop Grant Snoop State. After
the snoop is serviced the processor will return to the Extended HALT state or Extended
Stop Grant state.
Enhanced Intel SpeedStep
The processor supports Enhanced Intel SpeedStep Technology. This technology enables
the processor to switch between frequency and voltage points, which may result in
platform power savings. In order to support this technology, the system must support
dynamic VID transitions. Switching between voltage/frequency states is software
controlled.
Enhanced Intel SpeedStep Technology is a technology that creates processor
performance states (P states). P states are power consumption and capability states
within the Normal state as shown in
enables real-time dynamic switching between frequency and voltage points. It alters
the performance of the processor by changing the bus to core frequency ratio and
voltage. This allows the processor to run at different core frequencies and voltages to
Figure
®
Technology
6-1. Enhanced Intel SpeedStep Technology
Features
Datasheet