Intel CP80617004803AA Scheda Tecnica Pagina 60

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Thermal Management
60 Datasheet
Once a target frequency/bus ratio is resolved, the processor core will transition to the
new target automatically.
On an upward operating point transition, the voltage transition precedes the
frequency transition.
On a downward transition, the frequency transition precedes the voltage transition.
When transitioning to a target core operating voltage, a new VID code to the voltage
regulator is issued. The voltage regulator must support dynamic VID steps to support
this method.
During the voltage change:
It will be necessary to transition through multiple VID steps to reach the target
operating voltage.
Each step is 12.5 mV for Intel MVP-6.5 compliant VRs.
The processor continues to execute instructions. However, the processor will halt
instruction execution for frequency transitions.
Figure 5-12.Frequency and Voltage Ordering
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