Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz—Low Power Features
Intel
®
Celeron
®
Processor 1.66 GHz/1.83 GHz
DS
January 2007
14
Order Number: 315876-002
is not altered; only the internal core frequency is changed. When entering the low
power state, the processor first switches to the lower bus to core frequency ratio and
then transition to the lower voltage (VID).
While in the Extended HALT(C1E) state, the processor processes bus snoops. The
processor exits the Extended HALT state when a break event occurs. When the
processor exits the Extended HALT state, it first transitions the VID to the original value
and then changes the bus to core frequency ratio back to the original value.