Intel RH80532GC033512 Datasheet download pdf (Page 16)

Electrical Specifications

16 Mobile Intel



Pentium



4 Processor-M Datasheet

2.4.1 Enhanced Intel

SpeedStep

Technology

The Mobile Intel Pentium 4 Processor-M, when used in conjunction with the requisite Intel



SpeedStep



technology applet or its equivalent, supports Enhanced Intel SpeedStep technology.

Enhanced Intel SpeedStep technology allows the processor to switch between two core frequencies

automatically based on CPU demand, without having to reset the processor or change the system

bus frequency. The processor operates in two modes, the Maximum Performance mode or the

Battery Optimized mode. Each frequency and voltage pair identifies the operating mode. The

processor drives the VID[4:0] pins with the correct VID for the current operating mode. After

reset, the processor will start in Battery Optimized mode. Any RESET# assertion will force the

Table 3. Voltage Identification Definition

Processor Pins

VID4 VID3 VID2 VID1 VID0 V

CC_

1 1 1 1 1 0.600

1 1 1 1 0 0.625

1 1 1 0 1 0.650

1 1 1 0 0 0.675

1 1 0 1 1 0.700

1 1 0 1 0 0.725

1 1 0 0 1 0.750

1 1 0 0 0 0.775

1 0 1 1 1 0.800

1 0 1 1 0 0.825

1 0 1 0 1 0.850

1 0 1 0 0 0.875

1 0 0 1 1 0.900

1 0 0 1 0 0.925

1 0 0 0 1 0.950

1 0 0 0 0 0.975

0 1 1 1 1 1.000

0 1 1 1 0 1.050

0 1 1 0 1 1.100

0 1 1 0 0 1.150

0 1 0 1 1 1.200

0 1 0 1 0 1.250

0 1 0 0 1 1.300

0 1 0 0 0 1.350

0 0 1 1 1 1.400

0 0 1 1 0 1.450

0 0 1 0 1 1.500

0 0 1 0 0 1.550

0 0 0 1 1 1.600

0 0 0 1 0 1.650

0 0 0 0 1 1.700

0 0 0 0 0 1.750

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 96 97

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