Техническая Спецификация для Intel 4 530 NE80546PG0801M

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VCCIOPLL

Input

VCCIOPLL

 

provides isolated power for internal processor FSB PLLs. Follow the 

guidelines for VCCA, and refer to the Intel

Platform Design Guide for complete implementation details.

VCC_SENSE

Output

VCC_SENSE is an isolated low impedance connection to processor core power 
(V

CC

). It can be used to sense or measure voltage near the silicon with little 

noise.

VCCVID

Input

1.2 V is required to be supplied to the VCCVID pin if the platform is going to 
support the processor. Refer to the Intel

Platform Design Guide for more information.

VCCVIDLB

Input

1.2 V is required to be supplied to the VCCVIDLB pin if the platform is going to 
support the processor. Refer to the Intel

Platform Design Guide for more information.

VID[5:0]

Output

VID[5:0] (Voltage ID) pins are used to support automatic selection of power 
supply voltages (V

CC

). These are open drain signals that are driven by the 

processor and must be pulled up to 3.3 V with 1 k

Ω 5% resistors. The voltage 

supply for these pins must be valid before the voltage regulator (VR) can supply 
V

CC

 to the processor. Conversely, the VR output must be disabled until the 

voltage supply for the VID pins becomes valid. The VID pins are needed to 
support the processor voltage specification variations. See 

of these pins. The VR must supply the voltage that is requested by the pins, or 
disable itself.

VIDPWRGD

Input

The processor requires this input to determine that the V

CCVID

 and V

CCVIDLB

 

voltages are stable and within specification.

VSS

Input

VSS are the ground pins for the processor and should be connected to the 
system ground plane. 

VSSA

Input

VSSA is the isolated ground for internal PLLs.

VSS_SENSE

Output

VSS_SENSE is an isolated low impedance connection to processor core V

SS

. It 

can be used to sense or measure ground near the silicon with little noise.