Intel HH80562XH0778M Ficha Técnica descarregar pdf (Página 70)

Land Listing and Signal Descriptions

70 Datasheet

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VID_SELECT Output

This land is tied high on the processor package and is used by the

VR to choose the proper VID table. Refer to the Voltage Regulator-

Down (VRD) 11.0 Processor Power Delivery Design Guidelines For

Desktop LGA775 Socket for more information.

VRDSEL Input

This input should be left as a no connect in order for the processor

to boot. The processor will not boot on legacy platforms where this

land is connected to V

VSS Input

VSSA provides isolated ground for internal PLLs on previous

generation processors.

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

. It can be used to sense or measure ground near the

silicon with little noise.

VSS_MB_

REGULATION

Output

This land is provided as a voltage regulator feedback sense point for

. It is connected internally in the processor package to the sense

point land V27 as described in the Voltage Regulator-Down (VRD)

11.0 Processor Power Delivery Design Guidelines For Desktop

LGA775 Socket.

VTT Miscellaneous voltage supply.

VTT_OUT_LEFT

VTT_OUT_RIGHT

Output

The VTT_OUT_LEFT and VTT_OUT_RIGHT signals are included to

provide a voltage supply for some signals that require termination

to V

on the motherboard.

VTT_SEL Output

The VTT_SEL signal is used to select the correct V

voltage level for

the processor. This land is connected internally in the package to

Table 23. Signal Description (Sheet 9 of 9)

Name Type Description

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 87 88

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