Intel Xeon E7330 LF80565QH0566M Data Sheet

94

Document Number: 318080-002

VID[6:1]

O

VID[6:1] (Voltage ID) pins are used to support automatic selection of power supply 

voltages (V

CC

). These are CMOS signals that are driven by the processor and must be 

pulled up through a resistor. Conversely, the voltage regulator output must be 

disabled prior to the voltage supply for these pins becomes invalid. The VID pins are 

needed to support processor voltage specification variations. See 

 for 

definitions of these pins. The VR must supply the voltage that is requested by these 

pins, or disable itself.

VSS_SENSE
VSS_SENSE2

O

VSS_SENSE and VSS_SENSE2 provides an isolated, low impedance connection to the 

processor core power and ground. These signals should be used to provide feedback 

to the voltage regulator signals, which ensure the output voltage (that is, processor 

voltage) remains within specification. Please see the applicable platform design guide 

for implementation details.

VTT

P

The FSB termination voltage input pins. Refer to 

 for further details.

VTT_SEL

O

The VTT_SEL signal is used to select the correct V

TT

 voltage level for the processor. 

VTT_SEL is a no-connect on the Intel

®

 Xeon

®

 Processor 7200 Series and 7300 Series 

package.