Intel Itanium 2 Processor manual Processor Core Voltage Identification Code1, VID2 VID1 VID0

Electrical Specifications

The power pod provides a selectable output voltage controlled via multiple binary weighted Voltage Identification (VID) inputs. The VID value (high = 1; low = 0) is defined in Table 2-23. VID pads shall be considered as LVTTL inputs to the power pod, having resistive pull-ups (5 kΩ) included inside the power pod to the internal 3.3 V power supply. The VID pads on the power connector tab will be pulled low with 10 Ω resistors that are internal to the processor. The 10 Ω resistive pulldowns are controlled by Intel and will not be externally adjustable.

Table 2-23. Processor Core Voltage Identification Code1

	Processor Pins: 0 = Connected to GND; 1 = Open				VCC (VDC)
VID4	VID3	VID2	VID1	VID0
1	1	1	1	1	Output Off
1	1	1	1	0	0.95
1	1	1	0	1	0.975
1	1	1	0	0	1.0
1	1	0	1	1	1.025
1	1	0	1	0	1.05
1	1	0	0	1	1.075
1	1	0	0	0	1.1
1	0	1	1	1	1.125
1	0	1	1	0	1.15
1	0	1	0	1	1.175
1	0	1	0	0	1.2
1	0	0	1	1	1.225
1	0	0	1	0	1.250
1	0	0	0	1	1.275
1	0	0	0	0	1.3
0	1	1	1	1	1.325
0	1	1	1	0	1.35
0	1	1	0	1	1.375
0	1	1	0	0	1.4
0	1	0	1	1	1.425
0	1	0	1	0	1.45
0	1	0	0	1	1.475
0	1	0	0	0	1.5
0	0	1	1	1	1.525
0	0	1	1	0	1.55
0	0	1	0	1	1.575
0	0	1	0	0	1.6
0	0	0	1	1	1.625
0	0	0	1	0	1.65
0	0	0	0	1	1.675
0	0	0	0	0	1.7

NOTES:

1. Nominal settings require regulation to ±7% at VCC,PS pins at the power tab under all conditions.

The processor has several power levels as shown in Table 2-24and in Figure 2-5. Full power to the processor is defined in Table 2-2.

Datasheet 31