Motherboard-Socket Specification For Vr Sense Point; Core And Uncore Voltage Identification; Vr Sense Point (Representation) - Intel BX80569Q9550 - Core 2 Quad 2.83 GHz Processor Datasheet

Electrical Specifications
2.6.7

Motherboard-Socket Specification for VR Sense Point

Figure 2-16. VR Sense Point (Representation)
Note: ±1.5% DC (DC to 1 MHz) and ±1% AC (1 MHz to 20 MHz) specified at MB/socket.
2.7

Core and Uncore Voltage Identification

The VID_VCCCORE[6:0] and VID_VCCUNCORE[6:0] lands supply the encoding that
determine the voltage to be supplied by the VCCCORE and VCCUNCORE voltage
regulators. The VID_VCCCORE and VID_VCCUNCORE specifications for the Intel
®
Itanium
Voltage Regulator Module Design Guide and Ararat II Voltage Regulator Module
Design Guide, respectively. The voltage set by the VID_VCCCORE and
VID_VCCUNCORE lands are the maximum VCCCORE and VCCUNCORE voltage allowed
by the processor.
Individual processor VID_VCCCORE and VID_VCCUNCORE values may be calibrated
during manufacturing such that two devices at the same core speed may have different
default VID_VCCCORE and VID_VCCUNCORE settings. Furthermore, any Intel
®
Itanium
different VID_VCCCORE and VID_VCCUNCORE settings during normal operation.
Table 2-36
VID_VCCCORE and VID_VCCUNCORE for the Intel
and Intel
high voltage level and a '0' refers to a low voltage level.
The Intel
provide the ability to operate while transitioning to an adjacent VID and its associated
processor core voltage (VCCCORE). This will represent a DC shift in the load line. It
should be noted that a low-to-high or high-to-low voltage state change may result in
many VID transitions as necessary to reach the target core voltage. Transitions above
the specified VID are not permitted.
The Ararat voltage regulator must be capable of regulating its output to the value
defined by the new VID. Please refer to the Ararat 170 Watt Voltage Regulator Module
Design Guide for the Intel
Voltage Regulator Module Design Guide for the Intel
® ®
Intel Itanium Processor 9300 Series and 9500 Series Datasheet
VR Sense point VR Sense point
Processor 9300 Series and 9500 Series are defined in the Ararat 170 Watt
Processor 9300 Series and Intel
and Table 2-37 specify the voltage levels corresponding to the state of
® ®
Itanium Processor 9500 Series respectively. A '1' in this table refers to a
® ®
Itanium Processor 9300 Series and Intel
®
Itanium
FBD pins FBD pins
® ®
Itanium Processor 9500 Series can drive
®
Itanium
®
Itanium
®
Processor 9300 Series processor or the Ararat II
®
Itanium
®
®
®
Processor 9300 Series
®
Processor 9500 Series
®
Processor 9500 Series.
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