Intel 9110N NE80567KE025003 Manuel D’Utilisation
Codes de produits
NE80567KE025003
Intel
®
Itanium
®
Processor 9300 Series Datasheet
35
Electrical Specifications
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 (the core and
system interface voltages for the Intel® Itanium® processor 9300 series) voltage
regulators. The VID_VCCCORE and VID_VCCUNCORE specifications for the processor
are defined in the Ararat 170 Watt Voltage Regulator Design Guide. The voltage set by
the VID_VCCCORE and VID_VCCUNCORE lands are the maximum VCCCORE and
VCCUNCORE voltage allowed by the processor.
determine the voltage to be supplied by the VCCCORE and VCCUNCORE (the core and
system interface voltages for the Intel® Itanium® processor 9300 series) voltage
regulators. The VID_VCCCORE and VID_VCCUNCORE specifications for the processor
are defined in the Ararat 170 Watt Voltage Regulator Design Guide. 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® processor 9300 series
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® processor 9300 series
can drive different VID_VCCCORE and
VID_VCCUNCORE settings during normal operation.
The Intel® Itanium® processor 9300 series uses seven voltage identification lands
(VID_VCCCORE[6:0]) and seven system interface voltage identifications
(VID_VCCUNCORE[6:0]) to support automatic selection of Ararat voltages.
(VID_VCCCORE[6:0]) and seven system interface voltage identifications
(VID_VCCUNCORE[6:0]) to support automatic selection of Ararat voltages.
specifies the voltage levels corresponding to the state of VID_VCCCORE[6:0] and
VID_VCCUNCORE[6:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers
to a low voltage level.
VID_VCCUNCORE[6:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers
to a low voltage level.
The Intel® Itanium® processor 9300 series provides 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 as many VID transitions as necessary to
reach the target core voltage. Transitions above the specified VID are not permitted.
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 as 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 Design
Guide.
defined by the new VID. Please refer to the Ararat 170 Watt Voltage Regulator Design
Guide.