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Intel BX80571E5300 Data Sheet - Page 14

Voltage Identification

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Electrical Specifications 2.2.3 2.3 Note: FSB Decoupling The processor integrates signal termination on the die. In addition, some of the high frequency capacitance required for the FSB is included on the processor package. However, additional high frequency capacitance must be added to the motherboard to properly decouple the return currents from the front side bus. Bulk decoupling must also be provided by the motherboard for proper [A]GTL+ bus operation. Voltage Identification The Voltage Identification (VID) specification for the processor is defined by the Voltage Regulator-Down (VRD) 11.0 Processor Power Delivery Design Guidelines For Desktop LGA775 Socket. The voltage set by the VID signals is the reference VR output voltage to be delivered to the processor VCC lands (see Chapter 2.6.3 for VCC overshoot specifications). Refer to Table 12 for the DC specifications for these signals. Voltages for each processor frequency is provided in Table 4. To support the Deeper Sleep State the platform must use a VRD 11.1 compliant solution. The Deeper Sleep State also requires additional platform support. Individual processor VID values may be calibrated during manufacturing such that two devices at the same core speed may have different default VID settings. This is reflected by the VID Range values provided in Table 4. Refer to the Intel® Pentium® dual-core Processor E5000 Series Specification Update for further details on specific valid core frequency and VID values of the processor. Note that this differs from the VID employed by the processor during a power management event (Thermal Monitor 2, Enhanced Intel SpeedStep® technology, or Extended HALT State). The processor uses eight voltage identification signals, VID[7:0], to support automatic selection of power supply voltages. Table 2 specifies the voltage level corresponding to the state of VID[7:0]. A '1' in this table refers to a high voltage level and a '0' refers to a low voltage level. If the processor socket is empty (VID[7:0] = 11111110), or the voltage regulation circuit cannot supply the voltage that is requested, it must disable itself. The processor provides the ability to operate while transitioning to an adjacent VID and its associated processor core voltage (VCC). 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. Table 4 includes VID step sizes and DC shift ranges. Minimum and maximum voltages must be maintained as shown in Table 5, and Figure 1, as measured across the VCC_SENSE and VSS_SENSE lands. The VRM or VRD utilized must be capable of regulating its output to the value defined by the new VID. DC specifications for dynamic VID transitions are included in Table 4 and Table 5 . Refer to the Voltage Regulator Design Guide for further details. 14 Datasheet

Section	Page
Intel® Pentium® Dual-Core Processor E5000D Series	1
Contents	3
Figures	5
Tables	6
Intel® Pentium® Dual-Core Processor E5000 Series Features	7
Revision History	8
1 Introduction	9
1.1 Terminology	9
1.1.1 Processor Terminology Definitions	10
1.2 References	11
Table 1. References	11
2 Electrical Specifications	13
2.1 Power and Ground Lands	13
2.2 Decoupling Guidelines	13
2.2.1 VCC Decoupling	13
2.2.2 VTT Decoupling	13
2.2.3 FSB Decoupling	14
2.3 Voltage Identification	14
Table 2. Voltage Identification Definition	15
2.4 Reserved, Unused, and TESTHI Signals	16
2.5 Power Segment Identifier (PSID)	16
2.6 Voltage and Current Specification	17
2.6.1 Absolute Maximum and Minimum Ratings	17
Table 3. Absolute Maximum and Minimum Ratings	17
2.6.2 DC Voltage and Current Specification	18
Table 4. Voltage and Current Specifications	18
Table 5. Processor VCC Static and Transient Tolerance	19
Figure 1. Processor VCC Static and Transient Tolerance	20
2.6.3 VCC Overshoot	20
Table 6. VCC Overshoot Specifications	20
Figure 2. VCC Overshoot Example Waveform	21
2.6.4 Die Voltage Validation	21
2.7 Signaling Specifications	21
2.7.1 FSB Signal Groups	22
Table 7. FSB Signal Groups	22
Table 8. Signal Characteristics	23
Table 9. Signal Reference Voltages	23
2.7.2 CMOS and Open Drain Signals	23
2.7.3 Processor DC Specifications	24
Table 10. GTL+ Signal Group DC Specifications	24
Table 11. Open Drain and TAP Output Signal Group DC Specifications	24
Table 12. CMOS Signal Group DC Specifications	25
2.7.3.1 Platform Environment Control Interface (PECI) DC Specifications	25
Table 13. PECI DC Electrical Limits	26
2.7.3.2 GTL+ Front Side Bus Specifications	26
Table 14. GTL+ Bus Voltage Definitions	27
2.8 Clock Specifications	27
2.8.1 Front Side Bus Clock (BCLK[1:0]) and Processor Clocking	27
Table 15. Core Frequency to FSB Multiplier Configuration	28
2.8.2 FSB Frequency Select Signals (BSEL[2:0])	28
Table 16. BSEL[2:0] Frequency Table for BCLK[1:0]	29
2.8.3 Phase Lock Loop (PLL) and Filter	29
2.8.4 BCLK[1:0] Specifications	29
Table 17. Front Side Bus Differential BCLK Specifications	29
Table 18. FSB Differential Clock Specifications (800 MHz FSB)	30
Figure 3. Differential Clock Waveform	30
Figure 4. Measurement Points for Differential Clock Waveforms	31
3 Package Mechanical Specifications	33
Figure 5. Processor Package Assembly Sketch	33
3.1 Package Mechanical Drawing	33
Figure 6. Processor Package Drawing Sheet 1 of 3	34
Figure 7. Processor Package Drawing Sheet 2 of 3	35
Figure 8. Processor Package Drawing Sheet 3 of 3	36
3.2 Processor Component Keep-Out Zones	37
3.3 Package Loading Specifications	37
Table 19. Processor Loading Specifications	37
3.4 Package Handling Guidelines	37
Table 20. Package Handling Guidelines	37
3.5 Package Insertion Specifications	38
3.6 Processor Mass Specification	38
3.7 Processor Materials	38
Table 21. Processor Materials	38
3.8 Processor Markings	38
Figure 9. Processor Top-Side Markings Example	38
3.9 Processor Land Coordinates	39
Figure 10. Processor Land Coordinates and Quadrants, Top View	39
4 Land Listing and Signal Descriptions	41
4.1 Processor Land Assignments	41
Figure 11. land-out Diagram (Top View - Left Side)	42
Figure 12. land-out Diagram (Top View - Right Side)	43
Table 22. Alphabetical Land Assignments	44
Table 23. Numerical Land Assignment	54
4.2 Alphabetical Signals Reference	64
Table 24. Signal Description (Sheet 10 of 10)	64
5 Thermal Specifications and Design Considerations	75
5.1 Processor Thermal Specifications	75
5.1.1 Thermal Specifications	75
Table 25. Processor Thermal Specifications	76
Table 26. Processor Thermal Profile	77
Figure 13. Processor Series Thermal Profile	77
5.1.2 Thermal Metrology	78
Figure 14. Case Temperature (TC) Measurement Location	78
5.2 Processor Thermal Features	78
5.2.1 Thermal Monitor	78
5.2.2 Thermal Monitor 2	79
Figure 15. Thermal Monitor 2 Frequency and Voltage Ordering	80
5.2.3 On-Demand Mode	80
5.2.4 PROCHOT# Signal	80
5.2.5 THERMTRIP# Signal	81
5.3 Platform Environment Control Interface (PECI)	81
5.3.1 Introduction	81
5.3.1.1 TCONTROL and TCC activation on PECI-Based Systems	82
Figure 16. Conceptual Fan Control Diagram on PECI-Based Platforms	82
5.3.2 PECI Specifications	82
5.3.2.1 PECI Device Address	82
5.3.2.2 PECI Command Support	82
5.3.2.3 PECI Fault Handling Requirements	83
5.3.2.4 PECI GetTemp0() Error Code Support	83
Table 27. GetTemp0() Error Codes	83
6 Features	85
6.1 Power-On Configuration Options	85
Table 28. Power-On Configuration Option Signals	85
6.2 Clock Control and Low Power States	85
Figure 17. Processor Low Power State Machine	86
6.2.1 Normal State	86
6.2.2 HALT and Extended HALT Powerdown States	86
6.2.2.1 HALT Powerdown State	86
6.2.2.2 Extended HALT Powerdown State	87
6.2.3 Stop Grant and Extended Stop Grant States	87
6.2.3.1 Stop-Grant State	87
6.2.3.2 Extended Stop Grant State	88
6.2.4 Extended HALT Snoop State, HALT Snoop State, Extended Stop Grant Snoop State, and Stop Grant Snoop State	88
6.2.4.1 HALT Snoop State, Stop Grant Snoop State	88
6.2.4.2 Extended HALT Snoop State, Extended Stop Grant Snoop State	88
6.2.5 Sleep State	88
6.2.6 Deep Sleep State	89
6.2.7 Deeper Sleep State	89
6.2.8 Enhanced Intel SpeedStep® Technology	90
6.3 Processor Power Status Indicator (PSI) Signal	90
7 Boxed Processor Specifications	91
7.1 Introduction	91
Figure 18. Mechanical Representation of the Boxed Processor	91
7.2 Mechanical Specifications	92
7.2.1 Boxed Processor Cooling Solution Dimensions	92
Figure 19. Space Requirements for the Boxed Processor (Side View)	92
Figure 20. Space Requirements for the Boxed Processor (Top View)	92
Figure 21. Overall View Space Requirements for the Boxed Processor	93
7.2.2 Boxed Processor Fan Heatsink Weight	93
7.2.3 Boxed Processor Retention Mechanism and Heatsink Attach Clip Assembly	93
7.3 Electrical Requirements	93
7.3.1 Fan Heatsink Power Supply	93
Figure 22. Boxed Processor Fan Heatsink Power Cable Connector Description	94
Table 29. Fan Heatsink Power and Signal Specifications	94
Figure 23. Baseboard Power Header Placement Relative to Processor Socket	95
7.4 Thermal Specifications	95
7.4.1 Boxed Processor Cooling Requirements	95
Figure 24. Boxed Processor Fan Heatsink Airspace Keepout Requirements (side 1 view)	96
Figure 25. Boxed Processor Fan Heatsink Airspace Keepout Requirements (side 2 view)	96
7.4.2 Variable Speed Fan	97
Figure 26. Boxed Processor Fan Heatsink Set Points	97
Table 30. Fan Heatsink Power and Signal Specifications	98
8 Debug Tools Specifications	99
8.1 Logic Analyzer Interface (LAI)	99
8.1.1 Mechanical Considerations	99

Match case Limit results 1 per page

Electrical Specifications

Datasheet

2.2.3

FSB Decoupling

The processor integrates signal termination on the die. In addition, some of the high

frequency capacitance required for the FSB is included on the processor package.

However, additional high frequency capacitance must be added to the motherboard to

properly decouple the return currents from the front side bus. Bulk decoupling must

also be provided by the motherboard for proper [A]GTL+ bus operation.

2.3

Voltage Identification

The Voltage Identification (VID) specification for the processor is defined by the

Voltage

Regulator-Down (VRD) 11.0 Processor Power Delivery Design Guidelines For Desktop

LGA775 Socket

. The voltage set by the VID signals is the reference VR output voltage

to be delivered to the processor VCC lands (see

Chapter 2.6.3

for V

overshoot

specifications). Refer to

Table 12

for the DC specifications for these signals. Voltages

for each processor frequency is provided in

Table 4

Note:

To support the Deeper Sleep State the platform must use a VRD 11.1 compliant

solution. The Deeper Sleep State also requires additional platform support.

Individual processor VID values may be calibrated during manufacturing such that two

devices at the same core speed may have different default VID settings. This is

reflected by the VID Range values provided in

Table 4

. Refer to the

Intel

Pentium

dual-core Processor E5000 Series Specification Update

for further details on specific

valid core frequency and VID values of the processor. Note that this differs from the

VID employed by the processor during a power management event (Thermal Monitor 2,

Enhanced Intel SpeedStep

technology, or Extended HALT State).

The processor uses eight voltage identification signals, VID[7:0], to support automatic

selection of power supply voltages.

Table 2

specifies the voltage level corresponding to

the state of VID[7:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers to

a low voltage level. If the processor socket is empty (VID[7:0] = 11111110), or the

voltage regulation circuit cannot supply the voltage that is requested, it must disable

itself.

The processor provides the ability to operate while transitioning to an adjacent VID and

its associated processor core voltage (V

). 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.

Table 4

includes VID step sizes

and DC shift ranges. Minimum and maximum voltages must be maintained as shown in

Table 5

, and

Figure 1

, as measured across the VCC_SENSE and VSS_SENSE lands.

The VRM or VRD utilized must be capable of regulating its output to the value defined

by the new VID. DC specifications for dynamic VID transitions are included in

Table 4

and

Table 5

. Refer to the Voltage Regulator Design Guide for further details.