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Intel Itanium 2 Processor Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 3 of 15)

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Pinout Specifications

GND GND D11 IN

D036# D36# D12 IN/OUT

GND GND D13 IN

D065# D65# D14 IN/OUT

GND GND D15 IN

D066# D66# D16 IN/OUT

GND GND D17 IN

D064# D64# D18 IN/OUT

GND GND D19 IN

D102# D102# D20 IN/OUT

GND GND D21 IN

D098# D98# D22 IN/OUT

GND GND D23 IN

D104# D104# D24 IN/OUT

GND GND D25 IN

VCTERM VCTERM E02 IN

D001# D01# E03 IN/OUT

GND GND E04 IN

STBP0# STBP0# E05 IN/OUT

VCTERM VCTERM E06 IN

D010# D10# E07 IN/OUT

GND GND E08 IN

D040# D40# E09 IN/OUT

VCTERM VCTERM E10 IN

STBP2# STBP2# E11 IN/OUT

GND GND E12 IN

D039# D39# E13 IN/OUT

VCTERM VCTERM E14 IN

D067# D67# E15 IN/OUT

GND GND E16 IN

STBP4# STBP4# E17 IN/OUT

VCTERM VCTERM E18 IN

D074# D74# E19 IN/OUT

GND GND E20 IN

D096# D96# E21 IN/OUT

VCTERM VCTERM E22 IN

STBP6# STBP6# E23 IN/OUT

GND GND E24 IN

D100# D100# E25 IN/OUT

GND GND F01 IN

D007# D07# F02 IN/OUT

Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 3 of 15)

Pin Name System Bus

Signal Name Pin

Location Input/Output Notes

Contents

Main Intel Itanium 2 Processor Datasheet February 2006 Page Contents Page Figures Tables Page Revision History Intel Itanium 2 Processor Product Features Page 1 1.1 Overview 1.2 Processor Abstraction Layer 1.3 Mixing Processors of Different Frequencies and Cache Sizes 1.4 Terminology 1.5 State of Data Introduction 1.6 Reference Documents Page 2 2.1 Itanium 2 Processor System Bus 2.1.1 System Bus Power Pins 2.1.2 System Bus No Connect 2.2 System Bus Signals 2.2.2 Signal Descriptions 2.3 Package Specifications 2.4 Signal Specifications Table 2-3. Itanium 2 Processor Power Supply Specifications Table 2-4. AGTL+ Signals DC Specifications (Sheet 1 of 2) Table 2-5. Power Good Signal DC Specifications Table 2-6. System Bus Clock Differential HSTL DC Specifications Table 2-7. TAP Connection DC Specifications Table 2-4. AGTL+ Signals DC Specifications (Sheet 2 of 2) Table 2-8. SMBus DC Specifications Table 2-9. LVTTL Signal DC Specifications Table 2-10. System Bus Clock Differential HSTL AC Specifications (Sheet 1 of 2) Table 2-11. SMBus AC Specifications Table 2-10. System Bus Clock Differential HSTL AC Specifications (Sheet 2 of 2) 2.4.1 Maximum Ratings Figure 2-1. Generic Clock Waveform 90% Vcc V (3.3V) T SMSC 2.5 System Bus Signal Quality Specifications and Measurement Guidelines 2.5.1 Overshoot/Undershoot Magnitude 2.5.2 Overshoot/Undershoot Pulse Duration 2.5.3 Activity Factor 2.5.4 Reading Overshoot/Undershoot Specification Tables 2.5.5 Determining if a System Meets the Overshoot/Undershoot Specifications Page Page 2.5.6 Wired-OR Signals Page 2.6 Power Pod Connector Signals Page 2.7 Itanium 2 Processor System Bus Clock and Processor Clocking Page Page 2.8 Recommended Connections for Unused Pins Figure 2-7. System Bus Reset and Configuration Timings for Warm Reset t -2 t -1 t TC= Bus ratio signals must be asserted no later than RESET# T Table 2-26. Connection for Unused Pins (Sheet 2 of 2) 3 000638b Page Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 2 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 3 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 4 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 5 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 6 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 7 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 8 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 9 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 10 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 11 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 12 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 13 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 14 of 15) Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 15 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 1 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 2 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 3 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 4 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 5 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 6 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 7 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 8 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 9 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 10 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 11 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 12 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 13 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 14 of 15) Table 3-2. Pin/Signal Information Sorted by Pin Location (Sheet 15 of 15) Page 4 4.1 Mechanical Dimensions Mechanical Specifications NOTE: Figure 4-2. Itanium 2 Processor Package Processor IHS Height Substrate Height Units Mechanical Specifications Figure 4-3. Itanium 2 Processor Package Power Tab 4.2 Package Marking 4.2.1 Processor Top-Side Marking 4.2.2 Processor Bottom-Side Marking Page Page 5 5.1 Thermal Features 5.1.1 Thermal Alert 5.1.2 Enhanced Thermal Management 5.1.3 Thermal Trip 5.2 Case Temperature Page Page 6 Specifications 6.1 System Management Bus 6.1.1 System Management Bus Interface 6.1.2 System Management Interface Signals Figure 6-1. Logical Schematic of SMBus Circuitry NOTE: 1.Actual implementation may vary. 2.For use in general understanding of the architecture. Core System Board 6.1.3 SMBus Device Addressing 6.2 Processor Information ROM Table 6-3. EEPROM SMBus Addressing on the Itanium 2 Processor Table 6-4. Processor Information ROM Format (Sheet 1 of 4) Table 6-4. Processor Information ROM Format (Sheet 2 of 4) Table 6-4. Processor Information ROM Format (Sheet 3 of 4) 6.3 Scratch EEPROM 6.4 Processor Information ROM and Scratch EEPROM Supported SMBus Transactions 6.5 Thermal Sensing Device 6.6 Thermal Sensing Device Supported SMBus Transactions 6.7 Thermal Sensing Device Registers 6.7.1 Thermal Reference Registers 6.7.2 Thermal Limit Registers 6.7.3 Status Register 6.7.4 Configuration Register 6.7.5 Conversion Rate Register A Signals Reference A.1 Alphabetical Signals Reference A.1.1 A[49:3]# (I/O) A.1.2 A20M# (I) A.1.3 ADS# (I/O) A.1.6 ATTR[3:0]# (I/O) A.1.7 BCLKp/BCLKn (I) A.1.8 BE[7:0]# (I/O) A.1.9 BERR# (I/O) A.1.10 BINIT# (I/O) A.1.11 BNR# (I/O) A.1.12 BPM[5:0]# (I/O) A.1.13 BPRI# (I) A.1.14 BR[0]# (I/O) and BR[3:1]# (I) A.1.15 BREQ[3:0]# (I/O) Page A.1.22 DBSY_C2# (O) A.1.23 DEFER# (I) A.1.24 DEN# (I/O) A.1.25 DEP[15:0]# (I/O) A.1.26 DHIT# (I) Page Page A.1.39 IGNNE# (I) A.1.40 INIT# (I) A.1.41 INT (I) A.1.42 IP[1:0]# (I) A.1.43 LEN[2:0]# (I/O) Page A.1.51 RESET# (I) A.1.52 RP# (I/O) Page A.1.59 STBn[7:0]# and STBp[7:0]# (I/O) A.1.60 TCK (I) A.1.61 TDI (I) A.1.62 TDO (O) A.1.63 THRMTRIP# (O) A.2 Signal Summaries Signals Reference Table A-13. Input Signals Table A-12. Output Signals (Sheet 2 of 2) Signals Reference Table A-14. Input/Output Signals (Single Driver) Table A-15. Input/Output Signals (Multiple Driver)