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Intel Itanium 2 Processor Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 13 of 15)

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Pinout Specifications

N/C K02

N/C K12

N/C K14

N/C K24

N/C U05

N/C U11

OUTEN OUTEN AF04 IN Power pod signal

PMI# PMI# AE25 IN

PPODGD# PPODGD# AF20 OUT Power pod signal

PWRGOOD PWRGOOD AH1 5 IN

REQ0# REQA0#/LEN0# AE09 IN/OUT

REQ1# WSNP#, D/C#/LEN1# AF10 IN/OUT

REQ2# REQA2#/ REQB2# AD10 IN/OUT

REQ3# ASZ0#/DSZ0# AE11 IN/OUT

REQ4# ASZ1#/DSZ1# AF12 IN/OUT

REQ5# REQ5# AD12 IN/OUT

RESET# RESET# AD20 IN

RP# RP# AC13 IN/OUT

RS0# RS0# AE07 IN

RS1# RS1# AD08 IN

RS2# RS2# AB08 IN

RSP# RSP# AF06 IN

SBSY# SBSY# AE13 IN/OUT

SBSY0# SBSY_C1# AA13 OUT

SBSY1# SBSY_C2# AC19 OUT

SMA0 SMA0 B18 IN SMBus signal

SMA1 SMA1 A17 IN SMBus signal

SMA2 SMA2 A15 IN SMBus signal

SMSC SMSC B24 IN SMBus signal

SMSD SMSD B22 IN/OUT SMBus signal

SMWP SMWP A21 IN SMBus signal

STBN0# STBN0# F04 IN/OUT

STBN1# STBN1# N05 IN/OUT

STBN2# STBN2# F10 IN/OUT

STBN3# STBN3# N11 IN/OUT

STBN4# STBN4# F16 IN/OUT

STBN5# STBN5# N17 IN/OUT

STBN6# STBN6# F22 IN/OUT

STBN7# STBN7# N23 IN/OuT

STBP0# STBP0# E05 IN/OUT

STBP1# STBP1# M04 IN/OUT

Table 3-1. Pin/Signal Information Sorted by Pin Name (Sheet 13 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)