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Pin Descriptions

Chapter 11

AMD Athlon™ XP Processor Model 10 Data Sheet

26237C—May 2003

Preliminary Information

VSS

V30

VSS

V32

VSS

V34

VSS

V36

VSS

Z30

VSS

Z32

VSS

Z34

VSS

Z36

VSS

AB2

VSS

AB8

VSS

AB4

VSS

AB6

VSS

AD32

VSS

AD34

VSS

AD36

VSS

AF2

VSS

AF4

VSS

AF12

VSS

AF16

VSS

AH12

VSS

AH16

VSS

AH20

VSS

AH24

VSS

AH28

VSS

AH32

VSS

AH34

Table 23. Pin Name Abbreviations (continued)

Abbreviation

Full Name

Pin

VSS

AH36

VSS

AK2

VSS

AK4

VSS

AK12

VSS

AK16

VSS

AK20

VSS

AK24

VSS

AK28

VSS

AK32

VSS

AM4

VSS

AM6

VSS

AM12

VSS

AM16

VSS

AM20

VSS

AM24

VSS

AM28

VSS

AM32

VSS

AM36

AC5

AE5

Table 23. Pin Name Abbreviations (continued)

Abbreviation

Full Name

Pin

Summary of Contents for Athlon XP 10

Page 1: ...Preliminary Information AMD Athlon XP Processor Model 10 Data Sheet Publication 26237 Rev C Issue Date May 2003 TM...

Page 2: ...s to specifications and prod uct descriptions at any time without notice No license whether express implied arising by estoppel or otherwise to any intellectual property rights is granted by this publ...

Page 3: ...3 Front Side Bus AMD Athlon XP Processor Model 10 Specifications 21 6 1 Electrical and Thermal Specifications for the Advanced 333 FSB AMD Athlon XP Processor Model 10 21 6 2 Advanced 333 FSB AMD Athl...

Page 4: ...C Pins AC and DC Characteristics 41 9 Signal and Power Up Requirements 43 9 1 Power Up Requirements 43 Signal Sequence and Timing Description 43 Clock Multiplier Selection FID 3 0 46 9 2 Processor War...

Page 5: ...76 PWROK Pin 76 SADDIN 1 0 and SADDOUT 1 0 Pins 77 Scan Pins 77 SMI Pin 77 STPCLK Pin 77 SYSCLK and SYSCLK 77 THERMDA and THERMDC Pins 77 VCCA Pin 77 VID 4 0 Pins 77 VREFSYS Pin 78 ZN and ZP Pins 78...

Page 6: ...vi Table of Contents AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 7: ...7 Processor Connect State Diagram 17 Figure 8 SYSCLK Waveform 22 Figure 9 SYSCLK Waveform 26 Figure 10 VCC_CORE Voltage Waveform 33 Figure 11 SYSCLK and SYSCLK Differential Clock Signals 35 Figure 12...

Page 8: ...viii List of Figures AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 9: ...able 8 Advanced 400 FSB AMD Athlon System Bus DC Characteristics 28 Table 9 Interface Signal Groupings 29 Table 10 VID 4 0 DC Characteristics 30 Table 11 FID 3 0 DC Characteristics 31 Table 12 VCCA AC...

Page 10: ...D 3 0 Clock Multiplier Encodings 74 Table 26 Front Side Bus Sense Truth Table 75 Table 27 VID 4 0 Code to Voltage Definition 78 Table 28 Constants and Variables for the Ideal Diode Equation 81 Table 2...

Page 11: ...le 6 Advanced 400 FSB SYSCLK and SYSCLK AC Characteristics on page 26 Figure 9 SYSCLK Waveform on page 26 Table 7 Advanced 400 FSB AMD Athlon System Bus AC Characteristics on page 27 and Table 8 Advan...

Page 12: ...xii Revision History AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 13: ...capability digital content creation digital photo editing digital video image compression video encoding for streaming over the Internet soft DVD commercial 3D modeling workstation class computer aide...

Page 14: ...Professional technology implemented in the AMD Athlon XP processor model 10 includes new integer multimedia instructions and software directed data movement instructions for optimizing such applicati...

Page 15: ...rocessor model 10 is compatible with motherboards based on Socket A Figure 1 shows a typical AMD Athlon XP processor model 10 system block diagram Figure 1 Typical AMD Athlon XP Processor Model 10 Sys...

Page 16: ...4 Overview Chapter 1 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 17: ...nce controlled push pull low voltage swing signaling technology contained within the Socket A socket For more information see AMD Athlon System Bus Signals on page 6 Chapter 11 Pin Descriptions on pag...

Page 18: ...nce of the motherboard by two external resistors connected to the ZN and ZP pins See ZN and ZP Pins on page 78 for more information 2 4 AMD Athlon System Bus Signals The AMD Athlon system bus is a clo...

Page 19: ...ram SDATA 63 0 SDATAINCLK 3 0 SDATAOUTCLK 3 0 Data SADDIN 14 2 SADDINCLK Probe SysCMD SADDOUT 14 2 SADDOUTCLK VID 4 0 FID 3 0 A20M CLKFWDRST CONNECT COREFB COREFB FERR IGNNE INIT INTR NMI PROCRDY PWRO...

Page 20: ...8 Logic Symbol Diagram Chapter 3 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 21: ...agement states of the processor The figure includes the ACPI Cx naming convention for these states Figure 3 AMD Athlon XP Processor Model 10 Power Management States C1 Halt C0 Working4 Execute HLT SMI...

Page 22: ...initiate a system bus connect if it is disconnected then issue a Stop Grant special cycle When STPCLK is deasserted the processor will exit the Stop Grant state and re enter the Halt state The proces...

Page 23: ...cognized If RESET is sampled asserted during the Stop Grant state the processor exits the Stop Grant state and the reset process begins There are two mechanisms for asserting STPCLK hardware and softw...

Page 24: ...robe state Halt or Stop Grant state When probe activity is completed the processor only returns to a low power state after the Northbridge disconnects the AMD Athlon system bus again 4 2 Connect and D...

Page 25: ...he Stop Grant special cycle to the Southbridge for systems that connect to the Southbridge with HyperTransport technology This note applies to current chipset implementation alternate chipset implemen...

Page 26: ...rant state 2 When the processor recognizes STPCLK asserted it enters the Stop Grant state and then issues a Stop Grant special cycle 3 When the special cycle is received by the Northbridge it deassert...

Page 27: ...oves the processor from the Stop Grant state and connects it to the system bus 1 The Southbridge deasserts STPCLK informing the processor of a wake event 2 When the processor recognizes STPCLK deasser...

Page 28: ...special cycle from the processor 4 No probes are pending 5 PROCRDY is deasserted 6 A probe needs service 7 PROCRDY is asserted 8 Three SYSCLK periods after CLKFWDRST is deasserted Although reconnecte...

Page 29: ...ST is deasserted by the Northbridge 6 Forward clocks start three SYSCLK periods after CLKFWDRST is deasserted Action A CLKFWDRST is asserted by the Northbridge B Issue a Connect special cycle C Return...

Page 30: ...Clock Control The processor implements a Clock Control CLK_Ctl MSR address C001_001Bh that determines the internal clock divisor when the AMD Athlon system bus is disconnected Refer to the AMD Athlon...

Page 31: ...rmation about the processor vendor type name etc and its capabilities Software can make use of this information to accurately tune the system for maximum performance and benefit to users For informati...

Page 32: ...20 CPUID Support Chapter 5 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 33: ...000 45 0 A 35 4 A 74 3 W 58 4 W Notes 1 See Figure 3 AMD Athlon XP Processor Model 10 Power Management States on page 9 2 The maximum Stop Grant currents are absolute worst case currents for parts tha...

Page 34: ...me 1 0 ns t3 Low Time 1 0 ns t4 Fall Time 2 ns t5 Rise Time 2 ns Period Stability 300 ps Notes 1 The AMD Athlon system bus operates at twice this clock frequency 2 Circuitry driving the AMD Athlon sys...

Page 35: ...Input Data Setup Time 300 ps 3 THD Input Data Hold Time 300 ps 3 CIN Capacitance on input clocks 4 25 pF COUT Capacitance on output clocks 4 12 pF Sync TVAL RSTCLK to Output Valid 800 2000 ps 4 5 TSU...

Page 36: ...VREF Nominal 100 A IVREF_LEAK_N VREF Tristate Leakage Pulldown VIN VREF Nominal 100 A VIH Input High Voltage VREF 200 VCC_CORE 500 mV VIL Input Low Voltage 500 VREF 200 mV ILEAK_P Tristate Leakage Pul...

Page 37: ...36 6 A 76 8 W 60 4 W Notes 1 See Figure 3 AMD Athlon XP Processor Model 10 Power Management States on page 9 2 The maximum Stop Grant currents are absolute worst case currents for parts that may yiel...

Page 38: ...1 0 ns t3 Low Time 1 0 ns t4 Fall Time 1 5 ns t5 Rise Time 1 5 ns Period Stability 300 ps Notes 1 The AMD Athlon system bus operates at twice this clock frequency 2 Circuitry driving the AMD Athlon s...

Page 39: ...Input Data Setup Time 300 ps 3 THD Input Data Hold Time 300 ps 3 CIN Capacitance on input clocks 4 25 pF COUT Capacitance on output clocks 4 12 pF Sync TVAL RSTCLK to Output Valid 800 2000 ps 4 5 TSU...

Page 40: ...VREF Nominal 100 A IVREF_LEAK_N VREF Tristate Leakage Pulldown VIN VREF Nominal 100 A VIH Input High Voltage VREF 150 VCC_CORE 500 mV VIL Input Low Voltage 500 VREF 150 mV ILEAK_P Tristate Leakage Pul...

Page 41: ...ontained in each group Table 9 Interface Signal Groupings Signal Group Signals Notes Power VID 4 0 VCCA VCC_CORE COREFB COREFB See Voltage Identification VID 4 0 on page 30 VID 4 0 Pins on page 77 VCC...

Page 42: ...e 77 INIT Pin on page 75 A20M Pin on page 72 FERR Pin on page 73 IGNNE Pin on page 75 STPCLK Pin on page 77 and FLUSH Pin on page 75 JTAG TMS TCK TRST TDI TDO See General AC and DC Characteristics on...

Page 43: ...0 DC Characteristics Parameter Description Min Max IOL Output Current Low 6 mA VOH Output High Voltage 2 625 V 1 VOH VCC_CORE 1 60 V 2 Note 1 The FID pins must not be pulled above 2 625 V which is equ...

Page 44: ...d DC Characteristics Symbol Parameter Limit in Working State Units VCC_CORE_DC_MAX Maximum static voltage above VCC_CORE_NOM 50 mV VCC_CORE_DC_MIN Maximum static voltage below VCC_CORE_NOM 50 mV VCC_C...

Page 45: ...aveform response to perturbation The tMIN_AC negative AC transient excursion time and tMAX_AC positive AC transient excursion time represent the maximum allowable time below or above the DC tolerance...

Page 46: ...s can adversely affect long term reliability or result in functional damage Table 14 lists the maximum absolute ratings of operation for the AMD Athlon XP processor model 10 Table 14 Absolute Ratings...

Page 47: ...CLK and SYSCLK signals Figure 11 SYSCLK and SYSCLK Differential Clock Signals Table 15 SYSCLK and SYSCLK DC Characteristics Symbol Description Min Max Units VThreshold DC Crossing before transition is...

Page 48: ...ltage range 2 Values specified at nominal VCC_CORE Scale parameters between VCC_CORE minimum and VCC_CORE maximum 3 IOL and IOH are measured at VOL maximum and VOH minimum respectively 4 Synchronous i...

Page 49: ...are specified with respect to RSTCLK and RSTCK at the pins 5 These are aggregate numbers 6 Edge rates indicate the range over which inputs were characterized 7 In asynchronous operation the signal mus...

Page 50: ...utomated test equipment ATE to test for validity on open drain pins Refer to Table 16 General AC and DC Characteristics on page 36 for timing requirements Figure 12 General ATE Open Drain Test Circuit...

Page 51: ...de Calculations on page 77 Thermal Protection Characterization The following section describes parameters relating to thermal protection The implementation of thermal control circuitry to control proc...

Page 52: ...AMD Athlon Processor Based Motherboard Design Guide order 24363 AMD Thermal Mechanical and Chassis Cooling Design Guide order 23794 See http www amd com for more information about thermal solutions Ta...

Page 53: ...VCC_CORE VCC_CORE_MAX VOH VCC_CORE 1 60 V V 3 VOL Output Low Voltage 300 400 mV ILEAK_P Tristate Leakage Pullup VIN VSS Ground 1 mA ILEAK_N Tristate Leakage Pulldown VIN 2 5 V 1 mA IOL Output Low Curr...

Page 54: ...42 Electrical Data Chapter 8 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 55: ...and Timing Description Figure 13 shows the relationship between key signals in the system during a power up sequence This figure details the requirements of the processor Figure 13 Signal Relationship...

Page 56: ...conds from the 3 3 V supply being within specification This delay ensures that the system clock SYSCLK SYSCLK is operating within specification when PWROK is asserted The processor core voltage VCC_CO...

Page 57: ...eet the timing requirements as defined in Table 12 General AC and DC Characteristics on page 34 The processor should not switch between the ring oscillator and the PLL after the initial assertion of P...

Page 58: ...0 code The SIP is sent to the processor using the SIP protocol This protocol uses the PROCRDY CONNECT and CLKFWDRST signals that are synchronous to SYSCLK For more information about FID 3 0 see FID 3...

Page 59: ...from the die to an approved heat sink Any heat sink design should avoid loads on corners and edges of die The OPGA package has compliant pads that serve to bring surfaces in planar contact Tool assist...

Page 60: ...Symbol Minimum Dimension1 Maximum Dimension1 Letter or Symbol Minimum Dimension1 Maximum Dimension1 D E 49 27 49 78 E9 1 66 1 96 D1 E1 45 72 BSC G H 4 50 D2 7 42 REF A 1 942 REF D3 3 30 3 60 A1 1 00 1...

Page 61: ...Chapter 10 Mechanical Data 49 26237C May 2003 AMD Athlon XP Processor Model 10 Data Sheet Preliminary Information Figure 14 AMD Athlon XP Processor Model 10 Part Number 27488 OPGA Package Diagram...

Page 62: ...ter or Symbol Minimum Dimension1 Maximum Dimension1 Letter or Symbol Minimum Dimension1 Maximum Dimension1 D E 49 27 49 78 G H 4 50 D1 E1 45 72 BSC A 1 917 REF D2 7 42 REF A1 0 977 1 177 D3 3 30 3 60...

Page 63: ...Chapter 10 Mechanical Data 51 26237C May 2003 AMD Athlon XP Processor Model 10 Data Sheet Preliminary Information Figure 15 AMD Athlon XP Processor Model 10 Part Number 27493 OPGA Package Diagram...

Page 64: ...52 Mechanical Data Chapter 10 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 65: ...ations and a cross referenced listing of pin locations to signal names 11 1 Pin Diagram and Pin Name Abbreviations Figure 16 on page 54 shows the staggered Pin Grid Array PGA for the AMD Athlon XP pro...

Page 66: ...C VSS VSS VSS VSS R S SCNCK1 SCNINV SCNCK2 THDA NC SD 7 SD 15 SD 6 S T VSS VSS VSS VSS VCC VCC VCC VCC T U TDI TRST TDO THDC NC SD 5 SD 4 NC U V VCC VCC VCC VCC VSS VSS VSS VSS V W FID 0 FID 1 VREF_S...

Page 67: ...EY NC CLKIN CLKIN 17 18 VSS VSS VSS VSS VCC VCC VCC VCC 18 19 NC SD 59 SD 58 NC NC NC RCLK RCLK 19 20 VCC VCC VCC VCC VSS VSS VSS VSS 20 21 SD 57 SD 56 SD 36 NC NC CLKFR K7CO K7CO 21 22 VSS VSS VSS VS...

Page 68: ...AG1 FID 0 W1 FID 1 W3 FID 2 Y1 FID 3 Y3 FLUSH AL3 FSB0 FSB_Sense 0 AG31 FSB1 FSB_Sense 1 AH30 IGNNE AJ1 INIT AJ3 INTR AL1 K7CO K7CLKOUT AL21 K7CO K7CLKOUT AN21 KEY G7 KEY G9 KEY G15 KEY G17 KEY G23 K...

Page 69: ...me Abbreviations continued Abbreviation Full Name Pin NC AJ19 NC AJ27 NC AK8 NC AL7 NC AL9 NC AL11 NC AL25 NC AL27 NC AM8 NC AN7 NC AN9 NC AN11 NC AN25 NC AN27 NMI AN3 PICCLK N1 PICD 0 PICD 0 N3 PICD...

Page 70: ...SCANCLK2 S5 SCNINV SCANINTEVAL S3 SCNSN SCANSHIFTEN Q5 SD 0 SDATA 0 AA35 SD 1 SDATA 1 W37 SD 2 SDATA 2 W35 Table 23 Pin Name Abbreviations continued Abbreviation Full Name Pin SD 3 SDATA 3 Y35 SD 4 S...

Page 71: ...INCLK 0 W33 SDIC 1 SDATAINCLK 1 J35 SDIC 2 SDATAINCLK 2 E27 SDIC 3 SDATAINCLK 3 E15 SDINV SDATAINVALID AN33 SDOC 0 SDATAOUTCLK 0 AE35 SDOC 1 SDATAOUTCLK 1 C37 Table 23 Pin Name Abbreviations continued...

Page 72: ...CORE T36 VCC VCC_CORE V2 VCC VCC_CORE V4 VCC VCC_CORE V6 VCC VCC_CORE V8 Table 23 Pin Name Abbreviations continued Abbreviation Full Name Pin VCC VCC_CORE X30 VCC VCC_CORE X32 VCC VCC_CORE X34 VCC VCC...

Page 73: ...AJ23 VID 0 L1 VID 1 L3 VID 2 L5 VID 3 L7 VID 4 J7 VREF_S VREF_SYS W5 VSS B2 VSS B6 VSS B10 VSS B14 VSS B18 VSS B22 VSS B26 VSS B30 VSS B34 VSS D6 VSS D10 VSS D14 VSS D18 Table 23 Pin Name Abbreviation...

Page 74: ...VSS AB4 VSS AB6 VSS AD32 VSS AD34 VSS AD36 VSS AF2 VSS AF4 VSS AF12 VSS AF16 VSS AH12 VSS AH16 VSS AH20 VSS AH24 VSS AH28 VSS AH32 VSS AH34 Table 23 Pin Name Abbreviations continued Abbreviation Full...

Page 75: ...push pull mode driven by a single source O indicates open drain mode that allows devices to share the pin Note The AMD Athlon processor supports push pull drivers For more information see Push Pull PP...

Page 76: ...P A35 SDATA 40 P B G A37 SDATA 30 P B P B2 VSS B4 VCC_CORE B6 VSS B8 VCC_CORE B10 VSS B12 VCC_CORE B14 VSS B16 VCC_CORE B18 VSS B20 VCC_CORE B22 VSS B24 VCC_CORE B26 VSS B28 VCC_CORE B30 VSS B32 VCC_...

Page 77: ...SDATA 46 P B P E25 NC Pin page 76 E27 SDATAINCLK 2 P I G E29 SDATA 33 P B P E31 SDATA 32 P B P Table 24 Cross Reference by Pin Location Pin Name Description L P R E33 NC Pin page 76 E35 SDATA 31 P B P...

Page 78: ...in page 76 H32 NC Pin page 76 H34 VSS H36 VSS J1 SADDOUT 0 page 77 P O J3 SADDOUT 1 page 77 P O Table 24 Cross Reference by Pin Location Pin Name Description L P R J5 NC Pin page 76 J7 VID 4 page 77 O...

Page 79: ...G Q37 SDATA 16 P B G R2 VCC_CORE R4 VCC_CORE R6 VCC_CORE R8 VCC_CORE R30 VSS R32 VSS Table 24 Cross Reference by Pin Location Pin Name Description L P R R34 VSS R36 VSS S1 SCANCLK1 page 77 P I S3 SCA...

Page 80: ...age 76 Y33 NC Pin page 76 Y35 SDATA 3 P B G Y37 SDATA 12 P B P Z2 VCC_CORE Z4 VCC_CORE Table 24 Cross Reference by Pin Location Pin Name Description L P R Z6 VCC_CORE Z8 VCC_CORE Z30 VSS Z32 VSS Z34 V...

Page 81: ...AF28 NC Pin page 76 Table 24 Cross Reference by Pin Location Pin Name Description L P R AF30 NC Pin page 76 AF32 NC Pin page 76 AF34 VCC_CORE AF36 VCC_CORE AG1 FERR page 73 P O AG3 RESET I AG5 NC Pin...

Page 82: ...DIN 0 page 77 P I AJ31 SFILLVALID P I G AJ33 SADDINCLK P I G AJ35 SADDIN 6 P I P AJ37 SADDIN 3 P I G Table 24 Cross Reference by Pin Location Pin Name Description L P R AK2 VSS AK4 VSS AK6 CPU_PRESENC...

Page 83: ...6 VCC_CORE AM28 VSS AM30 VCC_CORE AM32 VSS AM34 VCC_CORE AM36 VSS AN1 No Pin page 76 AN3 NMI P I AN5 SMI P I AN7 NC Pin page 76 AN9 NC Pin page 76 Table 24 Cross Reference by Pin Location Pin Name Des...

Page 84: ...Duron System Bus Specification order 21902 for information about the system bus pins PROCRDY PWROK RESET SADDIN 14 2 SADDINCLK SADDOUT 14 2 SADDOUTCLK SDATA 63 0 SDATAINCLK 3 0 SDATAINVALID SDATAOUTCL...

Page 85: ...vide processor core voltage feedback to the system CPU_PRESENCE Pin CPU_PRESENCE is connected to VSS on the processor package If pulled up on the motherboard CPU_PRESENCE may be used to detect the pre...

Page 86: ...about Serialization Initialization Packets and SIP protocol The processor FID 3 0 outputs are open drain and 2 5 V tolerant To prevent damage to the processor do not pull these Table 25 FID 3 0 Clock...

Page 87: ...ont side bus FSB setting of this processor Proper detection of the FSB setting requires the implementation of a pull up resistor on the motherboard Refer to the AMD Athlon Processor Based Motherboard...

Page 88: ...GA key pins only where designated However sockets that populate all 16 key pins must be allowed so the motherboard must always provide for pins at all key pin locations See NC Pins for more informatio...

Page 89: ...YSCLK and SYSCLK SYSCLK and SYSCLK are differential input clock signals provided to the PLL of the processor from a system clock generator See CLKIN RSTCLK SYSCLK Pins on page 73 for more information...

Page 90: ...24363 ZN and ZP Pins ZN AC5 and ZP AE5 are the push pull compensation circuit pins In Push Pull mode selected by the SIP parameter SysPushPull asserted ZN is tied to VCC_CORE with a resistor that has...

Page 91: ...4 OPN1 Advanced Front Side Bus D 333 E 400 Size of L2 Cache 4 512 Kbytes Die Temperature V 85 C Operating Voltage K 1 65 V Package Type D OPGA Model Number 2500 operates at 1833 MHz2 2600 at 1917 MHz2...

Page 92: ...80 Ordering Information Chapter 12 AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 93: ...10 For electrical information about this thermal diode see Table 13 Thermal Diode Electrical Characteristics on page 37 Ideal Diode Equation The ideal diode equation uses the variables and constants d...

Page 94: ...Correction A temperature offset may be required to correct the value measured by a temperature sensor An offset is necessary if a difference exists between the lumped ideality factor of the processor...

Page 95: ...r further details Equation 3 shows the equation for calculating the lumped ideality factor nf lumped in sensors that do not employ series resistance cancellation Equation 4 shows the equation for calc...

Page 96: ...84 Appendix A Thermal Diode Calculations AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

Page 97: ...lowest signal numbers are contained in brackets and separated by a colon for example D 63 0 Reserved Bits and Signals Signals or bus bits marked reserved must be driven inactive or left unconnected as...

Page 98: ...gnificant byte position little end In byte diagrams bit positions are numbered from right to left the little end is on the right and the big end is on the left Data structure diagrams in memory show l...

Page 99: ...in this document Table 30 Abbreviations Abbreviation Meaning A Ampere F Farad G Giga Gbit Gigabit Gbyte Gigabyte GHz Gigahertz H Henry h Hexadecimal K Kilo Kbyte Kilobyte lbf Foot pound M Mega Mbit Me...

Page 100: ...terconnect API Application Programming Interface APIC Advanced Programmable Interrupt Controller BIOS Basic Input Output System BIST Built In Self Test BIU Bus Interface Unit CPGA Ceramic Pin Grid Arr...

Page 101: ...Open Drain OPGA Organic Pin Grid Array PA Physical Address PBGA Plastic Ball Grid Array PCI Peripheral Component Interconnect PDE Page Directory Entry PDT Page Directory Table PGA Pin Grid Array PLL P...

Page 102: ...n SRAM Synchronous Random Access Memory SROM Serial Read Only Memory TLB Translation Lookaside Buffer TOM Top of Memory TTL Transistor Transistor Logic VAS Virtual Address Space VPA Virtual Page Addre...

Page 103: ...Web site http www amd com AMD Athlon Processor x86 Code Optimization Guide order 22007 AMD Processor Recognition Application Note order 20734 Methodologies for Measuring Temperature on AMD Athlon and...

Page 104: ...92 Appendix B Conventions and Abbreviations AMD Athlon XP Processor Model 10 Data Sheet 26237C May 2003 Preliminary Information...

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