AMD 8 manual

Preliminary Information AM D Athlon X P Pr oc essor Model 8 Data Sheet Publication # 25175 Rev. H Issue Date: March 2003 TM[...]

Preliminary Information T rademarks AMD, the AMD Arro w logo, AMD Athlon, AMD Duron, and combinatio ns thereof , QuantiSpeed, an d 3DNow! ar e tr ademarks of Ad vanced Micr o Devices, Inc. HyperT ransport is a licensed trademar k o f the HyperT r ansport T ec hnolog y Consortium. MMX is a trademar k of Inte l Corpor atio n. Windo ws is a register e[...]

T able of Contents 3 25 1 7 5H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Contents Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 QuantiSpeed™[...]

4 T able of Contents AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 8.1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 8.2 Interface Signal Groupings . . . .[...]

T able of Contents 5 25 1 7 5H — M arch 2003 AM D Athlon™ XP Pr oce ssor Model 8 Data Sheet Preliminary Information CLKIN , RSTCLK (SYSCLK) Pins . . . . . . . . . . . . . . . . . . . . 74 CONNECT Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 COREFB and COREFB# Pins . . . . . . . . . . . . . . . . . . . . . . . 75 [...]

6 T able of Contents AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

List of Figures 7 25 1 7 5H — M arch 2003 AM D Athlon™ XP Pr oce ssor Model 8 Data Sheet Preliminary Information List of Figures Figure 1. Typical AMD Athlon™ XP Processor Model 8 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2. Logic Symbol Diagram . . . . . . . . . . . . . . . [...]

8 List of Figures AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

List of T ables 9 25 1 7 5H — M arch 2003 AM D Athlon™ XP Pr oce ssor Model 8 Data Sheet Preliminary Information List of T ables Table 1. Electrical and Thermal Specifications for Processors with a CPUID of 680 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 2. Electrical and Thermal Specifications for Processors [...]

10 List of T ables AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Table 28. VID[4:0] Code to Voltage Definition . . . . . . . . . . . . . . . . . . . . . 80 Table 29. Constants and Variables for the Ideal Diode Equation . . . . . . 83 Table 30. Constants and Variables Used in Temperatu re Offset Equat[...]

Revision History 11 25 1 7 5H — M arch 2003 AM D Athlon™ XP Pr oce ssor Model 8 Data Sheet Preliminary Information Revision History Date Rev Description March 20 03 H Public revision H of the AMD Athlon™ XP Processor Model 8 Data Sheet includes the following changes: ■ In Chapter 6, revised T able 2, “Electric al and Thermal Specific atio[...]

12 Revision History AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information October 2002 D Public revision D of the AMD Athlon™ XP Processor Model 8 Data Sheet includes the following changes: ■ In Chapte r 1, revised wording in Overvie w . ■ In Chapter 6, revised T able 2, “Electric al and Thermal Spec[...]

Chapter 1 Overview 1 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1O v e r v i e w The AM D Athlon™ X P processor model 8 with QuantiSpeed™ architecture po wers the next generation in compu ting platforms, delivering extr eme performance for Windo ws ® XP . T he AMD Athlon™ XP pr ocesso r mo[...]

2 Overview Chapter 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T he featur es of the AMD Athlon XP pr ocessor model 8 ar e QuantiSpeed™ arc hitectur e, a high-performance full-speed cac he, an ad v anced 333 fron t-side Bus (FSB) with a 2.7-Giga b yte per second system bus, or an ad v anced 266[...]

Chapter 1 Overview 3 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information T he AMD Athlon XP processor model 8 deli v ers excellent system perf ormance in a cost-e ffectiv e, industry-standar d f orm factor . The AMD Athlon XP proc essor model 8 is compatible with motherboar ds based on Sock et A. F igur e[...]

4 Overview Chapter 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

Chapter 2 Interface Signals 5 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 2 Interface Signals T his section describes the inte rf ace signals utilized by the AMD Athlon™ XP processor model 8. 2. 1 Overview T he AMD Athlon™ system bus arc hitectur e is designed to deli ver e x cellent data mo v[...]

6 Interface Signals Chapter 2 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 2.3 Push-Pull (P P) Drivers T he AMD Athlon XP processor model 8 suppor ts push-pull (PP) dri v ers. T he system logic configur es the pr ocess or with the configur ation parameter ca lled SysPushPull (1=PP). T he impedance o[...]

Chapter 3 Logic Symbol Diagram 7 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 3 Logic Symbol Diagr am F igur e 2 is the logic symbol di agr am of the pr ocessor . T his diagr am shows the lo gical grou ping of the input and output signals. Figure 2. Logic S ymbol Diagram SDA T A[63:0]# SDA T AINC L[...]

8 Logic Symbol Di agram Chapter 3 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

Chapter 4 Power Management 9 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 4 P ower Management T his c hapter describes the po w er management control system of the AMD Athlon™ XP processor model 8. T he pow er management featur es of the processor ar e compliant with the A CPI 1.0b and A CPI 2.0 [...]

10 Power Management Chapter 4 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T he f ollo wing sections pro vide an ov er view of the pow er management states. F or mor e details, refer to the AMD Athlon™ System Bus Specifica tion , or der# 21902. Note: In all power management sta tes tha t the proce[...]

Chapter 4 Power Management 11 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information places the pr ocessor into the higher po we r pr obe state. After the Northbridge has completed all pr obes of the processor , the Northbridge m ust disconnect the AMD Athlon system bus again so that the processor can r etur[...]

12 Power Management Chapter 4 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T he Stop Gr ant state is also entered f or the S1, P ow er ed On Suspend, system sleep state bas ed on a write to the SLP_TYP and SLP_EN fields in the A CPI- defined P o wer Management 1 contr ol register in the Southbri dge[...]

Chapter 4 Power Management 13 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information T he Northbridge contains BIOS progr ammable r egisters to enable the system bus disconnect in r esponse to Halt and Stop Gr ant special cycles. W hen the Northbridge recei v es the Halt or Stop Gr ant special cycle fr om t [...]

14 Power Management Chapter 4 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information F igur e 4 shows STPCLK# assertion r esulting in the pr ocessor in the Stop Gr ant state and the AMD Athlon system bus disconnected. Figure 4. AMD Athlon™ System Bus D isconnect Sequence in the Stop Gr ant State An example [...]

Chapter 4 Power Management 15 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information F igur e 5 shows the signal seque nce of e vents that tak es the pr ocessor out of the Stop Gr ant state, connects the processor to the AMD Athlon system bus, and puts the processor into the W orking state. Figure 5. Exiting[...]

16 Power Management Chapter 4 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Connect State Diagram F igur e 6 below and F igur e 7 on page 17 sho w the Northbridge and pr ocessor connect state diagrams, r especti vel y . Figure 6. Northbridge Connect State Diagram Condition 1 A disconnect is requested[...]

Chapter 4 Power Management 17 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Figure 7 . Processor Connect State Diagram Condition 1 CONNECT is deasserted by the Northbridge (for a previously sent Halt or Stop Grant special cycle). 2 Processor receives a wake-up event and must cancel the disconnect re[...]

18 Power Management Chapter 4 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 4.3 Clock Control T he processor implements a Cloc k Control (CLK_Ctl) MSR (addr ess C001_001Bh) that det ermines the internal cloc k di visor when the AMD Athlon system bus is disconnected. Refer to the AMD Athlon™ and AMD[...]

Chapter 5 CPUID Support 19 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 5 CP U I D Support AMD Athlon™ XP processor model 8 v ersion and featur e set r ecognition can be perf ormed through the use of the CPUID instruction, that pr ovides co mplete inf ormation about the pr ocessor—v endor , typ[...]

20 CPU I D Support Chapter 5 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

Chapter 6 Advanced 266 Front-Side Bus AMD Ath lon™ XP Processor Model 8 Specifications 21 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 6 Advanced 266 Fr ont- Side Bus AM D Athlon™ X P Proc essor Model 8 Specifications T his c hapter describes the electrical specifications that are unique to the[...]

22 Advanced 266 Front- Side Bus AM D Athlon™ XP Processor Model 8 Specifications Chapter 6 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T able 1 sho ws the part-specif ic electrical and thermal specifications in the C0 w orking state and the S1 Stop Gr ant state f or processor s with a CPUID = 680[...]

Chapter 6 Advanced 266 Front-Side Bus AMD Ath lon™ XP Processor Model 8 Specifications 23 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information T able 2 sho ws the part-specif ic electrical and thermal specifications in the C0 w orking state and the S1 Stop Gr ant state f or processor s with a CPUID = 681[...]

24 Advanced 266 Front- Side Bus AM D Athlon™ XP Processor Model 8 Specifications Chapter 6 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 6.2 Advanced 266 FS B AM D Athlon™ XP Processor Model 8 SYS C L K a n d SYS C L K # A C C h a r a c t e r i s t i c s T able 3 sho ws the SYSCLK/SYS CLK# differ[...]

Chapter 6 Advanced 266 Front-Side Bus AMD Ath lon™ XP Processor Model 8 Specifications 25 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 6.3 Advanced 266 F S B AM D Athlon™ System Bus AC Char acteristics T h e A C char acteristics f or the AMD Athlon system bus of this pr ocessor ar e shown in T [...]

26 Advanced 266 Front- Side Bus AM D Athlon™ XP Processor Model 8 Specifications Chapter 6 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

Chapter 7 Advanced 333 Front-Side Bus AMD Ath lon™ XP Processor Model 8 Specifications 27 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 7 Advanced 333 Fr ont- Side Bus AM D Athlon™ X P Proc essor Model 8 Specifications T his c hapter describes the electrical specifications that are unique to the[...]

28 Advanced 333 Front-Side Bus AMD Athlon™ XP Processor Model 8 Specifications Chapter 7 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 7 .2 Advanced 333 F S B AM D Athlon™ XP Proc essor Model 8 SYS C L K a n d SYS C L K # A C C h a r a c t e r i s t i c s T able 6 sho ws the SYSCLK/SY SCLK# diffe[...]

Chapter 7 Advanced 333 Front-Side Bus AMD Ath lon™ XP Processor Model 8 Specifications 29 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 7 .3 Advanced 333 F S B AM D Athlon™ System Bus AC Char acteristics T he A C char acteristics of the AMD Athlon system bus of this pr ocessor ar e shown in T ab[...]

30 Advanced 333 Front-Side Bus AMD Athlon™ XP Processor Model 8 Specifications Chapter 7 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

Chapter 8 Electrical Data 31 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 8 Electrical Data T his chapter describes the elec trical c har acteristics that apply to all desktop AMD Athlon™ XP pr ocessor s model 8. 8. 1 Conv entions T he con ventions used in this c hapter are as f ollows: ■ Curr [...]

32 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Powe r VID[4:0], VCCA, V CC_C ORE , C OREFB , C OREFB # See “V oltage Identification (VID [4:0])” on page 33, “VID[4:0] Pins” on page 7 8,“VCCA AC and DC Characteristics” on page 3 3, “V CC_C OR E Characteristics[...]

Chapter 8 Electrical Data 33 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 8.3 V oltage Identification (VI D[4:0]) T able 9 sho ws the VID[4:0] DC Ch aracteristics. F or more inf or- mation on VID[4:0] DC Char acteri stics, see “VID[4:0] Pins” on page 78. 8.4 Frequency Identification (FI D[3:0])[...]

34 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8.6 Decoupling See the AMD Athlon™ Processor -Based Motherboard Design Guide , or der# 24363, or contact your local AMD office f or inf ormation about the decoupling r equir ed on the motherboard f or use with the AMD Athlon[...]

Chapter 8 Electrical Data 35 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information F igur e 10 shows the pr ocessor cor e v oltage (V CC_CORE ) w av ef orm response to perturbation. T he t min_A C (negativ e A C tr ansient excursion time) and t max_A C (positiv e A C tr ansient excur sion time) r epr esent [...]

36 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8.8 Absolute Ratings T he AMD Athlon XP pr ocessor m odel 8 should not be subjected to conditions exceeding the a bsolu te ratings, as suc h conditions can ad ver sely affect long-term r eli ability or r esult in functional da[...]

Chapter 8 Electrical Data 37 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 8.9 S YSC LK and SY SC LK# DC Characteristics T able 14 sho ws the DC char ac teristics of the SYSCLK and SYSCLK# differ ential cloc ks. T he SYSCLK signal r epresents CLKIN and RSTCLK tied toget her while the SY SCLK# signal[...]

38 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8. 1 0 AM D Athlon™ System Bus DC Characteristics T able 15 sho ws the DC char ac teristics of the AMD Athlon system bus used b y the AMD A thlon XP processor model 8. T able 1 5. AM D Athlon™ S y stem Bus DC Characteristi[...]

Chapter 8 Electrical Data 39 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 8. 1 1 General AC and DC Characteristics T able 16 sho ws the AMD Athlon XP pr ocessor model 8 A C and DC c h ar acteristics of the Sout hbridge, JT A G, test, and miscel- laneous pins. T able 1 6. General AC and DC Character[...]

40 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T BIT Input Time to Acqu ire 20.0 ns 7, 8 T RPT Inpu t Time to Reacquire 40.0 ns 9–1 3 T RISE Signal Rise Time 1 .0 3.0 V/ns 6 T FA L L Signal Fall Time 1 .0 3.0 V/ns 6 C P IN Pin Capacitance 4 1 2 pF T VA L I D Time to data[...]

Chapter 8 Electrical Data 41 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 8. 1 2 Op en -D ra in T es t Ci rcu it F igur e 12 is a test cir cuit that ma y be used on automated test equipment (A TE) to test f or v alidity on open drain pins. Refer to T able 16, “General A C and DC Characteristics, [...]

42 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8. 1 3 Thermal Diode Characteristics T h e AMD Athlon XP processor m odel 8 pr ovides a diode that can be used in conjunction with an external temper atur e sensor to determine the die temper atur e of the pr ocessor . The di [...]

Chapter 8 Electrical Data 43 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Thermal Protection Characterization T h e f ollowing section describes pa r ameters r elating to thermal pr otection. The implementation of thermal contr ol cir cuitry to contr o l pr ocessor temperatur e is left to the manuf[...]

44 Electrical Data Chapter 8 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 8. 1 4 AP I C Pins AC and DC Characteristics T able 19 sho ws the AMD Athlon XP processor model 8 A C and DC c haracteristics of the APIC pins. T able 1 8. Guidelines for Platform Thermal Protection of the Processor Symbol Par[...]

Chapter 9 Signal and Power-Up Requirements 45 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 9 Signal and P ow e r-Up Requir ements T he AMD Athlon™ XP pr ocessor m odel 8 is designed to pro vide functional oper ation if the v olt age and temper atur e parameter s ar e within the limits of normal o[...]

46 Signal and Power-Up Requirements Chapter 9 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Po we r - U p T i mi n g Requirements. T he signal timing requir ements ar e as f ollows: 1. RESET# must be asserted bef or e PWR OK is asserted. T he AMD Athlon XP processor model 8 does not set the corr ect [...]

Chapter 9 Signal and Power-Up Requirements 47 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information clock m ust be v alid at this time. The system cloc ks ar e designed to be running af ter 3.3 V has been within specification f or th r ee milliseconds. 4. PWR OK assertion to deassertion of RESET# T he dur a[...]

48 Signal and Power-Up Requirements Chapter 9 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Clock Multiplier Selection (FI D[3:0]) T he chipset samples the FID[3:0] signals in a c hipset-specific manner fr om the pr ocessor and uses this inf ormation to determine the corr ect serial in itialization p[...]

Chapter 10 Mechanical Data 49 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1 0 Mechanical Data T he AMD Athlon™ XP processo r model 8 connects to the motherboar d through a Pin Grid Arr a y (PGA) sock et named Soc ket A. This pr oc essor utilizes the organic pin grid arr a y (OPGA) package type d[...]

50 Mechanical Data Chapter 1 0 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 1 0.2 P art Number 2 729 1 O PG A Pa ckage Dimensions for AM D Athlon™ XP Processors Model 8 with a CPU I D of 680 F or AMD Athlon XP processor s model 8 with a CPUID of 680, T able 21 sho ws the 27291 OP GA package dimens[...]

Chapter 10 Mechanical Data 51 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1 0.3 P art Number 2 729 1 O PG A Pa ckage Dimensions for AM D Athlon™ XP Processors Model 8 with a CPU I D of 68 1 F or AMD Athlon XP processor s model 8 with a CPUID of 681, T able 22 sho ws the 27291 OP GA package dimen[...]

52 Mechanical Data Chapter 1 0 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Figure 1 4. AM D Athlon™ XP Processor Model 8 P art Number 2729 1 OPGA Package[...]

Chapter 10 Mechanical Data 53 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1 0.4 Part Number 2 7 648 O PGA Package Dimensions for AM D Athlon™ XP Processors Model 8 with a CPU I D of 68 1 F or AMD Athlon XP processor s model 8 with a CPUID of 681, T able 23 sho ws the part nu mber 27648 OPGA pack[...]

54 Mechanical Data Chapter 1 0 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Figure 1 5. AM D Athlon™ XP Processor Model 8 P art Number 27648 OPGA P ackage[...]

Chapter 11 Pin Descriptions 55 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1 1 Pin Descriptions T his c hapter includes pin diagrams of the or ganic pin grid arr ay (OPGA) f or the AMD Athlon™ XP processor model 8, a listing of pin name ab br eviations, and a cr oss-r efer enced listing of pin l[...]

56 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 123456 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 A SAO#1 2 SAO#5 SAO#3 SD#55 SD#61 SD#53 SD#63 SD#62 NC SD#57 SD#39 SD#35 SD#3 4 S D#44 NC SDOC#2 S[...]

Chapter 1 1 Pin Descriptions 57 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information A B C D E F G H J K L M N P Q R S T U V W X Y Z AA AB AC AD AE AF AG AH AJ AK AL AM AN 1 SAO#7 SAO#1 1 SAO#1 0 SAO#0 VID[0] PICCLK TCK SCNCK1 TDI FID[0] FID[2] DBRDY STPC# A20M# FERR IGNNE# INTR 1 2 VSS VCC VSS VCC VSS VCC[...]

58 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T able 24. Pin Name Abbreviations Abbreviation F ull Name Pin A20M# AE1 AMD A H6 ANLOG ANAL OG AJ1 3 CLKFR CLKFWDRST AJ2 1 CLKIN AN 1 7 CLKIN# AL1 7 CNNCT C ONN ECT AL 23 CO R E F B AG 1 1 CO R E F B # AG 1 3 C PR # CPU _PR[...]

Chapter 11 Pin Descriptions 59 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information NC Q3 1 NC S3 1 NC U3 1 NC U37 NC W7 NC W3 1 NC Y5 NC Y3 1 NC Y33 NC A A5 NC A A3 1 NC AC7 NC AC3 1 NC AD8 NC AD30 NC AE7 NC AE3 1 NC AF6 NC AF8 NC AF1 0 NC AF28 NC AF30 NC AF32 NC AG5 NC AG1 9 NC AG2 1 NC AG23 NC AG25 NC A[...]

60 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information SAI#5 SADDIN[5]# AE33 SAI#6 SADDIN[6]# A J35 SAI#7 SADDIN[7]# AG37 SAI#8 SADDIN[8]# AL33 SAI#9 SADDIN[9]# AN37 SAI#1 0 SADDI N[1 0]# AL3 7 SAI#1 1 SADDI N[1 1]# AG35 SAI#1 2 SADDI N[1 2]# AN29 SAI#1 3 SADDI N[1 3]# AN35 SAI[...]

Chapter 11 Pin Descriptions 61 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information SD#37 SDA T A[3 7]# C23 SD#38 SDA T A[38 ]# C27 SD#39 SDA T A[39 ]# A23 SD#40 SDA T A[40]# A35 SD#4 1 SDA T A[4 1]# C35 SD#42 SDA T A[42]# C33 SD#43 SDA T A[43]# C3 1 SD#44 SDA T A[44]# A29 SD#45 SDA T A[45]# C29 SD#46 SDA [...]

62 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information VCC V C C_COR E F24 VCC V C C_COR E F28 VCC V C C_COR E F32 VCC V C C_COR E F34 VCC V C C_COR E F36 VCC V C C_COR E H2 VCC V C C_COR E H4 VCC V C C_COR E H1 2 VCC V C C_COR E H1 6 VCC V C C_COR E H20 VCC V C C_COR E H24 VCC[...]

Chapter 11 Pin Descriptions 63 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information VCC V C C_COR E AK34 VCC V C C_COR E AK36 VCC V C C_COR E AJ 5 VCC V C C_COR E AL5 VCC V C C_COR E AM2 VCC V C C_COR E AM1 0 VCC V C C_COR E AM1 4 VCC V C C_COR E AM1 8 VCC V C C_COR E AM22 VCC V C C_COR E AM26 VCC V C C_CO[...]

64 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information VS S T2 VS S T4 VS S T6 VS S T8 VS S V30 VS S V32 VS S V34 VS S V36 VS S X2 VS S X4 VS S X6 VS S X8 VS S Z30 VS S Z32 VS S Z34 VS S Z36 VS S AB2 VS S AB8 VS S AB4 VS S AB6 VS S AD32 VS S AD34 VS S AD36 VS S AF2 VS S AF4 VS [...]

Chapter 11 Pin Descriptions 65 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 11. 2 P i n L i s t T able 25 on page 66 cr oss-r efer e nces Soc ket A pin location to signal name. T he “L ” (Le vel) column sho ws th e electrical specification f or this pin. “P” indicates a push - pull mode dri[...]

66 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T able 25. Cross-Reference by Pin Location Pin Name Description L P R A1 No Pin page 78 - - - A3 SADDOUT[1 2]# P O G A5 SADDOUT[5]# P O G A7 SADDOUT[3]# P O G A9 S DA T A[55 ]# P B P A1 1 S DA T A[6 1]# P B P A1 3 S DA T A [...]

Chapter 11 Pin Descriptions 67 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information D 1 0 V S S --- D1 2 V CC_CORE --- D 1 4 V S S --- D1 6 V CC_CORE --- D 1 8 V S S --- D20 V C C_CORE --- D 2 2 V S S --- D24 V C C_CORE --- D 2 6 V S S --- D28 V C C_CORE --- D 3 0 V S S --- D32 V C C_CORE --- D 3 4 V S S -[...]

68 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information G1 9 NC Pin page 78 - - - G2 1 NC Pin page 78 - - - G23 Key Pin page 78 - - - G25 Key Pin page 78 - - - G27 NC Pin page 78 - - - G29 NC Pin page 78 - - - G3 1 NC Pin page 78 - - - G33 S DA T A[20] # P B G G35 S DA T A[23] #[...]

Chapter 11 Pin Descriptions 69 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information N1 PICCLK page 7 4 O I - N3 PICD#[0] page 74 O B - N5 PICD#[1] page 74 O B - N7 Key Pin page 78 - - - N3 1 NC Pin page 78 - - - N33 S DA T A [25]# P B P N35 S DA T A [27]# P B P N37 S DA T A[1 8]# P B G P 2 V S S --- P 4 V [...]

70 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information V 3 0 V S S --- V 3 2 V S S --- V 3 4 V S S --- V 3 6 V S S --- W1 F I D[0] page 7 6 O O - W3 F I D[1] page 7 6 O O - W5 VR E F SYS page 80 P - - W7 NC Pin page 7 8 - - - W3 1 NC Pin page 78 - - - W33 SDA T AINCLK[0]# P I G[...]

Chapter 11 Pin Descriptions 71 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information AD2 V CC_C ORE --- AD4 V CC_C ORE --- AD6 V CC_C ORE --- AD8 NC Pin page 7 8 - - - AD30 NC Pin page 7 8 - - - AD32 VSS - - - AD34 VSS - - - AD36 VSS - - - AE1 A20M# P I - AE3 P WROK P I - AE5 Z P page 80 P - - AE7 NC - - - [...]

72 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information A H 1 6 V S S --- AH1 8 V CC_CORE --- A H 2 0 V S S --- AH22 V C C_COR E --- A H 2 4 V S S --- AH26 V C C_COR E --- A H 2 8 V S S --- AH30 F S B_Sense[1] page 7 7 - O G A H 3 2 V S S --- A H 3 4 V S S --- A H 3 6 V S S --- [...]

Chapter 11 Pin Descriptions 73 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information AL25 NC Pin page 78 - - - AL27 NC Pin page 78 - - - AL29 SADDI N[1]# page 79 P I - AL3 1 S DA T AOUTV ALI D# P O P AL33 SADDIN[8]# P I P AL35 SADDIN[4]# P I G AL3 7 SADDI N[1 0]# P I G AM2 V CC_C OR E --- A M 4 V S S --- A [...]

74 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information 1 1 .3 Detailed Pin Descriptions T he inf o rmation in this section pertains to T able 25 on page 66. A20M# Pin A20M# is an input from the sy stem used to simulate addr ess wr ap-around in the 20-bit 8086. AM D Pin AMD Soc [...]

Chapter 11 Pin Descriptions 75 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information CON N E C T Pin CONNECT is an in put fr om the syste m used f or po wer management and cloc k-forw ard initialization at r eset. C ORE FB a nd C ORE FB# Pi ns COREFB and COREFB# ar e outputs to the system that pro vide pr o[...]

76 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T he FID[3:0] signals ar e open-dr a in processor outputs that ar e pulled High on the motherboar d and sampled b y the chipset to determine the SIP (Serialization Initialization P ac ket) that is sent to the pr ocessor . T[...]

Chapter 11 Pin Descriptions 77 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information See “F requenc y Identification (F ID[3:0])” on page 33 for the DC c haracteristics f or FID[3:0]. FS B_Sense[1:0] Pins FSB_Sense[1:0] pins are either open circuit (lo gic lev el of 1) or ar e pulled to g r ound (logic [...]

78 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information K7C LKOU T and K7C LKOU T# Pins K7CLK OUT and K7CLK OUT# ar e each run f or two to thr ee inc hes and then terminated with a r esistor pair: 100 ohms to V CC_CORE and 100 ohms to VSS. The effecti v e termination r esistance[...]

Chapter 11 Pin Descriptions 79 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information S ADDIN[ 1:0 ]# an d SADDO U T[1:0]# Pins T he AMD Athlon XP pr ocesso r model 8 does not support SADDIN[1:0]# or SADDOUT[1:0]#. SADDIN[1]# is tied to VCC with pullup r esistors, if this bit is not supported by the Northbri[...]

80 Pin Descriptions Chapter 1 1 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information F or mor e information, see the “Requir ed Cir c uits” c hapter of the AMD Athlon™ Processor -Bas ed Motherboard Design Guide , or der# 24363. VRE FSY S Pin VREFSYS (W5) dri ves the thr e shold v oltage for the system[...]

Chapter 12 Ordering Information 81 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information 1 2 Ordering Information T his section pro vides the ordering inf ormation f or the AMD Athlon™ XP processor model 8. Standard AM D Athlon™ X P Proc essor Model 8 Products AMD standar d products ar e a vail a b le i[...]

82 Ordering Information Chapter 1 2 AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Appendix A - Thermal Diode Calculations 83 Preliminary Information Appendix A Thermal Diode Calculations T his section contains inf ormati on about the calcul ations f or the on-die thermal diode of the AMD A thlon™ XP processor model 8. F or electrica[...]

84 Appendix A - Thermal Diode Calculations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information Equation (1) show s the id eal diode calculation. Sour cing two curr ents and us ing Equation (1) deriv es the differ ence in the base-to-emitter voltage that leads to finding the diode temper ature as sho wn in [...]

Appendix A - Thermal Diode Calculations 85 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information T he form ulas in Equation (3) and Equation (4) can be used to calculate the temper ature offset f or temperatur e sensor s that do not emplo y series resistance cancellation. The r esult is added to the v alue [...]

86 Appendix A - Thermal Diode Calculations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]

25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Appendix B - Conventi ons and Abbreviations 87 Appendix B Con v entions and Abbreviations T his section contains informat ion a bout the conv entions and ab bre viations used in this document. Signals and Bits ■ Acti v e-Low Signals — Signal names co[...]

88 Appendix B - Conventions and Abbreviations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information ■ Inv alid and Don’ t-Car e — In timing diagr ams, signal ranges that ar e inv alid or don't-car e ar e filled with a screen pattern. Data T erminology T he f ollowing list defines data terminolog y[...]

Appendix B - Conventi ons and Abbreviations 89 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Abbreviations and Acr onyms T able 31 contains the definition s of ab br e viations used in this document. T able 3 1 . Abbreviations Abbreviation Mean ing AA m p e r e F F arad G Giga- Gbit Gigabit Gby te G[...]

90 Appendix B - Conventions and Abbreviations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information T able 32 contains the definiti ons of acr onyms used in this document. pp i c o - pA picoampere pF picofarad pH picohenry ps picosecond s Second VV o l t WW a t t T able 32. Acronyms Abbreviation Mean ing ACP[...]

Appendix B - Conventi ons and Abbreviations 91 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information IDE Integrated Device Electronics ISA Industry Standard Architecture IPC Instructions Per Cycle JE DEC Joint Electron Devi ce Engineering Council JT AG Joint T est Action Group LA N Large Area Network LR U L[...]

92 Appendix B - Conventions and Abbreviations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information SP D Serial Presence Detect SR AM S ynchronous Random Access Memory SR OM Serial Read Only Memory TLB T ranslation Lookaside Buffer TO M T o p o f Me m o r y T TL T ransistor T ransistor L ogic V AS Virtual Ad[...]

Appendix B - Conventi ons and Abbreviations 93 25 1 75H — March 2003 AM D Athlon™ XP Proce ssor Model 8 Data Sheet Preliminary Information Related Publications T hese documents pro vide help ful information a bout the AMD Athlon™ XP processor model 8, and can be f ound with other r elated documents at the AMD W eb site, http://www .amd.com . [...]

94 Appendix B - Conventions and Abbreviations AM D Athlon™ XP Processor Model 8 Data Sheet 25 1 75H — March 2003 Preliminary Information[...]