Advertisement

Quick Links

Preliminary Information
AMD Athlon™ Processor Model 6
Revision Guide
Publication # 24332
Rev: E
Issue Date: December 2002

Advertisement

Table of Contents
loading

Summary of Contents for AMD Athlon 6

  • Page 1 Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide Publication # 24332 Rev: E Issue Date: December 2002...
  • Page 2: Preliminary Information

    AMD reserves the right to discontinue or make changes to its products at any time without notice. Trademarks AMD, the AMD Arrow logo, AMD Athlon, and combinations thereof, are trademarks of Advanced Micro Devices, Inc. Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies.
  • Page 3: Revision History

    October 2001 Added Table 2: Cross-reference of Erratum to Processor Segments to include all processor ■ segments Updated reference documents listed in section 3.1 ■ May 2001 Initial public release. Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide Description...
  • Page 4 AMD Athlon™ Processor Model 6 Revision Guide AMD Athlon™ Processor Model 6 The purpose of the AMD Athlon™ Processor Model 6 Revision Guide is to communicate updated product information on the AMD Athlon processor model 6 to designers of computer systems and software developers.
  • Page 5: Table Of Contents

    24332E—December 2002 Product Errata This section documents AMD Athlon™ Processor Model 6 product errata. The errata are divided into categories to assist referencing particular errata. A unique tracking number for each erratum has been assigned within this document for user convenience in tracking the errata within specific revision levels.
  • Page 6 Errata Workstation/Server Number Notes: 1. The workstation/server segment currently includes the AMD Athlon™ MP processor. 2. The desktop segment currently includes the AMD Athlon XP processor. 3. The mobile segment currently includes the AMD Athlon 4 processor. Preliminary Information Desktop 24332E—December 2002...
  • Page 7: Invlpg Instruction Does Not Flush Entire Four-Megabyte Page Properly With Certain Linear Addresses

    Suggested Workaround. When using the INVLPG instruction in association with a page that is mapped via a 4-Mbyte page translation, always clear bit 21. Resolution Status. Fix planned for a future revision. Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide...
  • Page 8: Deadlock May Occur In A Two-Processor System In The Presence Of Probe To Memory-Mapped I/O

    AMD Athlon™ Processor Model 6 Revision Guide Deadlock May Occur in a Two-Processor System in the Presence of Probe to Memory- Mapped I/O Products Affected. A0, A2, A5 Normal Specified Operation. Processor should not hang. Non-conformance. In a multiprocessor system, if one processor (A) is continuously writing to a cacheable...
  • Page 9: Processor May Issue Non-Connect Bus Cycle After Fid Special Cycle

    Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide 24332E—December 2002 Processor May Issue Non-Connect Bus Cycle After FID Special Cycle Products Affected. A0, A2 Normal Specified Operation. The first processor cycle after a FID Change special cycle should be a Connect special cycle.
  • Page 10: Processor Does Not Support Reliable Microcode Patch Mechanism

    Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide 24332E—December 2002 Processor Does Not Support Reliable Microcode Patch Mechanism Products Affected. A5 Normal Specified Operation. The processor should function properly after a microcode patch is loaded. Non-conformance. The processor has the patch RAM BIST function disabled. Since BIST is not run on the patch RAM, reliable operation of the patch RAM cannot be guaranteed.
  • Page 11: Processor Performance Counters Do Not Count Some X86 Instructions X Xx

    LMSW that changes any bit Potential Effect on System. Performance counter may under count the actual number of x86 instructions. Suggested Workaround. Versions of the AMD Athlon™ processor not affected by this erratum may be used to gather instruction counts.
  • Page 12: Speculative Smc Store Followed By An Actual Smc Store May Cause One-Time Stale Execution

    AMD Athlon™ Processor Model 6 Revision Guide A Speculative SMC Store Followed by an Actual SMC Store May Cause One-Time Stale Execution Products Affected. A0, A2, A5 Normal Specified Operation. Self-modifying code sequences should be correctly detected and handled in a manner consistent with canonical results;...
  • Page 13 Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide 24332E—December 2002 Real Mode RDPMC with Illegal ECX May Cause Unpredictable Operation Products Affected. A0, A2, A5 Normal Specified Operation. Illegal values of ECX (that is, ECX>3) for the RDPMC (Read Performance Monitor Counter) instruction cause the processor to take a general protection exception.
  • Page 14 Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide 24332E—December 2002 Using Task Gates With Breakpoints Enabled May Cause Unexpected Faults Products Affected. A0, A2, A5 Normal Specified Operation. Task gates should correctly use the TSS selector out of the task gate for CALL and JMP instructions.
  • Page 15 Preliminary Information AMD Athlon™ Processor Model 6 Revision Guide 24332E—December 2002 Single Step Across I/O SMI Skips One Debug Trap Products Affected. A0, A2, A5 Normal Specified Operation. When single stepping (with EFLAGS.TF) across an IN or OUT instruction that detects an SMI, the processor correctly defers taking the debug trap and instead enters SMM.
  • Page 16 AMD Athlon™ Processor Model 6 Revision Guide Revision Determination Table 3 shows the AMD Athlon™ processor model 6 identification numbers returned by the CPUID instruction for each revision of the processor. Table 3. CPUID Values for the Revisions of the AMD Athlon™ Processor Model 6...
  • Page 17 AMD Athlon™ MP Processor OPGA Data Sheet for Multiprocessor Platforms: Processor Model 6, order #25480 For the latest updates, refer to www.amd.com and download the appropriate files. For documents under NDA, please contact your local sales representative for updates. Preliminary Information...

Table of Contents