Specifications

26 F4x164 Fixed Errata Register
41322 Rev. 3.84 August 2011
Revision Guide for AMD Family 10h Processors
F4x164 Fixed Errata Register
Communicating the status of an erratum within a stepping of a processor family is necessary in
certain circumstances. F4x164 is used to communicate the status of such an erratum fix so that BIOS
or system software can determine the necessity of applying the workaround. Under these
circumstances, the erratum workaround references the specified bit to enable software to test for the
presence of the erratum. The erratum may be specific to some steppings of the processor, and the
specified bit may or may not be set on other unaffected revisions within the same family. Therefore,
software should use the CPUID Fn00000_0001_EAX extended model, model, and stepping as the
first criteria to identify the applicability of an erratum. Once defined, the definition of the status bit
will persist within the family of processors.
Bits Description
31:0 0000_0000h. Reserved.