參數(shù)資料
型號(hào)： 21329
英文描述： AMD-K6 Processor Power Supply Design Application Note AMD-K6 Processor Bios Design Application Note
中文描述： 的AMD - K6處理器電源設(shè)計(jì)應(yīng)用指南的AMD - K6處理器的BIOS設(shè)計(jì)中的應(yīng)用說(shuō)明
文件頁(yè)數(shù)： 15/52頁(yè)
文件大?。?/td> 687K
代理商： 21329
BIOS Consideration Checklist
5
21329L/0—December 1999
AMD-K6
Processor BIOS Design
I
Utilize the information provided in the Processor State
Observability Register (PSOR) to display the correct
processor bus frequency.
Cache Testing
I
The processor does not contain MSRs to allow for testing of
the L1 cache.
SMM Issues
I
The System Management Mode (SMM) functionality of the
processor is the same as the Pentium processor.
Implement the processor SMM state-save area in a similar
manner as Pentium processors except for the IDT Base and
possibly Pentium processor-reserved areas. See “System
Management Mode (SMM)” on page 13 for more
information.
I
AMD-K6
-III
Processor Model 9
The term
processor
in this section is defined as the AMD-K6-III
processor Model 9.
CPUID
I
Use the CPUID instruction to properly identify the
processor. For information on the CPUID instruction, refer
to the
AMD Processor Recognition Application Note
, order#
20734.
Determine the processor model, stepping and features using
functions 0000_0001h and 8000_0001h of the CPUID
instruction.
Display BIOS boot string:
AMD-K6(tm)-III/XXX
for all
steppings of
the Model 9. For more information, see “CPUID
Identification Algorithms” on page 9.
I
I
CPU Speed Detection
I
Use speed detection algorithms that do not rely on
repetitive instruction sequences.
Use the Time Stamp Counter (TSC) to ‘clock’ a timed
operation and compare the result to the Real Time Clock
(RTC) to determine the operating frequency. See the
CPU
Speed Determination Program
available on the AMD website
at http://www.amd.com/K6/k6docs/.
Display the recommended BIOS boot string as shown in
Table 4, “Summary of AMD-K6
Processor Models and BIOS
Boot String
,” on page 10.
I
I
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