參數(shù)資料
型號: 23913A
英文描述: Embedded AMD-K6 Processors BIOS Design Guide Application Note? 1.33MB (PDF)
中文描述: 嵌入式的AMD - K6處理器的BIOS設(shè)計指南應(yīng)用筆記? 1.33MB(PDF格式)
文件頁數(shù): 91/98頁
文件大?。?/td> 1365K
代理商: 23913A
Appendix A
79
23913A/0—November 2000
Embedded AMD-K6 Processors BIOS Design Guide
Preliminary Information
Function 8000_0006h — L2 Cache Information
This function is only available on AMD-K6 processors models 9 and D.
Input:
EAX = 8000_0006h
Output:
EAX = Reserved
EBX = Reserved
ECX = L2 Unified Cache Information
EDX = Reserved
Function 8000_0006h returns information about the processor’s L2 cache. Table 36
provides the format for the information returned by the 8000_0006h function.
Table 36.
ECX Format Returned by Function 8000_0006h
Function 8000_0007h — AMD PowerNow! Technology Information
The AMD PowerNow! technology function for enhanced power management is
available on low-power versions of the AMD-K6-2E+ and AMD-K6-IIIE+ processors,
Model D.
Input:
EAX = 8000_0007h
Output:
EAX = Reserved
EBX = Reserved
ECX = Reserved
EDX = EPM Flags
Function 8000_0007h returns information about the processor’s AMD PowerNow!
technology support. Table 37 provides the format for the information returned by the
8000_0007h function.
Table 37.
EDX Format Returned by Function 8000_0007h
L2 Cache
Size (Kbytes)
Bits 31–16
Associativity
1
Bits 15–12
Notes:
1.
See “Associativity for L2 Cache” on page 80 for more information
Lines per Tag
Bits 11–8
Line Size (bytes)
Bits 7–0
ECX
AMD PowerNow! Technology
Reserved
Voltage ID
Control
Bit 2
Bus Divisor
Control
Bit 1
Reserved
EDX
1
Notes:
1.
A ‘1’ indicates the feature is present, however the feature must still be enabled by software.
Bits 31–3
Bit 0
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