Table 36. Ecx Format Returned By Function 8000_0006H; Table 37. Edx Format Returned By Function 8000_0007H - AMD -K6-2/450 - MHz Processor Application Note

23913A/0—November 2000
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

Size (Kbytes)
ECX
Notes:
1. See "Associativity for L2 Cache" on page 80 for more information
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
1
EDX
Notes:
1. A '1' indicates the feature is present, however the feature must still be enabled by software.
Appendix A
Preliminary Information
Associativity
Bits 31–16 Bits 15–12
Reserved
Bits 31–3
Embedded AMD-K6™ Processors BIOS Design Guide
L2 Cache
1
Lines per Tag
Bits 11–8
AMD PowerNow!™ Technology
Voltage ID
Control
Bit 2
Line Size (bytes)
Bits 7–0
Bus Divisor
Reserved
Control
Bit 1 Bit 0
79