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Model 8/[F:8] Registers
35
23913A/0—November 2000
Embedded AMD-K6™ Processors BIOS Design Guide
Preliminary Information
Table 17. Processor-to-Bus Clock Ratios (Models 8/[F:8] and 9)
Table 18. Processor-to-Bus Clock Ratios (Model Standard-Power D)
State of BF[2:0]
Processor-Clock to Bus-Clock Ratio
100b
2.5x
101b
3.0x
110b
6.0x
1
Notes:
1. The 2.0x ratio that is supported on models 7 and 8/[7:0] is not supported on models 8/[F:8] or 9.
Instead, if BF[2:0] equals 110b, a ratio of 6.0x is selected.
111b
3.5x
000b
4.5x
001b
5.0x
010b
4.0x
011b
5.5x
State of BF[2:0]
Processor-Clock to Bus-Clock Ratio
100b
2.0x
1
Notes:
1. The 2.5x ratio that is supported on model 8/[F:8] and 9 is not supported on standard-power model
D. Instead, if BF[2:0] equals 100b, a ratio of 2.0x is selected.
101b
3.0x
110b
6.0x
111b
3.5x
000b
4.5x
001b
5.0x
010b
4.0x
011b
5.5x