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2.1-2 CPU Core Speed Derivation Procedure
1. The jumper JP1 is used to set the Core/Bus (Fraction) ratio of the CPU.
The actual core speed of the CPU is the Host Clock Frequency multiplied
by the Core/Bus ratio. For example:
If
then
200MHz
233MHz
266MHz
300MHz
333MHz
CPU Clock
Core/Bus ratio
CPU core speed =
=
66MHz
=
3.5
Host Clock x Core/Bus ratio
=
66MHz x 3.5
=
233MHz
1
1
1
1
1
2-16
3
3.5
4
4.5
5
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