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Hardware Setup SY-5STM
33
2-2 CPU FREQUENCY SETTING (JP10~16)
Configure the JP10~16 jumpers to the settings that match your CPU
speed. Refer to the following tables to set the Frequency Multiplier
and Host Bus Frequency of your CPU:
Frequency Multiplier Host Bus Frequency
Multiplier JP14 JP15 JP16
Host Bus
Frequency
JP10 JP11 JP12 JP13
1.5x open open open 50MHz 2-3 2-3 2-3 1-2
2.0x* open open short 55MHz 1-2 2-3 2-3 1-2
2.5x short open short 60MHz 2-3 2-3 1-2 1-2
3.0x short open open 66MHz* 2-3 1-2 2-3 1-2
3.5x open open open 68MHz 1-2 1-2 1-2 1-2
4.0x open short short 75MHz 1-2 2-3 1-2 1-2
4.5x short short short 83MHz 1-2 1-2 2-3 2-3
Example: If the working frequency of your CPU is 133MHz, then
select Multiplier=2.0x and Host Bus Frequency=66Mhz accordingly.
Also, as newer and higher frequency CPUs may not be listed in this
section, please refer to the tables CPU Frequency Settings for
Various Processors on pages 12~15 for complementary
information.