Hardware Setup

SY-5STM

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

Multiplier

JP14

JP15

JP16

 

 

 

 

1.5x

open

open

open

2.0x*

open

open

short

2.5x

short

open

short

 

 

 

 

3.0x

short

open

open

 

 

 

 

3.5x

open

open

open

4.0x

open

short

short

4.5x

short

short

short

 

 

 

 

Host Bus Frequency

Host Bus

JP10

JP11

JP12

JP13

Frequency

 

 

 

 

50MHz

2-3

2-3

2-3

1-2

55MHz

1-2

2-3

2-3

1-2

 

 

 

 

 

60MHz

2-3

2-3

1-2

1-2

 

 

 

 

 

66MHz*

2-3

1-2

2-3

1-2

 

 

 

 

 

68MHz

1-2

1-2

1-2

1-2

75MHz

1-2

2-3

1-2

1-2

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.

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Image 37
SOYO SY-5S manual CPU Frequency Setting JP10~16, Host Bus Frequency
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