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MS-5117 version 1.0
CPU Speed Setting (SW1)
Adjust SW1 (Dip Switch) to set CPU Speed.
1.Clock Selection: JK1
Set jumper JK1 according to the CPu clock. See Figure 1 for the
location of the jumper.
|
CPU Speed
|
SW1 Settings
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|
1
|
2
|
3
|
4
|
5
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6
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7
|
8
|
9
|
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75MHz
|
SHORT
|
SHORT
|
OPEN
|
OPEN
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SHORT
|
SHORT
|
SHORT
|
SHORT
|
OPEN
|
|
80MHz
|
SHORT
|
SHORT
|
OPEN
|
SHORT
|
SHORT
|
OPEN
|
OPEN
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SHORT
|
SHORT
|
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90/120MHz
|
OPEN |
SHORT |
SHORT |
OPEN |
SHORT |
SHORT |
OPEN |
SHORT |
SHORT
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100/133MHz
|
OPEN
|
SHORT
|
SHORT
|
SHORT
|
SHORT
|
OPEN
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SHORT
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SHORT
|
OPEN
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BACK TO TOP
3. CPU Bus/Core Frequency Ratio Selection: JC1, JC2
Jumper JC1 and JC2 set the CPU bus/core frequency ratio.
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Bus/Core Freq. Ratio
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CPU CLK
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JC1
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JC2
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3
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2
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1
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3
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2
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1
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2 / 3
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75MHz
90MHz
100MHz
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OPEN
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SHORT
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SHORT
|
OPEN
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SHORT
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SHORT
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1 / 2
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120MHz
133MHz
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SHORT
|
SHORT
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OPEN
|
OPEN
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SHORT
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SHORT
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2 / 5
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(Reserved)
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SHORT
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SHORT
|
OPEN
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SHORT
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SHORT
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OPEN
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1 / 3
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(Reserved)
|
OPEN
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SHORT
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SHORT
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SHORT
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SHORT
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OPEN
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4. CPU Voltage Selector: JV2
Jumper JV2 lets you set 3.3V, 3.5V, or reserved voltage for the
CPU voltage.
|
CPU
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Voltage
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JV2
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1
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2
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3
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4
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STD/VR
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3.3V (Default)
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SHORT
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SHORT
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SHORT
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SHORT
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VRE/MD
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3.5V
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SHORT
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SHORT
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OPEN
|
OPEN
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