JUMPER SETTING AND CONNECTORS
EM586 / 13
CPU Speed Reference Table
CPU Speed (MHz)
75
90
100
120
133
150
166
200
233
Clock setting
50
60
66.6
60
66.6
60
66.6
66.6
66.6
Frequency ratio
1.5
1.5
1.5
2
2
2.5
2.5
3
3.5
l
JP18 : Select CPU External Bus Clock
CPU External Bus
Clock
JP18
50 MHz
1-2,3-4,5-6
60 MHz
1-2
66.6 MHz (Default )
OFF
l
JP20 : Select Software Watch-Dog or Hardware Watch-Dog
Panel Voltage
JP20
Hardware ( Default )
ON
Software
OFF
Default :
2
1
JP18
6
5
Default :
JP20
1
2
JP18
2
1
6
5
2
JP18
50MHz
60MHz
66.6MHz
1
6
5
JP18
3.0 X
Software
Hardware
1
2
JP20
1
2
JP20
JP20
