17
JP19-22: CPU Clock Ratio
Use these 3 x 4 pin jumpers to manually set the CPU clock ratio.
Refer to the following table to set the CPU clock ratio for your
processor by shorting the pins indicated.
JP19-22 jumpers settings
Short pins
Example
Fraction
JP19
JP20
JP21
JP22
3.0/11.0
2-3
2-3
1-2
2-3
3.5/11.5
2-3
2-3
1-2
1-2
4.0/12.0
2-3
1-2
2-3
2-3
4.5/ 8.5
2-3
1-2
2-3
1-2
5.0/ 9.0
2-3
1-2
1-2
2-3
5.5/ 9.5
2-3
1-2
1-2
1-2
6.0/10.0
1-2
2-3
2-3
2-3
6.5/10.5
1-2
2-3
2-3
1-2
7.0
1-2
2-3
1-2
2-3
7.5
1-2
2-3
1-2
1-2
8.0
1-2
1-2
2-3
2-3
The following exam-
ple shows a CPU
clock ratio of
3.0/11.0.
JP19
JP20
JP21
JP22
1 2 3
Summary of Contents for P6VXM2
Page 74: ...68 Notes ...