Cpu External (Bus) Frequency Selection (Jp3); Table 1-3: Cpu Clock Ratio Selection (Jp12); Table 1-4: Cpu External (Bus) Frequency Selection (Jp3) - Advantech PCA-6155V Manual

Table 1-3: CPU clock ratio selection (JP12)

1
3
5
1.5x
1
3
5
3x

1.8.2 CPU external (bus) frequency selection (JP3)

These jumpers tell the clock generator what frequency to send to the
CPU. These allow the selection of the CPU's external frequency (or
bus clock). The CPU's external frequency multiplied by the CPU clock
ratio equals the CPU's internal frequency (i.e. the advertised CPU
speed).

Table 1-4: CPU external (bus) frequency selection (JP3)

1
3
55 MHz
PCA-6155V User's Manual
12
2
1
4
3
6 5
2
1
4
3
6
5
2 1
4 3
60 MHz
2
4
6
2x
2
4
6
3.5x
2 1
4 3
66 MHz
1
2
3
4
5
6
2.5x
1 2
3 4
5 6
4x
2 1
4 3
75 MHz
2
4