Cpu To Bus Frequency Ratio (Jp12); Cpu External (Bus) Frequency Selection (Jp9, Jp10, Jp13); Cpu Speed - DTK PAM-0057I User Manual

Chapter 2
2.5

CPU TO BUS FREQUENCY RATIO (JP12)

JP12 set the frequency ration between the Internal frequency of the CPU and the
External frequency (called the Bus clock) within the CPU. These must be set
together with the below jumpers CPU External (Bus) Frequency Selection.
2.6 CPU EXTERNAL (BUS) FREQUENCY
SELECTION (JP9, JP10, JP13)
JP9, JP10, JP13 tell the clock generator what frequency to send to the CPU. The Bus
clock times the Bus Ratio equals the CPU's Internal frequency.
2.7

CPU SPEED

CPU Type Freq.
Pentium 90MHz
Pentium 100MHz
Pentium 120MHz
Pentium 133MHz
Pentium 150MHz
Pentium 166MHz
Pentium 200MHz
Pentium w/MMX 166MHz
Pentium w/MMX 200MHz
Pentium w/MMX 233MHz
AMD-K5-PR166 166MHz
AMD-K5-PR133 133MHz
AMD-K5-PR120 120MHz
AMD-K6/300 300MHz
AMD-K6/266 266MHz
AMD-K6-2/266 266MHz
AMD-K6/233 233MHz
AMD-K6/200 200MHz
14
Ratio Bus Ratio Setting
Freq. JP9 JP10
1.5x 60MHz 1-2 1-2
1.5x 66MHz 1-2 1-2
2.0x 60MHz 2-3 1-2
2.0x 66MHz 2-3 1-2
2.5x 60MHz 2-3 2-3
2.5x 66MHz 2-3 2-3
3.0x 66MHz 1-2 2-3
2.5x 66MHz 2-3 2-3
3.0x 66MHz 1-2 2-3
3.5x 66MHz 1-2 1-2
2.5x 66MHz 2-3 2-3
2.0x 66MHz 2-3 1-2
2.0x 60MHz 2-3 1-2
4.5x 66MHz 2-3 2-3
4.0x 66MHz 2-3 1-2
4.0x 66MHz 2-3 1-2
3.5x 66MHz 1-2 1-2
3.0x 66MHz 1-2 2-3
To be continued...
Table 1a
Bus Freq. Setting
(JP12)
JP13 1-2 3-4
1-2 close open
1-2 open open
1-2 close open
1-2 open open
1-2 close open
1-2 open open
1-2 open open
1-2 open open
1-2 open open
1-2 open open
1-2 open open
1-2 open open
1-2 close open
2-3 open open
1-2 open open
2-3 open open
1-2 open open
1-2 open open