Fujitsu F2MC-8FX Series Operation Manual page 13

■ Setting of the sub clock selector jumper plug (S1)
Table 7 lists jumper plug positions and sub clock selection. Figure 10 shows examples of sub clock
selection.
Sub clock
Used Supply source M1 correspondence pin
Clock area
enable
User system*
disable
* : Oscillation is not guaranteed when the crystal oscillator is mounted on the user system.
■ Setting of the LVD2 detection voltage selector jumper plug (S2)
Figure 11 shows the setting of the LVD2 detection voltage selector jumper plug (S2). Table 8 lists
jumper plug positions for detection voltages.
These settings cannot be used during debugging. Set the jumper to LVD0 to use the debugger.
Table 7 Setting of sub clock selector
X0A : R3 pin
X1A : V1 pin
⎯
C B A
Example 1
Figure 10 The example of sub clock selection
Figure 11 The LVD2 detection voltage selector jumper plug (S2)
Table 8 Setting of the LVD2 detection voltage selector jumper plug
Jumper plug position
LVD0
LVD1
LVD2
LVD3
LVD4
Settings of the sub clock
selector jumper plug (S1)
X0A
Jumper of 1: B - 1: C Jumper of 2: B - 2: C
Jumper of 1: A - 1: B Jumper of 2: A - 2: B
1
2
C
Example 2
Example of
settings
X1A
Example 1
Example 2
1
2
B A
LVD2 setting value
+ 4.17V
+ 3.74V
+ 3.3V
+ 2.9V
+ 2.6V
9