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XVME-653/658 Manual
Jumper Settings
The following tables list the XVME-653/658 jumpers, their default positions (either
checked or labeled by module number), and their functions. Jumper locations are shown
in Figure 2-1 and Figure 2-2.
Jumper
J1
J13
J16
J17
J19
J20
CPU Configuration
Module/Speed
XVME-653/233 MHz
XVME-658/333 MHz
CPU Core Voltage
CPU Voltage Plane Configuration
2-2
Table 2-1 General Jumper Settings
Position
In
Disables system resource function
Out √ √ √ √
Enables system resource function
A √ √ √ √
Reserve 1
B
A √ √ √ √
Boot from Flash
Boot from ROM
B
A
Clear CMOS memory
B √ √ √ √
Normal CMOS memory
A √ √ √ √
Reserve 2
B
A
Reserve 3
B √ √ √ √
Table 2-2 CPU Configuration Jumper Settings
J2
J3
J4
B
A
A
A
A
B
Table 2-3 CPU Core Voltage Jumper Settings
CPU Core Voltage
2.2 V (XVME-658/333 MHz)
2.8 V (XVME-653/233 MHz)
Table 2-4 CPU Voltage Plane Configuration Jumper Settings
CPU Configuration
Single Voltage Plane
Split Voltage Planes (XVME-653/658) √ √ √ √
Function
J5
J6
J7
J8
A
A
B
B
A
A
B
B
J2
J3
J4
J5
A
A
B
B
A
A
J7
A
B
J9
J10
J11
J12
B
A
A
A
B
B
A
B
J6
A
A
A
A
J8
J9
A
A
B
B
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