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3
Hardware and jumper settings
3.1
Power supplies
When the mini module is plugged into the motherboard, power is supplied directly by the motherboard. In this
setup, the external power supply input available on the mini module should NOT be used.
When the
mini module is used as a stand-alone board, external power supplies must be
used (5 V, 3.3 V, 1.25 V).
The following jumpers are used to configure the power supply:
Table 1.
Supply related jumpers
Jumper Description
Default
J2
Jumper to enable the use of Supply 3.3V_SR
Closed
J3
Jumper to enable the use of Supply 5.0V_SR
Closed
J4
Jumper to enable the use of Supply 1.25V_SR
Closed
J5
VDD_HV_ADR voltage configuration:
•
1-2 5.0V_LR
•
2-3 3.3V_SR
•
2-4 5.0V_SR
1-2 (5.0V_LR)
J6
VDD_HV_ADV voltage configuration:
•
1-2 5.0V_LR
•
2-3 3.3V_SR
•
2-4 5.0V_SR
1-2 (5.0V_LR)
J9
VDD_HV_IO_MAIN voltage configuration:
•
1-2 5.0V_SR
•
2-3 3.3V_SR
1-2 (5.0V_SR)
J11
VDD_LV voltage configuration:
•
1-2 1.25V_SR
•
2-3 1.25V from Ballast circuit
1-2 (1.25V_SR)
J12
Supply for BALLAST circuit configuration:
•
1-2 VDD_HV_IO_MAIN
•
2-3 5.0V_SR
1-2 (VDD_HV_IO_MAIN)
JP1
VDD_HV_FLA voltage configuration, connect or disconnect VDD_HV_FLA from
VDD_HV_IO_MAIN
Closed
(Connect VDD_HV_FLA to
VDD_HV_IO_MAIN)
UM2661
Hardware and jumper settings
UM2661
-
Rev 1
page 7/23