STMicroelectronics SPC570SADPT64S rev. B, User Manual

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5 Hardware and jumper setting
5.1 Power supplies
When the "mini module" is plugged onto 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 SPC570SADPT64S rev. B "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. Power configuration jumpers
Jumper Description Default Position
J1
VDD_HV_ADC_TSENS voltage configuration:
•
1-2: 5 V_LR (linear)
• 2-3: 5 V_SW (switching)
1-2 (5V_LR) Figure 10 - C3
J3
VREFH_ADC voltage configuration:
•
1-2: 5 V_LR (linear)
• 2-3: 5 V_SW (switching)
1-2 (5V_LR) Figure 10 - C3
J5
VDD_HV_PMU_OSC voltage configuration:
•
1-2: 5 V_SR
• 2-3: 3.3 V_SR (switching)
1-2 (5V_SR) Figure 10 - C2
J6
VDD_HV_IO_MAIN voltage configuration:
•
1-2: 5 V_SR
• 2-3: 3.3 V_SR (switching)
1-2 (5V_SR) Figure 10 - C3
JP1
External core voltage supply configuration jumper:
•
Open: core voltage supply not connected to external 1.25 V
• Closed: core voltage supply connected to external 1.25 V
Open Figure 11 - C4
JP2
VDD_LV1 configuration for external 1.25 V use:
•
Open: VDD_LV1 not connected to JP1
• Closed: VDD_LV1 connected to JP1
Close Figure 11 - C3
JP4
VDD_LV2 configuration for external 1.25 V use:
•
Open: VDD_LV2 not connected to JP1
• Closed: VDD_LV2 connected to JP1
Close Figure 11 - C2
JP5
VDD_LV3 configuration for external 1.25 V use:
•
Open: VDD_LV3 not connected to JP1
• Closed: VDD_LV3 connected to JP1
Close Figure 11 - C2
UM2841
Hardware and jumper setting
UM2841 - Rev 1
page 7/28