Primary Power Source and Grounding

The Intel® Joule™ module requires a primary power source (+VSYS) routed through 12 pins, 6 on each board-to-board connector. Connect all 12 +VSYS lines in common on the Intel® Joule™ expansion board to balance the input current path to the module.

Connect all ground pins common to board ground planes and the module mechanical mounting solution.

Refer to Power Delivery, Signaling, and Reset for module-specific information.

Module power and ground pins

 

Signal

Module Connector/Pin

Direction

Usage

VDCIN_SENSE

J6 pin 37

Output

Connected to +VDC_IN from DC jack for PMIC detection when DC jack is plugged in.

+VSYS

J6 pin (2,5,7,12,15, and 17)

J7 pin (1, 3, 20, 22, 32, and 34)

Output

Module power input

VBUS_SENSE

J6 pin 99

Output

Connected to +VBUS from USB for PMIC detection when USB power source is plugged in

+V5P0V_VCONN

J6 pin 41

Output

Provide module a +5 VDC USB CC signal

+VRTC

J6 pin 11

Output

RTC backup voltage supplies voltage to RTC logic when the system is not powered.

Ground

J6 pins 4, 10, 19, 42, 48, 54, 60, 66, 72, 73, 82, 86, 96, 98, 100

J7 pins 2, 5, 8, 10, 16, 17, 23, 24, 29, 30, 35, 36, 41, 42, 54, 60, 61, 67, 74, 80, 84, 85, 91, 90, 93, 96, 99

 

 

Common ground

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