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
|