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19
GE2015
Dev Board User Guide
Figure 3–5 GE2015_SB_B and Identifying
No.
Annotation (bit number)
Description
1
USB interface (X1)
Lead out e USB_DM, USB_DP signal from module interface,external +5V power input from USB interface, can supply
3.8V power through DCDC (D1)chip.
2
Jumper (TP4)
When TP4 connection, lead in 5VUSB from GE2015 to GE2015_SB, or use 5VUSB on baseboard as 5V input.
3
Jumper (X6
、
X7)
USB interface select:
When select the USB interface of GE2015 for power supply, you need to connect Jumper TP4, and locate X6&X7 to the
left as shown in the left figure below(connect the X3 USB interface of GE2015 to PC to enumerate the USB port)
Mode 1
Mode 2
2. when only use the SB interface board alone, you need to connect Jumper TP4, and locate X6&X7 to the right as
shown in the right figure above to select the USB interface of SB board for power supply. (connect the X1 USB interface
of SB interface board to PC to enumerate the USB port)
4
Jumper (TP6)
TP6 can choose the power supply pattern when use GE2015_SB only: VPH_PWR selects DC power supply (jumper is on
the right) or USB interface external power supply ((jumper is on the left).
