Smart LTE Module Series
Smart EVB G2 User Guide
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Emergency Download Interface
4.13.
Smart EVB G2 provides one emergency download switch USB_BOOT to force the module enter into
download mode. Pull up USB_BOOT pin to 1.8V before powering on the module when the function is
used. The following figures show a reference circuit design for the emergency download interface and its
switch.
LDO5_1P8
S1
Module
USB_BOOT
R1
10K
Figure 42: Reference Design for Emergency Download Interface
Figure 43: Emergency Download Switch