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Table 23: Pin Definition of USB_BOOT Interface
Pin Name
Pin No.
USB_BOOT
115
The following figure shows a reference circuit of USB_BOOT interface.
UC200T-EM_Hardware_Design
I/O
Description
Force the module to enter into
DI
emergency download mode
Module
USB_BOOT
TVS
Figure 20: Reference Circuit of USB_BOOT Interface
UMTS/HSPA(+) Module Series
UC200T-EM Hardware Design
Comment
1.8V power domain. Active high.
It is recommended to reserve test
point.
VDD_EXT
Test point
4.7K
Close to test point
42 / 68
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