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Table 21: Pin Definition of SLEEP_IND
Pin Name
Pin No.
SLEEP_IND*
3
Table 22: Working State of SLEEP_IND
Pin Name
Logic Level
High
SLEEP_IND*
Low
The following figure shows a reference circuit of SLEEP_IND interface.
NOTE
"*" means under development.
3.17. USB_BOOT Interface
UC200T-EM provides a USB_BOOT pin. Developers can pull up USB_BOOT to VDD_EXT before
powering on the module, thus the module will enter into emergency download mode when powered on. In
this mode, the module supports firmware upgrade over USB interface.
UC200T-EM_Hardware_Design
I/O
Description
DO
Indicate the module sleep status
Module
Network
Indicator
Figure 19: Reference Circuits of SLEEP_IND
UMTS/HSPA(+) Module Series
UC200T-EM Hardware Design
Comment
1.8V power domain.
If unused, keep it open.
Indicate Status
Module sleep
Others
VBAT
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