Indication Signal - Quectel EG915U Series Hardware Design

Table 18: Pin Definition of PSM Interface
Pin Name
PSM_IND
PSM_EINT
A reference circuit is shown in the following figure.
Figure 25: Reference Circuit of Wake up Module from PSM

4.10. Indication Signal

Table 19: Pin Definition of Indication Signal
Pin Name
STATUS
AP_READY
NET_STATUS
EG915U_Series_Hardware_Design
Pin No. I/O
1 DO
96 DI
Module
VRTC
PSM_EXT_INT
Pin No. I/O Description
Indicate the module's operation
20 DO
status
19 DI Application processor ready
Indicate the module's network
21 DO
activity status
Description
Indicate the module's power
saving mode
External interrupt pin; Wake up
the module from PSM.
S1
2.2K
Close to S1
TVS
LTE Standard Module Series
Comment
VRTC power
domain
VRTC power
domain
TVS
Comment
1.8 V power domain.
If unused, keep it open.
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