Gosuncn Technology Group Co. Ltd. GM500U1A 사용자 설명서
All Rights reserved, No Spreading abroad without
GOSUNCN
Permission
45
GM500_U1A
Hardware Development Guide
Table 2-20 Pin Definition of WAKEUP_OUT
Pin Name
Pin NO.
I/O
Description
Comment
WAKEUP_OUT
71
DO
Output wakeup signal
1.8V power domain
The pin output a high-level voltage by default. When a
wake-up source (such as new SMS receive, call, network
data ) arrives, the pin output a low-level-voltage pulse
lasting for 1s
For instance, When a wake-up source arrives, the module will output the level shown as the figure below through pin 71.
Module state:
Operating state
Sleep state
low
High
WAKEUP_OUT:
1s
Figure 2–31 The output signal of WAKEUP_OUT
Figure 2–32 Connections of the WAKEUP_OUT pin