User Guide

GM500-U1G_A

Hardware Development Guide

Figure 2–31 WAKEUP_IN reference design

NOTE:

There is Anti-shake design with WAKEUP_IN pin internal, when pull up or down this pin by external

processor, the level must last more than 500ms.WAKEUP_IN Usage scenario you can refer to the document

namedGOSUNCNGM500-U1G_AModule Power Management Design Guide.pdf

2.15. WAKEUP_OUT Signal

The module provides the WAKEUP_OUT pin which is used to wake up the external devices.

Table 2-22Pin Definition of WAKEUP_OUT

Pin Name Pin NO. I/O Description Comment

WAKEUP_OUT 71 DO Output wakeup signal 1.8V power domain

Thepin 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 modulewill output the level shown as the figure below through pin 71.