User Guide

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GM500-U1G_A
Hardware Development Guide
Figure 2–5 Reference circuit of POWER_ON
The table below is the information of power-on/off pin
Table 2-5 Definition of POWER_ON
Pin Name Pin NO. I/O Description Comment
POWER_ON 1 DI Turn on/off the module low active. Pull-up to 0.8V internally
The power on scenarios is illustrated as the following figure, the module will power on and working when the POWER_ON pin
keep in low level for T1, in this process , please ensure VBAT steady.