User Guide

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GM500-U1G_A
Hardware Development Guide
2. Application Interface
2.1. General Description
GM500-U1G_A is equipped with 80 LCC pads plus 16 ground pads and 22 LGA pads that connect to customer’s cellular application
platform. Sub-interface included in these pads is described in detail in the following chapters:
 Pin assignment
 Pin description
 Power supply
 Turn on/off scenarios
 USIM interface
 USB interface
 UART interface
 Network status indication
 ADC interface
 WAKEUP_IN signal
 WAKEUP_OUT signal
 GPIO interface
2.2. Pin Assignment
The following figure shows the pin assignment of the GM500-U1G_A module.