User's Guide

LE910Cx Hardware User Guide
1VV0301298 Rev. 1.04 - 2017-05-25
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11. Application Guide
11.1. Debug of the LE910Cx Module in Production
To test and debug the mounting of the LE910Cx module, we strongly recommend to add several
test pads on the host PCB for the following purposes:
• Checking the connection between the LE910Cx itself and the application
• Testing the performance of the module by connecting it with an external computer
Depending on the customer application, these test pads include, but are not limited to the following
signals:
• TXD
• RXD
• ON/OFF
• HW_SHUTDOWN_N
• GND
• VBATT
• TX_AUX
• RX_AUX
• USB_VBUS
• USB_D+
• USB_D-
• GPIO_09
• WCI_RX
In addition, the following signals are also recommended (but not mandatory):
• PWRMON
• GPIO_01 (STAT_LED)
• GPIO_08 (SW_RDY)