User's Guide

LE910Cx HW User Guide
Doc#: 1VV0301298
Rev. 13.0 Page 100 of 124 2019-07-15
11. Application Guide
Debug of the LE910Cx Module in Production
To test and debug the mounting of the LE910Cx module, we strongly recommend adding
several test pads on the application board design 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)