User's Manual

LE940B6 Hardware User Guide
1VV0301331 Rev. 1.8 - 2017-03-15
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8. Hardware Interfaces
Table 24 summarizes all the hardware interfaces of the LE940B6 module.
Table 24: LE940B6 Hardware Interfaces
LE940B6 (XMM7272 CAT6)
Ethernet RMII/RGMII
USB USB2.0
SPI Master only, up to 26 MHz (104 MHz @ Kernel CLK/4)
I2C For sensors, audio control
UART x1 UART for AT (up to 4.8 Mbps)
x1 UART for diagnosis (up to 4.8 Mbps)
x1 UART for GNSS or external controller (up to 4.8 Mbps)
Audio I/F I2S/PCM, Analog audio
GPIO 15 dedicated GPIO
USIM X2, dual voltage each (1.8/2.9V);
SIM chip integration not possible
ADC Up to x3
Antenna ports 2 for Cellular, 1 for GNSS