LE940B6 HW User Guide
Rev. 2.02
Page 71 of 111
2020-01-10
8.
Hardware Interfaces
Table 23 summarizes all the hardware interfaces of the LE940B6 module.
Table 23: 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
Provided
to
Dekra
under
NDA
Distribution
is
Prohibited
except
for
Dekra
employees
with
a Need
to
know
