NE310L2 Hardware Design Guide
1VV0301711 Rev. 2
Page 30 of 64
2021-06-22
Communication ports
SPI
The NE310L2 Module is provided by a standard 3-wire SPI master or slave interface with
chip select control.
The following table is listing the available signals:
PAD
Signal
I/O
Function
Type
NOTE
AA5
SPI_MOSI
I/O
SPI MOSI
CMOS 1.8V
Y8
SPI_MISO
I/O
SPI MISO
CMOS 1.8V
AA7
SPI_CLK
I/O
SPI Clock
CMOS 1.8V
Y6
SPI_CS
I/O
SPI Chip Select
CMOS 1.8V
Table 14: Available signals
Note: The SPI interface is supported through the Telit AppZone APIs.
Serial Ports
The NE310L2 module is provided by 3 Asynchronous serial ports:
Asynchronous Serial Port (USIF0)
Asynchronous Serial Port (USIF1)*
Auxiliary Serial Port
Several configurations can be designed for the serial port on the OEM hardware, but the
most common are:
RS232 PC com port
microcontroller UART @ 1.8V (Universal Asynchronous Receive Transmit)
microcontroller UART @ 5V or other voltages different from 1.8V
Depending on the type of serial port on the OEM hardware, a level translator circuit may
be needed to make the system work. On the NE310L2 the ports are CMOS 1.8.
Note:*The USIF1 is currently NOT supported by NE310L2 firmware.
