EasyManua.ls Logo

Telit Wireless Solutions ME910G1 - Serial Ports; Modem Serial Port 1 (USIF0)

Telit Wireless Solutions ME910G1
98 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
ME910G1 HW Design Guide
1VV0301593 Rev.7 Page 49 of 98 2021-02-02
Serial Ports
The ME910G1 module is provided with by 2 Asynchronous serial ports:
MODEM SERIAL PORT 1 (Main)
MODEM SERIAL PORT 2 (Auxiliary)
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 ME910G1 the ports are CMOS 1.8.
Modem serial port 1 (USIF0)
The serial port 1 on the ME910G1 is a +1.8V UART with all the 7 RS232 signals. It differs
from the PC-RS232 in the signal polarity (RS232 is reversed) and levels.
The following table is listing the available signals:
RS232
Pin
Signal
PAD
Name
Usage
1
C109/DCD N14 Data Carrier Detect
Output from the ME910G1 that indicates
the carrier presence
2
C104/RXD
M15
Transmit line *see Note
Output transmit line of ME910G1 UART
3
C103/TXD
N15
Receive line *see Note
Input receive of the ME910G1 UART
4
C108/DTR M14 Data Terminal Ready
Input to the ME910G1 that controls the
DTE READY condition
6
C107/DSR P14 Data Set Ready
Output from the ME910G1 that indicates
the module is ready
7
C105/RTS L14 Request to Send
Input to the ME910G1 that controls the
Hardware flow control
8
C106/CTS P15 Clear to Send
Output from the ME910G1 that controls
the Hardware flow control
9
C125/RING R14 Ring Indicator
Output from the ME910G1 that indicates
the incoming call condition
Table 21: Available Signals

Table of Contents

Other manuals for Telit Wireless Solutions ME910G1

Related product manuals