Uart2; Host Uart; Ring Indicate - Fibocom G510 Hardware User Manual

DCD
All flow control handshakes are supported: hardware or none.
The UART1 default port configuration is 8 data bits, 1 stop bit and no parity, with none flow control
and auto baud rate detect enabled.

3.7.2 UART2

UART2 supports a few AT commands, please refer to AT Command User Manual for details.
Pin No. Signal Name
40 UART2_TXD
39 UART2_RXD
Application MCU
TXD
RXD

3.7.3 HOST UART

HOST UART is a debug UART, which is used for downloading, calibrating, trace and so on; it doesn't
support any AT command. This interface is only used when debugging, users only need to connect to the
test point.
Application MCU
TXD
RXD

3.7.4 Ring Indicate

The UART1_RING signal serves to indicate incoming calls and other types of URCs (Unsolicited Result
Code). It can also be used to send pulses to the host application, for example to wake up the application
from power saving state. The following figure illustrates the module gets a message.
G510 Hardware User Manual
Description
Module Transmitted Data
Module Received Data
Direction
Direction
Pin 17 UART1_DCD
Feature
G510 Transmitted Data
G510 Received Data
Module
Pin 39 UART2_RXD
Pin 40 UART2_TXD
Module
Pin 11 HST_RXD
Pin 12 HST_TXD
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