Integration Guide
Table Of Contents
- Module Integration Guide
- Preface
- About this Guide
- Introduction
- Manufacturing Process
- Hardware Integration Recommendations
- PCB Layout Rules
- Bring-Up and Testing
- Hardware Test Preparation
- Abbreviations
HARDWARE INTEGRATION RECOMMENDATIONS
HOST COMMUNICATIONS SIGNALS
10 PROPRIETARY MODULE INTEGRATION GUIDE
SEQUANS Communications
3.3.2 General Notes on UART Connections
VZM20Q uses the DCE-DTE convention for UART lines.
The TXD output from the device at one end of the link connects to the RXD
input at the other end of the link and vice versa. Figure 3-1 represents the
typical implementation for the UART connection (including hardware flow
control in case of high-speed UART).
TXD and RXD signals are mandatory for all interfaces. The other signals are
optional. Only UART0 interface supports all data transfer signals.
The DCE (Data Communication Equipment) device will communicate with
the customer application (DTE) using the following signals:
• Port TXD on Application sends data to the VZM20Q's TXD signal line.
• Port RXD on Application receives data from the VZM20Q's RXD signal
line.
Figure 3-1: UART0, UART1, UART2 Connection Implementation
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