Installation Instructions
Table Of Contents
- Contents
- List of Table
- List of Figures
- 1 About this document
- 2 Product Overview
- 3 Mechanical Dimensions
- 4 Interface description
- 4.1 Pin Definition
- 4.2 Operating conditions
- 4.3 Digital logic characteristics
- 4.4 Power interface
- 4.5 USIM card interface
- 4.6 PCM interface
- 4.7 USB2.0 interface
- 4.8 UART interface
- 4.9 SPI interface
- 4.10 I2C interface
- 4.11 Network light
- 4.12 System Status Indication
- 4.13 Flight Mode
- 4.14 Forced USB download interface
- 4.15 SD card interface
- 4.16 SDIO_WIFI/EMMC interface
- 4.17 PCIe interface
- 4.18 RMII/RGMII interface
- 4.19 AUDIO interface
- 4.20 ADC
- 4.21 GPIOs
- 4.22 Power on/off and reset interface
- 4.23 Antenna interface
- 5 Product characteristics
- 6 Design Guideline
- 7 Storage, Production and Package
- 8 Safety Information
- 空白页面
- 空白页面
L508 Hardware Design
Copyright© Shanghai Mobiletek Communication Ltd 47
66 UART_RTS DO Request to Send
67 UART_CTS DI Clear to send
68 UART_RX DI
Receive data, For AT comma
nd and data
transmission.
69 UART_RI DO Ring indicator
70 UART_DCD DO Data carrier detect
71 UART_TX DO
Send data, F
or AT command and data
transmission.
72 UART_DTR DI
Data terminal ready (Control module wake or
sleep)
114# UART2_TX DO UART2 transmit data
115# UART2_RX DI UART2 receive data
Note: UART2 signal can be used in GNSS function, UART2 can not be used for other purposes when
L508LA/L508C/L508TLC has GNSS function.
4.8.2 UART interface application
The UART can be connected in full RS232 mode, 4-wire mode or 2-wire mode if it is used in
communication between module and application processor and the level is 1.8V matching.