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 31
sleep)
B_PU Configurable I/O
73 PCM_OUT
B_PD
1.8V
PCM output data
DO SPI output data
DI UART2 clear to send
74 PCM_IN
B_PD
1.8V
PCM input data
DI SPI input data
DI UART2 request to Send
75 PCM_SYNC
B_PD
1.8V
PCM synchronization signal
DO SPI chip select
DO UART2 transmit data
76 PCM_CLK
B_PD
1.8V
PCM clock
DO SPI clock
DI UART2 receive data
77 GND -- -- Ground
78 GND -- -- Ground
79# GNSS_ANT -- --
L508E: Keep it open
L508LA: GNSS antenna
80 GND -- -- Ground
81 GND -- -- Ground
82 ANT_MAIN AI，AO Module main antenna
83 RESERVED -- -- Reserved for other purposes, Keep it open
84 GPIO_05
B_PU
1.8V
Configurable I/O
DI RGMII Receive Data 3
85 DL_KEY DI USB Download enable
86 PWRKEY AI VBAT Input pad generally connected to a keypad