Neoway N720 OpenLinux - Table of Contents

N720 OpenLinux
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
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Contents
1 About N720 OpenLinux ............................................................................. 1
1.1 Product Overview ......................................................................................................................... 1
1.2 Block Diagram .............................................................................................................................. 2
1.3 Basic Features ............................................................................................................................. 3
2 Module Pins ............................................................................................... 6
2.1 Pad Layout ................................................................................................................................... 6
3 Application Interfaces .............................................................................. 15
3.1 Power Interface .......................................................................................................................... 15
3.1.1 VBAT .................................................................................................................................. 15
3.1.2 VDD_1P8 ........................................................................................................................... 19
3.2 Control Interfaces ....................................................................................................................... 20
3.2.1 PWRKEY_N ...................................................................................................................... 20
3.2.2 RESET_N .......................................................................................................................... 23
3.3 Peripheral Interfaces .................................................................................................................. 24
3.3.2 USB ................................................................................................................................... 24
3.3.3 USIM .................................................................................................................................. 26
3.3.4 UART ................................................................................................................................. 27
3.3.5 SDC ................................................................................................................................... 31
3.3.6 I2S/PCM ............................................................................................................................ 35
3.3.7 SPI ..................................................................................................................................... 39
3.3.8 I2C ..................................................................................................................................... 41
3.4 Network and Connection ............................................................................................................ 45
3.4.1 Ethernet ............................................................................................................................. 45
3.4.2 WLAN ................................................................................................................................ 48
3.4.3 Bluetooth ........................................................................................................................... 51
3.5 RF Interface ................................................................................................................................ 52
3.5.1 ANT_MAIN/ANT_DIV antenna interface ........................................................................... 53
3.5.2 ANT_GNSS Interface ........................................................................................................ 55
3.5.3 Antenna Assembling .......................................................................................................... 58
3.6 GPIO .......................................................................................................................................... 59
3.7 MUX Interfaces .......................................................................................................................... 60
3.8 Other Interfaces ......................................................................................................................... 63
3.8.1 GNSS_LNA_EN ................................................................................................................ 63
3.8.2 ADC ................................................................................................................................... 63
3.8.3 RING .................................................................................................................................. 63
3.8.4 DTR ................................................................................................................................... 64
3.8.5 USB_BOOT ....................................................................................................................... 66
4 Electric Feature and Reliability ................................................................ 67
4.1 Electric Features ........................................................................................................................ 67
4.2 Temperature Features ................................................................................................................ 67