Neoway N720 - 1 Introduction to N720; 1.1 Overview; 1.2 Block Diagram; 1.3 Features

N720 Hardware User Guide
Copyright © Neoway Technology Co., Ltd iii
Contents
1 Introduction to N720 ......................................................................................................... 1
1.1 Overview ............................................................................................................................................ 1
1.2 Block Diagram ................................................................................................................................... 2
1.3 Features .............................................................................................................................................. 3
2 Application Interfaces ...................................................................................................... 5
2.1 Specifications and Pin Definition ....................................................................................................... 5
2.2 Pin Description ................................................................................................................................... 6
2.3 Power Control Interfaces .................................................................................................................. 14
2.3.1 VBAT ...................................................................................................................................... 14
2.3.2 VDDIO_1P8 ............................................................................................................................ 18
2.3.3 ON/OFF .................................................................................................................................. 18
2.3.4 RESET .................................................................................................................................... 20
2.4 USB Interface ................................................................................................................................... 21
2.5 UIM Card Interface .......................................................................................................................... 22
2.6 GPIO Interfaces ................................................................................................................................ 23
2.6.1 UART ...................................................................................................................................... 24
2.6.2 ADC ........................................................................................................................................ 26
2.6.3 NET_LIGHT ........................................................................................................................... 27
2.6.4 DTR ......................................................................................................................................... 27
2.6.5 RING Signal Indicator ............................................................................................................ 28
2.7 AUDIO Interfaces ............................................................................................................................. 29
2.7.1 PCM ........................................................................................................................................ 29
2.7.2 I2C ........................................................................................................................................... 31
2.8 WLAN Interfaces ............................................................................................................................. 31
2.8.1 SDIO ....................................................................................................................................... 31
2.8.2 WLAN Control ........................................................................................................................ 33
2.9 Commissioning Interfaces ................................................................................................................ 35