Contents
Copyright © Fibocom Wireless Inc. 2
4.2.2 Auto power-on ......................................................................................................37
4.2.3 Power-off ................................................................................................................38
4.2.4 Reset........................................................................................................................39
4.3 Operating Mode..........................................................................................................41
4.3.1 Flight mode............................................................................................................41
4.3.2 Sleep........................................................................................................................41
4.3.2.1 USB Application (USB Suspend Not Supported and VBUS Supported)
.........................................................................................................................................41
4.3.2.2 USB Application (USB Suspend Not Supported and VBUS Not
Supported) ....................................................................................................................42
4.3.2.3 USB Application (USB Suspend Supported)............................................43
4.3.2.4 Disabling USB .................................................................................................43
4.4 Baseband Interface....................................................................................................44
4.4.1 USB ..........................................................................................................................44
4.4.2 UART ........................................................................................................................45
4.4.3 I2C.............................................................................................................................46
4.4.4 SD card....................................................................................................................47
4.4.5 ADC ..........................................................................................................................48
4.4.6 USIM ........................................................................................................................48
4.4.6.1 (U)SIM Card Connector with Card Detection Signal .............................48
4.4.6.2 (U)SIM Card Connector Without Card Detection Signals ....................50
4.4.6.3 (U)SIM Hot Plugging .....................................................................................50
4.4.6.4 (U)SIM Card Design Requirements ...........................................................51
4.4.7 PCM..........................................................................................................................51
4.4.7.1 PCM Interface Description ..........................................................................52
4.4.7.2 PCM Signal Description................................................................................52
4.4.8 Status Indicator ....................................................................................................54
4.4.8.1 Network Status Indicator.............................................................................54
4.4.8.2 STATES ..............................................................................................................56
4.4.9 HSIC Interface*.....................................................................................................56
4.4.10 LCD Interface ......................................................................................................56