Datasheet

LARA-R2 series - Data Sheet
UBX-16005783 - R15 Page 3 of 48
Contents
Document Information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Functional description ......................................................................................................................... 5
1.1 Overview ........................................................................................................................................................ 5
1.2 Product features ......................................................................................................................................... 5
1.3 Block diagram .............................................................................................................................................. 6
1.4 Product description .................................................................................................................................... 7
1.5 AT command support ................................................................................................................................ 8
1.6 Supported features .................................................................................................................................... 9
2 Interfaces ................................................................................................................................................ 11
2.1 Power management .................................................................................................................................. 11
2.1.1 Module supply input (VCC) .............................................................................................................. 11
2.1.2 RTC supply input / output (V_BCKP) ............................................................................................. 11
2.1.3 Generic digital interfaces supply output (V_INT) ........................................................................ 11
2.2 Antenna interfaces .................................................................................................................................... 11
2.2.1 Antenna RF interfaces ...................................................................................................................... 11
2.2.2 Antenna detection ............................................................................................................................. 11
2.3 System functions ....................................................................................................................................... 12
2.3.1 Module power-on ............................................................................................................................... 12
2.3.2 Module power-off ............................................................................................................................... 12
2.3.3 Module reset ...................................................................................................................................... 13
2.3.4 Module / host configuration selection .......................................................................................... 13
2.4 SIM ............................................................................................................................................................... 13
2.4.1 SIM interface ..................................................................................................................................... 13
2.4.2 SIM detection .................................................................................................................................... 13
2.5 Serial communication .............................................................................................................................. 14
2.5.1 UART interface .................................................................................................................................. 14
2.5.2 USB interface ..................................................................................................................................... 15
2.5.3 HSIC interface ................................................................................................................................... 16
2.5.4 DDC (I
2
C) interface ............................................................................................................................. 17
2.5.5 SDIO interface .................................................................................................................................... 17
2.6 Audio ............................................................................................................................................................. 17
2.7 Clock output ................................................................................................................................................ 17
2.8 GPIO ............................................................................................................................................................. 18
3 Pin definition ......................................................................................................................................... 19
3.1 Pin assignment .......................................................................................................................................... 19
4 Electrical specifications ................................................................................................................... 24
4.1 Absolute maximum rating ....................................................................................................................... 24
4.1.1 Maximum ESD ................................................................................................................................... 24
4.2 Operating conditions ................................................................................................................................ 25