User's Manual

TOBY-R2 series - Data Sheet
UBX-16005785 - R06 Contents
Page 3 of 41
Contents
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 ............................................................................................................................... 8
2 Interfaces .................................................................................................................... 10
2.1 Power management ........................................................................................................................... 10
2.1.1 Module supply input (VCC) ......................................................................................................... 10
2.1.2 RTC supply input / output (V_BCKP) ............................................................................................ 10
2.1.3 Generic digital interfaces supply output (V_INT) ........................................................................... 10
2.2 Antenna interfaces ............................................................................................................................. 10
2.2.1 Antenna RF interfaces ................................................................................................................. 10
2.2.2 Antenna detection ...................................................................................................................... 10
2.3 System functions ................................................................................................................................ 11
2.3.1 Module power-on ....................................................................................................................... 11
2.3.2 Module power-off ....................................................................................................................... 11
2.3.3 Module reset ............................................................................................................................... 12
2.3.4 Module / host configuration selection ......................................................................................... 12
2.4 SIM ..................................................................................................................................................... 12
2.4.1 SIM interface ............................................................................................................................... 12
2.4.2 SIM detection .............................................................................................................................. 12
2.5 Serial communication ......................................................................................................................... 13
2.5.1 UART interface ............................................................................................................................ 13
2.5.2 USB interface............................................................................................................................... 14
2.5.3 DDC (I
2
C) interface ...................................................................................................................... 15
2.5.4 SDIO interface ............................................................................................................................. 15
2.6 Audio ................................................................................................................................................. 15
2.7 Clock output ...................................................................................................................................... 15
2.8 GPIO ................................................................................................................................................... 16
3 Pin definition .............................................................................................................. 17
3.1 Pin assignment ................................................................................................................................... 17
4 Electrical specifications .............................................................................................. 22
4.1 Absolute maximum rating .................................................................................................................. 22
4.1.1 Maximum ESD ............................................................................................................................. 22