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TOBY-L2 and MPCI-L2 series - System Integration Manual

UBX-13004618 - R08 Early Production Information Contents

Page 4 of 158

Contents

Preface ................................................................................................................................ 3

Contents .............................................................................................................................. 4

1 System description ....................................................................................................... 8

1.1 Overview .............................................................................................................................................. 8

1.2 Architecture ........................................................................................................................................ 10

1.2.1 Internal blocks ............................................................................................................................. 11

1.3 Pin-out ............................................................................................................................................... 12

1.3.1 TOBY-L2 series pin assignment .................................................................................................... 12

1.3.2 MPCI-L2 series pin assignment .................................................................................................... 17

1.4 Operating modes ................................................................................................................................ 19

1.5 Supply interfaces ................................................................................................................................ 21

1.5.1 Module supply input (VCC or 3.3Vaux) ....................................................................................... 21

1.5.2 RTC supply input/output (V_BCKP) .............................................................................................. 28

1.5.3 Generic digital interfaces supply output (V_INT) ........................................................................... 29

1.6 System function interfaces .................................................................................................................. 30

1.6.1 Module power-on ....................................................................................................................... 30

1.6.2 Module power-off ....................................................................................................................... 32

1.6.3 Module reset ............................................................................................................................... 34

1.6.4 Module configuration selection by host processor ....................................................................... 34

1.7 Antenna interface ............................................................................................................................... 35

1.7.1 Antenna RF interfaces (ANT1 / ANT2) .......................................................................................... 35

1.7.2 Antenna detection interface (ANT_DET) ...................................................................................... 38

1.8 SIM interface ...................................................................................................................................... 38

1.8.1 SIM interface ............................................................................................................................... 38

1.8.2 SIM detection interface ............................................................................................................... 38

1.9 Data communication interfaces .......................................................................................................... 39

1.9.1 Universal Serial Bus (USB) ............................................................................................................ 39

1.9.2 Asynchronous serial interface (UART)........................................................................................... 43

1.9.3 DDC (I

C) interface ...................................................................................................................... 54

1.9.4 Secure Digital Input Output interface (SDIO) ................................................................................ 55

1.10 Audio .............................................................................................................................................. 55

1.10.1 Digital audio over I

S interface ..................................................................................................... 55

1.11 General Purpose Input/Output ........................................................................................................ 56

1.12 Mini PCIe specific signals (W_DISABLE#, LED_WWAN#) .................................................................. 57

1.13 Reserved pins (RSVD) ...................................................................................................................... 57

1.14 Not connected pins (NC) ................................................................................................................. 57

1.15 System features............................................................................................................................... 58

1.15.1 Network indication ...................................................................................................................... 58

1.15.2 Antenna supervisor ..................................................................................................................... 58