u-blox NORA-W10 Series - Table of Contents; Contents

NORA-W10 series - System integration manual
UBX-22005601 - R04 Contents Page 3 of 56
C1-Public
Contents
Document information ......................................................................................................................2
Contents ..............................................................................................................................................3
1 Module overview ..........................................................................................................................6
1.1 Module architecture .......................................................................................................................................... 6
1.1.1 Block diagram ............................................................................................................................................. 7
1.2 Pin definition ........................................................................................................................................................ 8
1.2.1 General Purpose Input and Output, GPIO pins.................................................................................. 8
1.3 Pin assignment ................................................................................................................................................... 8
1.4 Pin list..................................................................................................................................................................... 9
2 Module integration ................................................................................................................... 12
2.1 CPU ....................................................................................................................................................................... 12
2.2 Power modes...................................................................................................................................................... 12
2.2.1 Low Power mode with Low Frequency Clock ................................................................................... 12
2.3 Power supply ...................................................................................................................................................... 12
2.3.1 Module supply input (VCC) ................................................................................................................... 13
2.3.2 Digital I/O interfaces reference voltage (VCC_IO) .......................................................................... 13
2.3.3 VCC application circuits ........................................................................................................................ 13
2.4 Module reset ...................................................................................................................................................... 13
2.5 Bootstrap pins ................................................................................................................................................... 13
2.6 Antenna integration ........................................................................................................................................ 14
2.6.1 External RF antenna interface............................................................................................................. 14
2.6.2 Internal antenna....................................................................................................................................... 15
2.7 Data interfaces.................................................................................................................................................. 15
2.7.1 Universal asynchronous serial interface (UART) ........................................................................... 15
2.7.2 Serial peripheral interface (SPI)........................................................................................................... 15
2.7.3 Dual/Quad SPI ........................................................................................................................................... 16
2.7.4 TWAI ............................................................................................................................................................ 16
2.8 Analog interfaces ............................................................................................................................................. 16
2.8.1 Analog to digital converters ................................................................................................................. 16
2.9 No-connect pins (NC) ...................................................................................................................................... 16
3 Design-in..................................................................................................................................... 17
3.1 Overview .............................................................................................................................................................. 17
3.2 Antenna interface ............................................................................................................................................ 17
3.2.1 RF transmission line design (NORA-W101) .................................................................................... 18
3.2.2 Antenna design (NORA-W101) ........................................................................................................... 20
3.2.3 On-board antenna design ..................................................................................................................... 23
3.3 Data communication interfaces .................................................................................................................. 25
3.3.1 Asynchronous serial interface (UART) design ................................................................................ 25
3.4 General high-speed layout guidelines ........................................................................................................ 25
3.4.1 Considerations for schematic design and PCB floor-planning .................................................. 25