NEO/LEA-M8T - Data sheet

UBX-15025193 - R05

Contents

Page 3 of 36

Production Information

Contents

1 Functional description .........................................................................................................................6

1.1 Overview........................................................................................................................................................6

1.2 Product features .........................................................................................................................................6

1.3 Performance.................................................................................................................................................7

1.4 Block diagram ..............................................................................................................................................8

1.5 Supported GNSS constellations ..............................................................................................................8

1.5.1 GPS ........................................................................................................................................................9

1.5.2 GLONASS .............................................................................................................................................9

1.5.3 BeiDou ...................................................................................................................................................9

1.5.4 Galileo....................................................................................................................................................9

1.6 Assisted GNSS (A-GNSS)..........................................................................................................................9

1.6.1 AssistNowTM Online..........................................................................................................................10

1.6.2 AssistNowTM Offline.........................................................................................................................10

1.6.3 AssistNowTM Autonomous..............................................................................................................10

1.7 Augmentation systems...........................................................................................................................10

1.7.1 Satellite-based augmentation system (SBAS) ..........................................................................10

1.7.2 QZSS ...................................................................................................................................................10

1.7.3 IMES ....................................................................................................................................................11

1.7.4 Differential GPS (D-GPS).................................................................................................................11

1.8 Precision timing, raw data and low duty-cycle operation .................................................................11

1.8.1 Time mode..........................................................................................................................................11

1.8.2 Timepulse and frequency outputs ................................................................................................12

1.8.3 Time mark ..........................................................................................................................................12

1.8.4 Timing integrity and availability ....................................................................................................12

1.8.5 Raw data.............................................................................................................................................13

1.8.6 Low duty-cycle operation ................................................................................................................13

1.9 TIMEPULSE................................................................................................................................................14

1.10Odometer....................................................................................................................................................14

1.11Data logging ...............................................................................................................................................14

1.12Geofencing..................................................................................................................................................14

1.13Message integrity protection .................................................................................................................14

1.14Spoofing detection ...................................................................................................................................15

1.15EXTINT: External interrupt......................................................................................................................15

1.15.1 Power control.....................................................................................................................................15

1.15.2 Aiding ..................................................................................................................................................15

1.16Protocols and interfaces .........................................................................................................................15

1.17Interfaces....................................................................................................................................................15

1.17.1 UART ...................................................................................................................................................16

1.17.2 USB ......................................................................................................................................................16

1.17.3 SPI ........................................................................................................................................................16

1.17.4 Display data channel (DDC) ............................................................................................................16