Semtech LR1110 - Page 3

LR1110
User Manual Rev.1.0
UM.LR1110.W.APP March 2020
3 of 130
Semtech
www.semtech.com
4.1.2 Commands............................................................................................................................. 31
4.2 RF Switch Control ............................................................................................................................ 33
4.2.1 SetDioAsRfSwitch................................................................................................................ 33
4.3 Temperature Sensor ....................................................................................................................... 34
5. Power Distribution....................................................................................................................................... 35
5.1 Power Modes .................................................................................................................................... 35
5.2 Over Current Protection ................................................................................................................ 35
5.3 VBAT Measurement ........................................................................................................................ 35
5.4 Power-On-Reset and Brown-Out-Reset ................................................................................... 36
5.5 Low Battery Detector ..................................................................................................................... 37
6. Clock Sources................................................................................................................................................. 38
6.1 RC Oscillators Clock References ................................................................................................. 38
6.2 High-Precision Clock References ............................................................................................... 38
6.2.1 32.768 kHz Crystal ............................................................................................................... 38
6.2.2 32 MHz Crystal...................................................................................................................... 39
6.2.3 32 MHz TCXO ........................................................................................................................ 39
7. Sub GHz Radio ............................................................................................................................................... 41
7.1 Description ......................................................................................................................................... 41
7.2 Commands ......................................................................................................................................... 42
7.2.1 SetRfFrequency.................................................................................................................... 42
7.2.2 SetRx ........................................................................................................................................ 42
7.2.3 SetTx......................................................................................................................................... 43
7.2.4 AutoTxRx ................................................................................................................................ 43
7.2.5 SetRxTxFallbackMode ....................................................................................................... 44
7.2.6 SetRxDutyCycle.................................................................................................................... 44
7.2.7 StopTimeoutOnPreamble ............................................................................................... 46
7.2.8 GetRssiInst.............................................................................................................................. 47
7.2.9 GetStats................................................................................................................................... 47
7.2.10 ResetStats ............................................................................................................................ 48
7.2.11 GetRxBufferStatus............................................................................................................. 48
7.2.12 SetRxBoosted ..................................................................................................................... 49
8. Modems ........................................................................................................................................................... 50
8.1 Modem Configuration ................................................................................................................... 50
8.1.1 SetPacketType ..................................................................................................................... 50
8.1.2 GetPacketType ..................................................................................................................... 51
8.2 LoRa® Modem Description ........................................................................................................... 51
8.2.1 LoRa® Modulation Principle............................................................................................. 51
8.2.2 LoRa® Packet Format.......................................................................................................... 53
8.2.3 Channel Activity Detection.............................................................................................. 54
8.3 LoRa® Commands ............................................................................................................................ 55
8.3.1 SetModulationParam......................................................................................................... 55
8.3.2 SetPacketParam................................................................................................................... 56
8.3.3 SetCad ..................................................................................................................................... 57
8.3.4 SetCadParams....................................................................................................................... 57
8.3.5 LoRaSynchTimeout............................................................................................................. 58
8.3.6 SetLoRaPublicNetwork...................................................................................................... 58