Semtech LR1110 - Page 13

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LR1110

User Manual Rev.1.0

UM.LR1110.W.APP March 2020

13 of 130

Semtech

www.semtech.com

LR1110 is optimized for low power and long battery life applications requiring indoor and outdoor geolocation. Its efficient

Wi-Fi and GNSS geolocation capabilities, coupled with highly optimized detection algorithms, allow achieving a

geolocation at a fraction of the power needed by existing solutions on the market.

Main Page

Table of Contents2
Introduction12
Scope12
Overview12
Figure 1-1: LR1110 Block Diagram12
System Modes14
Modes Description14
Standby14
Figure 2-1: LR1110 Modes and Transitions14
Power down15
Sleep15
Table 2-1: Setstandby Command15
Table 2-2: Setsleep Command15
Table 2-3: Sleepconfig Parameter16
Table 2-4: Sleep Mode Summary16
RX Mode17
TX Mode17
FS Mode18
GNSS Scanning Mode18
Wi-Fi Passive Scanning Mode18
DSP Mode18
Startup Sequence18
Reset18
Power-On-Reset and Brown-Out Reset19
Nreset19
Reboot Command19
Calibrations19
Table 2-5: Reboot Command19
Calibimage20
Calibrate20
Table 2-6: Calibimage Command20
Table 2-7: ISM Band20
Table 2-8: Calibrate Command20
Getversion21
Table 2-9: Calibparams Command21
Table 2-10: Getversion Command21
Table 2-11: Getversion Response21
Modes Transitions & Timings22
Table 2-12: Mode Transitions22
Host-Controller Interface23
Write Commands23
Read Commands23
Status Registers23
Figure 3-1: Write Command Timing Diagram23
Figure 3-2: Read Command Timing Diagram23
Stat124
Stat224
Table 3-1: Stat124
Table 3-2: Stat224
Busy25
Errors25
Geterrors25
Figure 3-3: BUSY Timing Diagram25
Clearerrors26
Table 3-3: Geterrors Command26
Table 3-4: Geterrors Response26
Table 3-5: Clearerrors Command26
Memory Access27
Writeregmem3227
Readregmem3227
Table 3-6: Writeregmem32 Command27
Table 3-7: Writeregmem32 Command (Cont.)27
Table 3-8: Readregmem32 Command27
Writeregmemmask3228
Writebuffer828
Table 3-9: Readregmem32 Response28
Table 3-10: Writeregmemmask32 Command28
Table 3-11: Writeregmemmask32 Command(Cont.)28
Table 3-12: Writebuffer8 Command28
Readbuffer829
Clearrxbuffer29
Table 3-13: Readbuffer8 Command29
Table 3-14: Readbuffer8 Response29
Table 3-15: Clearrxbuffer Command29
Gpios30
Interrupts30
Description30
Table 4-1: Irqtoenable Interruption Mapping30
Commands31
Table 4-2: Getstatus Command31
Table 4-3: Setdioirqparams Command32
Table 4-4: Clearirq Command32
RF Switch Control33
Setdioasrfswitch33
Table 4-5: Setdioasrfswitch Command33
Temperature Sensor34
Table 4-6: Gettemp Command34
Table 4-7: Gettemp Response34
Power Distribution35
Power Modes35
Over Current Protection35
VBAT Measurement35
Table 5-1: Setregmode Command35
Table 5-2: Power Regulation Options35
Power-On-Reset and Brown-Out-Reset36
Table 5-3: Getvbat Command36
Table 5-4: Getvbat Response36
Low Battery Detector37
Figure 5-1: LR1110 por and BRN Functions37
Clock Sources38
RC Oscillators Clock References38
High-Precision Clock References38
Khz Crystal38
Table 6-1: Configlfclock Command38
32 Mhz Crystal39
32 Mhz TCXO39
Figure 6-1: TCXO39
Table 6-2: Settcxomode Command40
Table 6-3: TCXO Supply Voltage Programming Values40
Sub Ghz Radio41
Description41
Figure 7-1: Sub-Ghz Radio41
Commands42
Setrffrequency42
Setrx42
Table 7-1: Setrffrequency Command42
Table 7-2: Setrx Command42
Settx43
Autotxrx43
Table 7-3: Settx Command43
Table 7-4: Autotxrx Command43
Setrxtxfallbackmode44
Setrxdutycycle44
Table 7-5: Setrxtxfallbackmode Command44
Table 7-6: Setrxdutycycle Command44
Figure 7-2: LR1110 Current Profile During RX Duty Cycle Operation45
Figure 7-3: RX Duty Cycle Upon Preamble Detection45
Stoptimeoutonpreamble46
Table 7-7: Stoptimeoutonpreamble Command46
Getrssiinst47
Getstats47
Table 7-8: Getrssiinst Command47
Table 7-9: Getrssiinst Response47
Table 7-10: Getstats Command47
Table 7-11: Getstats Response47
Resetstats48
Getrxbufferstatus48
Table 7-12: Resetstats Command48
Table 7-13: Getrxbufferstatus Command48
Table 7-14: Getrxbufferstatus Response48
Setrxboosted49
Table 7-15: Setrxboosted Command49
Modems50
Modem Configuration50
Setpackettype50
Figure 8-1: Lora® /(G)FSK Command Order50
Table 8-1: Setpackettype Command50
Getpackettype51
Lora® Modem Description51
Lora® Modulation Principle51
Table 8-2: Getpackettype Command51
Table 8-3: Getpackettype Response51
Figure 8-2: Lora® Signal Bandwidth52
Lora® Packet Format53
Figure 8-3: Lora® Packet Format53
Channel Activity Detection54
Lora® Commands55
Setmodulationparam55
Table 8-4: Setmodulationparam Command55
Table 8-5: Spreading Factor55
Table 8-6: Lora® Modulation Bandwidth55
Setpacketparam56
Table 8-7: Coding Rate56
Table 8-8: Lowdatarateoptimize56
Table 8-9: Setpacketparam Command56
Setcad57
Setcadparams57
Table 8-10: Setcad Command57
Table 8-11: Setcadparams Command57
Lorasynchtimeout58
Setlorapublicnetwork58
Table 8-12: Cadexitmode Parameter Definition58
Table 8-13: Lorasynchtimeout Command58
Table 8-14: Setlorapublicnetwork58
Getpacketstatus59
G)FSK Modem Description59
G)FSK Modulation Principle59
Table 8-15: Getpacketstatus Command59
Table 8-16: Getpacketstatus Response59
G)FSK Packet Engine60
G)FSK Packet Format60
Figure 8-4: Fixed-Length Packet60
Figure 8-5: Variable-Length Packet61
G)FSK Commands62
Setmodulationparam62
Figure 8-6: (G)FSK Whitening62
Table 8-17: Setmodulationparam Command62
Table 8-18: Pulseshape Parameter63
Table 8-19: Bandwidth Parameter63
Setpacketparam64
Table 8-20: Setpacketparam Command64
Table 8-21: Pbldetect: Preamble Detector Length64
Table 8-22: Addrcomp65
Table 8-23: Packettype65
Table 8-24: Crctype65
Table 8-25: Whitening65
Setgfsksyncword66
Setpacketadrs66
Setgfskcrcparams66
Table 8-26: Setgfsksyncword Command66
Table 8-27: Setpacketadrs Command66
Table 8-28: Setgfskcrcparams Command66
Setgfskwhitparams67
Data Buffer67
Data Buffer in Receive Mode67
Table 8-29: Setgfskwhitparams Command67
Table 8-30: Getrxbufferstatus Command68
Table 8-31: Getrxbufferstatus Response68
Table 8-32: Readbuffer8 Command68
Table 8-33: Readbuffer8 Response68
Data Buffer in Transmit Mode69
RSSI Functionality69
Table 8-34: Clearrxbufferstatus Command69
Table 8-35: Writebuffer8 Command69
Table 8-36: RSSI Information Origin and Meaning69
Power Amplifiers71
Figure 9-1: LR1110 Power Amplifiers71
PA Supply Scheme72
Figure 9-2: PA Block Diagram72
Low Power PA73
High Power PA73
Figure 9-3: Low Power PA VR_PA Voltage Vs. Txpower73
PA Output Power74
Low Power PA74
Figure 9-4: High Power PA VR_PA Voltage Vs. Txpower74
Figure 9-5: Low Power PA Output Power Vs. Txpower74
High Power PA75
PA Current Consumption76
Low Power PA76
Figure 9-6: HP PA Output Power Vs. Txpower76
Figure 9-7: IDDTX Vs Txpower, Low Power PA, DC-DC Configuration76
Figure 9-8: IDDTX Vs Txpower, Low Power PA, LDO Configuration77
High Power PA78
Figure 9-9: IDDTX Vs Txpower, High Power PA, DC-DC Configuration78
Figure 9-10: IDDTX Vs Txpower, High Power PA, LDO Configuration79
Impedance Matching Networks80
Multi-Band Operation80
RF Switch Implementation80
Table 9-1: Optimized Settings for LP PA with the same Matching Network80
Table 9-2: Optimized Settings for HP PA with the same Matching Network80
Direct-Tie Implementation81
Figure 9-11: RF Switch, Double PA Operation81
Figure 9-12: RF Switch, Single PA Operation (High Power PA Example)81
Figure 9-13: Single Tie Implementation: Only One PA Used (High Power PA Example)81
Figure 9-14: Single Tie Implementation: both Pas Used (High Power PA Example)81
Commands82
Setpaconfig82
Settxparams82
Table 9-3: Setpaconfig Command82
Table 9-4: Dutycycle Parameter82
Table 9-5: Settxparams Command82
Table 9-6: Ramptime83
Wi-Fi Passive Scanning84
Principle of Operation84
Figure 10-1: Wi-Fi Passive Scanning Sequence84
Wifiscan85
Table 10-1: Wifiscan Command85
Wi-Fi Passive Scanning Results86
Wi-Fi Passive Scanning Result Formats86
Basic Result Format87
Full Result Format87
Table 10-2: Basic Results Format Per MAC Address87
Table 10-3: Full Results Format Per MAC Address88
Table 10-4: Wi-Fi Datarateid Field88
Table 10-5: Wi-Fi Channel ID Field89
Table 10-6: Wi-Fi Macvalidation Field89
Table 10-7: Wi-Fi Frame Control Field89
Table 10-8: Subtype Description90
Wifigetnbresults91
Wifireadresults91
Table 10-9: Wifigetnbresults Command91
Table 10-10: Wifigetnbresults Response91
Table 10-11: Wifireadresults Command91
Table 10-12: Wifireadresults Response91
Wifiresetcumultimings92
Wifireadcumultimings92
Table 10-13: Wifiresetcumultimings Command92
Table 10-14: Wi-Fi Cumulative Timings Description92
Table 10-15: Wifireadcumultimings Command93
Table 10-16: Wifireadcumultimings Response93
GNSS Scanning94
GNSS Geolocation System Overview94
GNSS Principle of Operation95
Figure 11-1: GNSS System Overview95
GNSS API Functions96
Setgnssconstellationtouse96
Gnsssetmode96
Table 11-1: Gnsssetconstellationtouse96
Table 11-2: Gnsssetmode96
Gnssautonomous97
Gnssassisted97
Table 11-3: Gnssautonomous Command97
Table 11-4: Gnssassisted Command97
Gnsssetassistanceposition98
GNSS Scanning Results Description98
NAV Message Description98
Table 11-5: Gnsssetassistanceposition Command98
Gnssgetresultsize Command99
Figure 11-2: NAV Message Format99
Gnssreadresults100
Table 11-6: Gnssgetresultsize Command100
Table 11-7: Gnssgetresultsize Response100
Table 11-8: Gnssreadresults Command100
Table 11-9: Gnssreadresults Response100
Gnssgetnbsvdetected101
Gnssgetsvdetected101
Table 11-10: Gnssgetnbsvdetected Command101
Table 11-11: Gnssgetnbsvdetected Response101
Table 11-12: Gnssgetsvdetected Command101
Table 11-13: Gnssgetsvdetected Response101
Gnssgetconsumption102
GNSS Almanac102
Table 11-14: Gnssgetconsumption Command102
Table 11-15: Gnssgetconsumption Response102
Almanac Full Update103
Table 11-16: Gnssalmanacfullupdate103
Table 11-17: Almanacfullupdatepayload103
Table 11-18: Almanacheader103
Table 11-19: Svalmanac Format103
Crypto Engine105
Description105
Cryptographic Keys Definition105
Table 12-1: Cryptographic Keys Usage and Derivation105
Commands107
Cestatus107
Cryptosetkey107
Table 12-2: Cryptosetkey Command107
Table 12-3: Cryptosetkey Response107
Cryptoderiveandstorekey108
Cryptoprocessjoinaccept108
Table 12-4: Cryptoderiveandstorekey Command108
Table 12-5: Cryptoderiveandstorekey Response108
Table 12-6: Cryptoprocessjoinaccept Command108
Cryptocomputeaescmac109
Table 12-8: Cryptocomputeaescmac Command109
Table 12-9: Cryptocomputeaescmac Response109
Table 12-7: Cryptoprocessjoinaccept Response109
Cryptoverifyaescmac110
Table 12-10: Cryptocomputeaescmac Command Example110
Table 12-11: Cryptocomputeaescmac Response Example110
Table 12-12: Cryptoverifyaescmac Command110
Table 12-13: Cryptoverifyaescmac110
Cryptoaesencrypt01111
Cryptoaesencrypt111
Table 12-14: Cryptoaesencrypt01 Command111
Table 12-15: Cryptoaesencrypt01 Response111
Table 12-16: Cryptoaesencrypt Command111
Cryptoaesdecrypt112
Table 12-18: Cryptoaesdecrypt Command112
Table 12-19: Cryptoaesdecrypt Response112
Table 12-17: Cryptoaesencrypt Response112
Cryptostoretoflash113
Cryptorestorefromflash113
Table 12-20: Cryptostoretoflash Command113
Table 12-21: Cryptoaesdecrypt Response113
Table 12-22: Cryptorestorefromflash Command113
Table 12-23: Cryptorestorefromflash Response113
Cryptosetparam114
Cryptogetparam114
Table 12-24: Cryptosetparam Command114
Table 12-25: Cryptosetparam Response114
Table 12-26: Cryptogetparam Command114
Table 12-27: Cryptogetparam Response114
LR1110 Provisioning115
Description115
Provisioning Commands115
Getdeveui115
Getappeui115
Table 13-1: Getdeveui Command115
Table 13-2: Getdeveui Response115
Readdevicepin116
Table 13-3: Getappeui Command116
Table 13-4: Getappeui Response116
Table 13-5: Readdevicepin Command116
Table 13-6: Readdevicepin Response116
Test Commands117
Regulatory Overview117
Etsi117
Fcc117
Table 14-1: ETSI Test Signals117
Commands118
Settxcw118
Settxinfinitepreamble118
Table 14-2: Settxcw Command118
Table 14-3: Settxinfinitepreamble Command118
List of Commands119
Register / Memory Access Operations119
System Configuration / Status Operations119
Table 15-1: Register / Memory Access Operations119
Table 15-2: System Configuration / Status Operations119
Radio Configuration / Status Operations121
Table 15-3: Radio Configuration / Status Operation121
Wi-Fi Configuration / Status Operations123
Table 15-4: Wi-Fi Scanning Configuration / Status Operations123
GNSS Configuration / Status Operations124
Cryptoelement Configuration / Status Operations124
Table 15-5: GNSS Scanning Configuration / Status Operations124
Table 15-6: Cryptoelement Configuration / Status Operations124
Revision History126
Table 16-1: Revision History126

Semtech LR1110 - Page 13

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