Table Of Contents - Semtech LR1121 User Manual

Table of Contents

1. Introduction.................................................................................................................................................... 12
1.1 Scope ................................................................................................................................................... 12
1.2 Overview ............................................................................................................................................. 12
2. System Processes.......................................................................................................................................... 13
2.1 System Modes ................................................................................................................................... 13
2.1.1 Boot .......................................................................................................................................... 14
2.1.2 Standby................................................................................................................................... 14
2.1.3 Calibrations............................................................................................................................ 15
2.1.4 Power Down.......................................................................................................................... 16
2.1.5 Sleep......................................................................................................................................... 17
2.1.6 Reset ........................................................................................................................................ 18
2.1.7 RX Mode.................................................................................................................................. 19
2.1.8 TX Mode.................................................................................................................................. 19
2.1.9 FS Mode .................................................................................................................................. 20
2.2 Startup Sequence ............................................................................................................................ 20
2.3 Firmware Upgrade .......................................................................................................................... 21
2.3.1 GetVersion ............................................................................................................................. 21
2.3.2 EraseFlash............................................................................................................................... 21
2.3.3 WriteFlashEncrypted.......................................................................................................... 22
2.4 Mode Transitions & Timings ........................................................................................................ 22
2.5 Info Page ............................................................................................................................................. 23
2.5.1 EraseInfoPage ....................................................................................................................... 23
2.5.2 WriteInfoPage....................................................................................................................... 23
2.5.3 ReadInfoPage........................................................................................................................ 24
3. Host-Controller Interface ........................................................................................................................... 25
3.1 Write Commands ............................................................................................................................. 25
3.2 Read Commands .............................................................................................................................. 25
3.3 Command Endianness ................................................................................................................... 26
3.4 Status Registers ................................................................................................................................ 27
3.4.1 GetStatus ................................................................................................................................ 27
3.4.2 Stat1 ......................................................................................................................................... 27
3.4.3 Stat2 ........................................................................................................................................ 28
3.5 BUSY ..................................................................................................................................................... 29
3.6 Errors .................................................................................................................................................... 30
3.6.1 GetErrors................................................................................................................................. 30
3.6.2 ClearErrors.............................................................................................................................. 30
3.7 Memory Access ................................................................................................................................ 31
3.7.1 WriteRegMem32.................................................................................................................. 31
3.7.2 ReadRegMem32................................................................................................................... 31
3.7.3 WriteRegMemMask32 ....................................................................................................... 32
3.7.4 WriteBuffer8 .......................................................................................................................... 32
3.7.5 ReadBuffer8 ........................................................................................................................... 33
3.7.6 ClearRxBuffer ........................................................................................................................ 33
3.7.7 GetRandomNumber........................................................................................................... 33
LR1121
User Manual Rev 1.1
UM.LR1121.W.APP Mar 2023
www.semtech.com 3 of 130
Semtech
Proprietary & Confidential