LR1121
User Manual Rev 1.1
UM.LR1121.W.APP Mar 2023
36 of 130
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The interrupts mapping table IrqToEnable is as follows:
Table 4-2: IrqToEnable Interruption Mapping
Bit Interrupt Description
0 RFU RFU
1 RFU RFU
2 TxDone Packet transmission completed
3 RxDone Packet received
4 PreambleDetected Preamble detected
5 SyncWordValid / HeaderValid Valid sync word / LoRa® header detected
6 HeaderErr LoRa header CRC error
7 Err
Packet received with error.
LoRa: Wrong CRC received
(G)FSK: CRC error
8 CadDone LoRa Channel activity detection finished
9 CadDetected LoRa Channel activity detected
10 Timeout RX or TX timeout
11 LrFhssHop LR-FHSS intra-packet hopping
12-18 RFU RFU
19-20 RFU RFU
21 LBD Low Battery Detection
22 CmdError Host command error
23 Error An error other than a command error occurred (see GetErrors)
24 FskLenError IRQ raised if the packet was received with a length error
25 FskAddrError IRQ raised if the packet was received with an address error
26-31 - RFU
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