RM0453 Rev 2 197/1454
RM0453 Sub-GHz radio (SUBGHZ)
217
Cfg_DioIrq() command
Cfg_DioIrq(IrqMask, Irq1Mask, Irq2Mask, Irq3Mask) allows interrupts to be
masked and mapped on the IRQ lines.
Table 37. IRQ bit mapping and definition
Bit Source Description Packet type Operation
0 TxDone Packet transmission finished LoRa and GFSK Tx
1 RxDone Packet reception finished LoRa and GFSK Rx
2 PreambleDetected Preamble detected LoRa and GFSK Rx
3 SyncDetected Synchronization word valid GFSK Rx
4 HeaderValid Header valid LoRa Rx
5 HeaderErr Header CRC error LoRa Rx
6
Err
preamble, syncword, address,
CRC or length error
GFSK Rx
CrcErr CRC error LoRa Rx
7 CadDone Channel activity detection finished LoRa Cad
8 CadDetected Channel activity detected LoRa Cad
9 Timeout RX or TX timeout LoRa and GFSK Rx and Tx
15:10 Not applicable Reserved Not applicable
012345678
Opcode IrqMask[15:0] Irq1Mask[15:0]Irq2Mask[15:0]Irq3Mask[15:0]
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byte 0 bits 7:0 Opcode: 0x08
bytes 2:1 bits 15:0 IrqMask[15:0]: Global interrupt enable
See Table 37 for interrupt bit map definition. For each bit:
0: IRQ disabled
1: IRQ enabled
bytes 4:3 bits 15:0 Irq1Mask[15:0]: IRQ1 line Interrupt enable
0: interrupt on IRQ1 line disable
1: interrupt on IRQ1 line enabled
bytes 6:5 bits 15:0 Irq2Mask[15:0]: IRQ2 line Interrupt enable
0: interrupt on IRQ2 line disable
1: interrupt on IRQ2 line enabled
bytes 8:7 bits 15:0 Irq3Mask[15:0]: IRQ3 line Interrupt enable
0: interrupt on IRQ3 line disable
1: interrupt on IRQ3 line enabled
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