Setrxtxfallbackmode; Setrxdutycycle; Table 7-5: Setrxtxfallbackmode Command; Table 7-6: Setrxdutycycle Command - Semtech LR1110 User Manual

•
Timeout defines the timeout of the second mode, after the automatic transition. It is expressed in periods of the
32.768kHz RTC. The maximum timeout value coresponds to 512 s.
0x000000 disables the timeout function.

If the AutoTxRx mode is enabled, and a SetTx( ) command is sent to the device, the device will go to RX mode after TX_DONE
and the given delay. Timeout is used as the RxTimeout of the auto RX.
If the AutoTxRx mode is enabled, and a SetRx( ) command is sent to the chip, the chip will go to Tx mode after RX_DONE
and the given delay. Timeout is used as the TxTimeout of the auto Tx.
If a RxDutyCycleMode is started, this mode is not used.

7.2.5 SetRxTxFallbackMode

The command SetRxTxFallbackMode( ) defines in which mode the device goes after a packet transmission or a packet
reception.

Table 7-5: SetRxTxFallbackMode Command

Byte
Data from Host
Data to Host
• FallbackMode values:
0x01: Standby RC mode (default value).

0x02: Standby Xosc mode

0x03: FS mode

If a RxDutyCycle is started or an AutoRxTx is configured, this mode is not used.
The fallback mode is also used for RxDutyCycleMode after the RX_DONE interrupt, or for an AutoRxTx after the RX to TX, or
TX to RX sequence is completed.

7.2.6 SetRxDutyCycle

The command SetRxDutyCycle( ) periodically opens RX windows. Between RX windows, the device goes in Sleep mode (with
retention).

Table 7-6: SetRxDutyCycle Command

Byte 0
Data from
0x02
Host
Data to
Stat1
Host
LR1110
User Manual Rev.1.0
UM.LR1110.W.APP March 2020
0
0x02
Stat1
1 2
RxPeriod RxPeriod
0x14
(23:16) (15:8)
IrqStatus IrqStatus
Stat2
(31:24) (23:16)
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1
0x13
Stat2
3 4 5
Sleep
RxPeriod
Period
(7:0)
(23:16)
IrqStatus IrqStatus
(15:8) (7:0)
2
FallbackMode
IrqStatus (31:24)
6 7
Sleep Sleep
Period Period Mode
(15:8) (7:0)
0x00 0x00 0x00
44 of 130
8
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