Semtech LR1110 - LR1110 SetRxDutyCycle Command

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