SX1276 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SX1276' PDF : 132 Pages View PDF
SX1276/77/78/79
WIRELESS, SENSING & TIMING
DATASHEET
4.1.6. LoRaTM Modem State Machine Sequences
The sequence for transmission and reception of data to and from the LoRaTM modem, together with flow charts of typical
sequences of operation, are detailed below.
Data Transmission Sequence
In transmit mode power consumption is optimized by enabling RF, PLL and PA blocks only when packet data needs to be
transmitted. Figure 9 shows a typical LoRaTM transmit sequence.
Figure 9. LoRaTM Modulation Transmission Sequence.
Static configuration registers can only be accessed in Sleep mode, Standby mode or FSTX mode.
The LoRaTM FIFO can only be filled in Standby mode.
Data transmission is initiated by sending TX mode request.
Upon completion the TxDone interrupt is issued and the radio returns to Standby mode.
Following transmission the radio can be manually placed in Sleep mode or the FIFO refilled for a subsequent Tx
operation.
Rev. 4 - March 2015
©2015 Semtech Corporation
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