RFM92 Datasheet, PDF (35/126 Pages) List of Unclassifed Manufacturers – Low Power Long Range Transceiver Module

RFM92W/93W V3.0
4.1.5. LoRa^TM Modem State Machine Sequences
The sequence for transmission and reception of data to and from the LoRa^TM 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 LoRa^TM transmit sequence.
Figure 9. LoRa^TM modulation transmission sequence.
Š Static configuration registers can only be accessed in Sleep mode, Stand-by mode or FSTX mode.
Š The LoRa^TM FIFO can only be filled in Stand-by mode.
Š Data transmission is initiated by sending TX mode request.
Š Upon completion the TxDone interrupt is issued and the radio returns to Stand-by mode.
Š Following transmission the radio can be manually placed in Sleep mode or the FIFO refilled for a subsequent Tx
operation.
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