SX1276IMLTRT View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SX1276IMLTRT

137 MHz to 1020 MHz Low Power Long Range Transceiver

Semtech Corporation 

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

Page 38

www.semtech.com

Share Link: