RFM92 Datasheet, PDF (117/126 Pages) List of Unclassifed Manufacturers – Low Power Long Range Transceiver Module

RFM92W/93W V3.0
Wanted Signal
Preamble ( Preamble + Sync = T2 )
Sync
Word
Payload
Crc
Idle
Timer1 RxTimeout
Timer2
Receive
Preamble
Detect
Sync
Address
Fifo
Level
Figure 53. Listen Mode with Preamble Received & Valid SyncAddress
7.3.2.2. Sequencer Configuration
The following graph shows Listen mode - Wake on SyncAddress state machine:
State Machine
Sequencer Off
&
Initial mode = Sleep or Standby
Start bit set
IdleMode = 1 : Sleep
Start
FromStart = 00
LowPower ^{LowPowerSelection = 1}
Selection
Idle
On T1
FromIdle = 1
FromRxTimeout = 10
RxTimeout
On T2
On RxTimeout
Receive
On SyncAdress
FromReceive = 101 _{Sequencer Off}
Figure 54. Wake On SyncAddress State Machine
This example configuration is achieved as follows:
Table 45 Listen Mode with SyncAddress Condition Settings
IdleMode
FromStart
Variable
Effect
1: Sleep mode
00: To LowPowerSelection
Page 117
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