Datasheet

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SX1272/73
WIRELESS, SENSING & TIMING DATASHEET
Rev. 2 - July 2014
©2014 Semtech Corporation
RegSeqConfig2
(0x37)
7-5 FromReceive rw 0x00
Controls the Sequencer transition from the Receive state
000 and 111: unused
001: to PacketReceived state on a
PayloadReady interrupt
010: to LowPowerSelection on a
PayloadReady interrupt
011: to PacketReceived state on a
CrcOk interrupt (1)
100: to SequencerOff state on a
Rssi interrupt
101: to SequencerOff state on a
SyncAddress interrupt
110: to SequencerOff state on a
PreambleDetect interrupt
Irrespective of this setting, transition to LowPowerSelection on a
T2 interrupt
(1) If the CRC is wrong (corrupted packet, with CRC on but
CrcAutoClearOn=0), the PayloadReady interrupt will drive the
sequencer to RxTimeout state.
4-3 FromRxTimeout rw 0x00
Controls the state-machine transition from the Receive state on a
RxTimeout interrupt (and on PayloadReady if FromReceive =
011):
00: to Receive State, via ReceiveRestart
01: to Transmit state
10: to LowPowerSelection
11: to SequencerOff state
Note: RxTimeout interrupt is a TimeoutRxRssi,
TimeoutRxPreamble or TimeoutSignalSync interrupt
2-0 FromPacketReceived rw 0x00
Controls the state-machine transition from the PacketReceived
state:
000: to SequencerOff state
001: to Transmit state on a FifoEmpty interrupt
010: to LowPowerSelection
011: to Receive via FS mode, if frequency was changed
100: to Receive state (no frequency change)
RegTimerResol
(0x38)
7-4 unused r - unused
3-2 Timer1Resolution rw 0x00
Resolution of Timer 1
00: Timer1 disabled
01: 64 us
10: 4.1 ms
11: 262 ms
1-0 Timer2Resolution rw 0x00
Resolution of Timer 2
00: Timer2 disabled
01: 64 us
10: 4.1 ms
11: 262 ms
RegTimer1Coef
(0x39)
7-0 Timer1Coefficient rw 0xF5 Multiplying coefficient for Timer 1
RegTimer2Coef
(0x3A)
7-0 Timer2Coefficient rw 0x20
Multiplying coefficient for Timer 2
Name
(Address)
Bits
Variable Name
Mode
Default
value
FSK/OOK Description