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
4.2.8.3. Timers
Two timers (Timer1 and Timer2) are also available in order to define periodic sequences. These timers are used to
generate interrupts, which can trigger transitions of the Sequencer.
T1 interrupt is generated (Timer1Resolution * Timer1Coefficient) after T2 interrupt or SequencerStart. command.
T2 interrupt is generated (Timer2Resolution * Timer2Coefficient) after T1 interrupt.
The timers’ mechanism is summarized on the following diagram.
Sequencer Start
T2
interrupt
Timer2
Timer1
T1
interrupt
Note
Figure 23. Timer1 and Timer2 Mechanism
The timer sequence is completed independently of the actual Sequencer state. Thus, both timers need to be on to
achieve periodic cycling.
Table 27 Sequencer Timer Settings
Variable
Timer1Resolution
Timer2Resolution
Timer1Coefficient
Timer2Coefficient
Description
Resolution of Timer1
00: disabled
01: 64 us
10: 4.1 ms
11: 262 ms
Resolution of Timer2
00: disabled
01: 64 us
10: 4.1 ms
11: 262 ms
Multiplying coefficient for Timer1
Multiplying coefficient for Timer2
Rev. 4 - March 2015
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