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LLCC68 Datasheet(PDF) 70 Page - Semtech Corporation

Part # LLCC68
Description  Long Range, Low Power, sub-GHz RF Transceiver
PDF  111 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

LLCC68 Datasheet(HTML) 70 Page - Semtech Corporation

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LLCC68
Data Sheet
Rev. 1.1
DS.LLCC68.W.APP
Dec 2024
70 of 111
Semtech
LLCC68
www.semtech.com
13.1.6 StopTimerOnPreamble
The command StopTimerOnPreamble(...) allows the user to select if the timer is stopped upon preamble detection of
Sync Word / header detection.
The enable byte definition is given in the following table.
By default, the timer is stopped only when the Sync Word (in GFSK) or Header (in LoRa) has been detected. When the function
StopTimerOnPreamble(...)
is used with the value enable at 0x01, then the timer stops upon preamble detection and the device stays
in RX mode until a packet is received. It is important to notice that stopping the timer upon preamble may cause the device to stay in Rx for
an unexpected long period of time in case of false detection.
Figure 13-1: Stopping Timer on Preamble or Header Detection
Table 13-10: StopTimerOnPreamble SPI Transaction
Byte
0
1
Data from host
Opcode = 0x9F
StopOnPreambleParam
Table 13-11: StopOnPreambleParam Definition
StopOnPreambleParam
Value
Description
disable
0x00
Timer is stopped upon Sync Word or Header detection
enable
0x01
Timer is stopped upon preamble detection
time
Radio Current
timeout
Radio in RX mode
Radio in STDBY_RC
Radio in STDBY_RC
Preamble Detected
Or
SyncWord / Header Detected
Radio in RX mode



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