SX1231 SEMTECH [Semtech Corporation], SX1231 Datasheet - Page 38

• Manufacturer Part Number: SX1231
• Description: Low Power Integrated UHF Transceiver
• Manufacturer: SEMTECH [Semtech Corporation]

Notes - the accuracy of the typical timings given in Table 15 will depend in the RC oscillator calibration
The criteria taken for detecting a wanted signal and hence deciding to maintain the receiver on is defined by ListenCriteria
in RegListen1.
Table 16 Signal Acceptance Criteria in Listen Mode
The action taken after detection of a packet, is defined by ListenEnd in RegListen3, as described in the table below.
Table 17 End of Listen Cycle Actions
Rev 2 - Nov 2009
ADVANCED COMMUNICATIONS & SENSING
- RC oscillator calibration is required, and must be performed at power up. See section 7.3 for details
- the default ListenResol setting 1001 is reserved
ListenEnd
00
01
10
mode defined by Mode. Listen mode stops and must be disabled.
resumes in Idle state. FIFO content is lost at next Rx wakeup.
Chip stays in Rx mode. Listen mode stops and must be disabled.
Chip stays in Rx mode until PayloadReady or Timeout interrupt occurs. It then goes to the
Chip stays in Rx mode until PayloadReady or Timeout interrupt occurs. Listen mode then
ListenCriteria
0
1
Input Signal Power
>= RssiThreshold
Required
Required
Page 38
Description
SyncAddressMatch
Not Required
Required
DATASHEET
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SX1231