RFM31 Datasheet, PDF (136/137 Pages) –

RFM31
6. Description: Wake-up Timer and Low Duty Cycle Modes not functional.
Impacts: These features are not supported.
Workaround: Use the external microcontroller or the 32 kHz XTAL option on the RF22 to implement these
functions.
Resolution: Will be fixed in the next revision.
7. Description: If a false preamble is detected the chip will remain in the sync detection state indefinitely or until a
valid sync word is detected.
Impacts: RX link performance and batter life.
Workaround: Extend the preamble detection threshold to prevent false preamble detection or implement a
software work around and perform the sync timeout on the microcontroller.
Resolution: Will be fixed in the next revision.
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