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SI4438 Datasheet, PDF (31/44 Pages) Silicon Laboratories – Low active power consumption | |||
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Si4438
The fields are highly programmable and can be used to check any kind of pattern in a packet structure. The
general functions of the packet handler include the following:
ï®ï Detection/validation of Preamble quality in RX mode (PREAMBLE_VALID signal)
ï®ï Detection of Sync word in RX mode (SYNC_OK signal)
ï®ï Detection of valid packets in RX mode (PKT_VALID signal)
ï®ï Detection of CRC errors in RX mode (CRC_ERR signal)
ï®ï Data de-whitening and/or Manchester decoding (if enabled) in RX mode
ï®ï Match/Header checking in RX mode
ï®ï Storage of Data Field bytes into FIFO memory in RX mode
ï®ï Construction of Preamble field in TX mode
ï®ï Construction of Sync field in TX mode
ï®ï Construction of Data Field from FIFO memory in TX mode
ï®ï Construction of CRC field (if enabled) in TX mode
ï®ï Data whitening and/or Manchester encoding (if enabled) in TX mode
For details on how to configure the packet handler, see âAN626: Packet Handler Operation for Si4438 RFICsâ.
Rev 1.0
31
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