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RFM219SW Datasheet(PDF) 14 Page - HOPE Microelectronics CO., Ltd. |
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RFM219SW Datasheet(HTML) 14 Page - HOPE Microelectronics CO., Ltd. |
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14 / 35 page  RFM219SW www.hoperf.com Rev 1.0 | Page 14/35 E-mail:sales@hoperf.com Category Parameters Descriptions Default Mode Falling Relative TH This is the relative threshold to shut down the (G)FSK demodulation. It is measured in terms of RSSI code. The range is from 0 to 255. 255 Advanced AFC Turn on/off the Automatic Frequency Control function. The options are: On or Off. On Advanced Decode Settings Data Mode The data acquisition mode, the options are: Direct, Buffer or Packet. Packet Basic Advanced Packet Type The device can support two packet types. The options are: Fixed length or Variable length. Fixed Length Basic Advanced FIFO Threshold This defines the FIFO threshold that once it is reached, an interrupt is generated to notify the external MCU. The range is from 1 to 32, in terms of the FIFO address. 32 Basic Advanced De-Whitening Seed This parameter is only available when DC-Free Data Decode is not set to “None”. The initial seed for the data de-whitening polynomial. The range is from 0 to 255. NA Basic Advanced DC-Free Decode The options of DC-free data decoding are None, Manchester 1 (01=one, 10=zero), Manchester 2 (10= one, 01=zero), or Data De-whitening. None Basic Advanced Preamble The size of the valid preamble, the options are: None, 1-byte, 2-byte, 3-byte, or 4-byte. 2-byte Basic Advanced Sync Size The size of the Sync Word, the options are: None, 1-byte, 2-byte, 3-byte, or 4-byte. This option cannot be set to “None” in buffer mode. 3-byte Basic Advanced Sync Value This parameter is only available when Sync Size is not set to “None”. It defines the value of the Sync Word, the range is from 0 to 2 N-1, where N is determined by Sync Size. For example, if Sync Size is 1-byte, N is 8; if Sync Size is 2-byte, N is 16, etc. 0 Basic Advanced Sync Tolerance The number of bits tolerated for the Sync Word recognition. The options are: None, 1 Error, 2 Errors or 3 Errors. None Basic Advanced Node ID Options The options for the Node ID detection are: None, Detect Node ID, Detect Node ID and 0x00, or Detect Node ID, 0x00 and 0xFF None Basic Advanced Node ID Value This parameter is only available when the Node ID Options is not set to “None”. It defines the value of the Node ID. The range is from 0 to 255. NA Basic Advanced Data Length This defines the number of bytes of data in a fixed length packet. The range is from 0 to 32. 32 Basic Advanced CRC Options The options for the CRC are: None, CCITT or IBM. None Basic Advanced CRC Seed This parameter is only available when CRC Options is not set to “None”. It defines the initial seed for the CRC polynomial. The range is from 0 to 65535. NA Basic Advanced |
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