[
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    "N":114,"start":0,"end":57,
    "trk":TRK_RECV,"xorval":0x00001407,
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    },
    "r_high":{
      "bits":25,"v":0x010010B5,"railstatus":"stop received","n":2,
      "b_short":{"inf":450,"mid":1200,"sup":1816},
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      "b_sep":{"inf":3280,"mid":5248,"sup":65535}
    }
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  {
    "N":114,"start":0,"end":111,
    "trk":TRK_RECV,"xorval":0x00001407,
    "r_low":{
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    },
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]