Datum Systems PSM-500L Manual de usuario Pagina 29

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Datum Systems, Inc. PSM-500 Modem Remote Control Protocol
Rev 0.93 12/12/10
B-29
Mod Data, Command [42h]
Read Change Flags
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Byte 0
BitRate
Mod
FecType
FecOpt
CodeRate
RsMode
RsN
RsK
Byte 1
RsDepth
DiffEnc
Scrmbler
ClkSrc
Spare
Spare
Spare
Spare
Byte 2
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Byte 3
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Mod Data, Read Flags
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Byte 4
Mod0
Mod1
Mod2
Mod3
RsMode0
RsMode1
RsMode2
RsMode3
Byte 5
RsDepth0
RsDepth1
DiffEnc0
DifEnc1
Scrm0
Scrm1
Scrm2
Scrm3
Byte 6
ClkSrc0
ClkSrc1
ClkSrc2
ClkSrc3
Spare
Spare
Spare
Spare
Byte 7
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Mod Data, Read Bytes
Bytes 8-11
Bit Rate, 32b, (600 to 20,000,000), 1bps Increments (Depends on Mode)
Byte 12
Fec Type, 8b, 0=None, 1=Viterbi, 2=TCM, 4=TPC, See Table A
Byte 13
Bytes 14-15
Fec Option, 16b, See Table A
Bytes 16-17
Fec Code Rate, 16b, See Table A
Byte 18
Reed-Solomon N Factor (22 to 255, N-K=2 to 20)
Byte 19
Reed-Solomon K Factor (20 to 253, N-K=2 to 20)
Bytes 20-31
Spare
Mod Data, Write Enable Flags
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Byte 0
BitRate
Mod
FecType
FecOpt
CodeRate
RsMode
RsN
RsK
Byte 1
RsDepth
0
Scrmbler
ClkSrc
0
0
0
0
Byte 2
0
0
0
0
0
0
0
0
Byte 3
0
0
0
0
0
0
0
0
Mod Data, Write Flags
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Byte 4
Mod0
Mod1
Mod2
Mod3
RsMode0
RsMode1
RsMode2
RsMode3
Byte 5
RsDepth0
RsDepth1
x
x
Scrm0
Scrm1
Scrm2
Scrm3
Byte 6
ClkSrc0
ClkSrc1
ClkSrc2
ClkSrc3
Spare
Spare
Spare
Spare
Byte 7
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Mod Data, Write Bytes
Bytes 8-11
Bit Rate, 32b, (600 to 20,000,000), 1bps Increments (Depends on Mode)
Byte 12
Fec Type, 8b, 0=None, 1=Viterbi, 2=TCM, 4=TPC, See Table A
Byte 13
x
Bytes 14-15
Fec Option, 16b, See Table A
Bytes 16-17
Fec Code Rate, 16b, See Table A
Byte 18
Reed-Solomon N Factor (22 to 255, N-K=2 to 20)
Byte 19
Reed-Solomon K Factor (20 to 253, N-K=2 to 20)
Bytes 20-31
Spare
[Mod3-Mod0] = Mod Modulation Mode, 4b, 0=BPSK, 1=QPSK, 2=OQPSK, 3=8PSK, 4=8QAM,
6=16QAM
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