Datum Systems PSM-500L Manual do Utilizador descarregar pdf (Página 36)

Datum Systems, Inc. PSM-500 Modem Remote Control Protocol

Rev 0.93 12/12/10

B-36

Demod Status, Command [80h]

Read Change Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 0

CXR

Eb/No

Offset

Level

EstBER

SER

Buffer

Test

Byte 1

Spare

Byte 2

Spare

Byte 3

Spare

Demod Status, Read Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 4

DemLck

EbAlm

LvlAlm

AgcAlm

LoAlm

StpAlm

SysAlm

RefAlm

Byte 5

BufValid

BufSlip

Sign

NrwHld

DataAlm

BckAlm

IfLoop

FixCxr

Byte 6

LnbAlm

IfLpSyn

Alm

Spare

Byte 7

Spare

Demod Status, Read Bytes

Bytes 8-9

Rcv Eb/No, 16b, (20 to 200), 0.1dB Increments

Bytes 10-13

Rcv Offset, Signed 32b, (-1,250,000 to +1,250,000), 1Hz Increments

Bytes 14-15

Rcv Cxr Level, Signed 16b, (<-84 to 0), 1dB Increments (dBm)

Bytes 16-17

Est. BER, 16b, Bits [15-12]=Negative Exponent, Bits [11-0]=Mantissa (1-9, >9=<1)

Bytes 18-19

SER, 16b, Bits [15-12]=Negative Exponent, Bits [11-0]=Mantissa (100=1.00)

Bytes 20-21

Buffer, 16b, (0 to 200), 1% Increments

Bytes 22-27

Spare

Demod Status, Write Enable Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 0

CxrLck

SwpStrt

EstBER

SER

Buffer

Byte 1

Byte 2

Byte 3

Demod Status, Write Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 4

AbortLck

Byte 5

CtrBuf

Byte 6

Spare

Byte 7

Spare

Demod Status, Write Bytes

Bytes 8-11

Bytes 12-13

Sweep Start Frequency, Signed 32b, (-1,250,000 to +1,250,000), 1Hz Increments

Bytes 14-15

Bytes 16-17

x, Write Restarts SER/Est. BER

Bytes 18-19

x, Write Restarts SER/Est. BER

Bytes 20-21

x, Write Clears Slip Flag

Bytes 22-27

Spare

[AbortLck] = Demod Abort Current Lock, 1b, 0=No Change, 1=Abort Lock

[CtrBuf] = Demod Recenter Buffer, 1b, 0=Clear Slip Flag Only, 1=Clear Slip Flag & Recenter Buffer

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 56 57

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