ARINC 708 Display Data Bus Word Format
M4K708 Module:User’s Manual
page A - 1
Appendix A
ARINC 708 Display Data Bus Word Format
Appendix A-1
ARINC 708 Word Format
Note:
The lowest order bit is referred to as bit 8 for the
Label
field while for the other
fields it is referred to as bit 9.
Bit #1
• • • • • • • • • • • • • • • • • • • • •
Bit
#1600
• • • • • • • • • • • • • • • • • • • • • • • • •
3
μ
sec
Begining of Word
Sync
1600
μ
sec
1600 Word bits
Manchester coded
3
μ
sec
End of Word
Sync
Figure A-1
ARINC 708 Waveform Pattern
MSB • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • LSB LSB • • • MSB
Word Fields
1600
65
64
63
52
51
50
49
11
10
9
8
1
Data
Data
Accept
Control
Control
Accept
Label
Figure A-2
ARINC 708 Word Fields
Bits
Data Display
Function details
page
01– 08
Label
055 (octal)
09 – 10
Control Accept
see
Table A-2 Control Accept Functions
A-2
11
Slave
0 = Master (Normal)
1 = Slave
12 – 13
Spare
14 – 18
Mode Annunciation
see
Table A-3 Mode Annunciation
A-2
19 – 25
Faults
see
Table A-5 Faults
A-3
26
Stabilization
0 = Stabilization OFF
1 = Stabilization ON
27 – 29
Mode
see
Table A-6 Operating mode
A-3
30 – 36
Tilt
see
Table A-7 Tilt data
A-4
37 – 42
Gain
see
Table A-8 Gain data
A-4
43 – 48
Range
see
Table A-9 Range Data
A-4
49
Spare
50 – 51
Data Accept
see
Table A-10 Data accept
A-5
52 – 63
Scan Angle
see
Table A-11 Scan angle
A-5
64
Spare
65 – 67
Bin 1
•
•
•
•
•
•
see
Table A-12 Weather Condition / Reflectivity Data
A-5
1598 – 1600
Bin 512
Table A-1
Display Data Bus Word Format
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