Aim MIL-STD-1553 - Page 138

MIL-STD-1553 Reference Manual
124
Chapter 3 – System Functions
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Value
Description
1..16
Number of bits used for defining the Track Multiplex Buffer Index in the Track's
first word (defined by 'ul_TrackStartPos')
Note: The number of bits selected
(ul_TrackBLen) controls the range
of (ul_MultiplexedTrackNb) (as
shown in the table at right.)
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Value
Description
1..32
Size of the track in words
(starting from the word
specified in parameter
ul_TrackStartPos)
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6
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Value
Description
0
Memory is allocated for a
multiplex state when it is
received
2..65536
Number of multiplexed tracks
in the Track Multiplex Buffer
(See Table at right for
maximum range) for which
memory is already allocated
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Value
Description
1..32
Number of continuous tracks in the Data buffer. This number defines the number of
times the track is repeated in the Data buffer.
Note: ul_ContinousTrackNb X ul_TrackLen ≤ 32
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Value
Description
-31..+31
Negative or positive offset in words relative to the calculation start position of the
track defined with parameter ‘ul_TrackStartPos’
With this offset the start position of the data to be copied can be set, so the mux
word of the track may be outside of these data words.
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R
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Track definition output structure
typedef struct ty_api_track_def_out
{
AiUInt32 ul_TrackBufferStartAddr;
} TY_API_TRACK_DEF_OUT;
Range of Number of Multiplexed Tracks
ul_TrackBLen
ul_MultiplexedTrackNb
( maximum range)
1
2
2
4
3
8
4
16
..
..
16
65536