Teledyne LeCroy Serial Data Debug Solutions - Manual (Page 107)

Operator's Manual
919586 RevA 107
MIL-STD-1553 Trigger Setup Detail
The following topics show the main and right hand dialog selections for a MIL-STD-1553 Trigger.
MIL1553 T RIGGER M AIN D IALOG D ETAIL
A few points about different MIL-STD-1553 trigger setup combinations:

All trigger setups use Source Setup... and Type fields.

All Types except for Error use Sub-Type (label 3, in the screen-shot) fields.

Only the Word Type uses the Setup Format (label 4, in the screen-shot) fields.

All Types except for Transfer have right-hand dialogs (label 5, in the screen-shot).
Note: Dialog fields vary based on your selections and are explained in respective sections as follows.
Previously numbered MIL 1553 trigger main dialog sections correspond with the following explanations.
1. S OURCE S ETUP

DATA - The pop-up dialog is used to select the appropriate channel or EXT input for each. Set this field up
with caution or your trigger may not function correctly.

Threshold (Trigger)High and Low - Adjust the vertical level thresholds for the trigger. MIL 1553 is a tri-
level signal and requires 2 voltage threshold settings which enable the oscilloscope to distinguish
between 1 and 0.
Like an Edge trigger, the level must be specified to process the incoming signals and determine if the
desired serial data pattern meets the set trigger condition.
2. T YPE
Type selections include Transfer, Word, Error, and Timing.
Note: Additional fields shown on the dialog (including right-hand dialogs) vary and are based on the Type
selection.
3. S UB -T YPE
All Types (except for Error) have Sub-Types (label 3, in the screen-shot). Transfer and Word sub-types present
additional sections on the main dialog. Transfer, Word, and Timing sub-types show several right-hand dialogs.
These sections and right-hand dialogs are explained in the rest of the MIL-STD-1553 topics of this manual.