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Model T940 User Manual
Publication No. 980938 Rev. K
Advanced Topics 8-42
Astronics Test Systems
Jump
LSTSEQ
RTN
SUBRT
CLOOP
Action/Comments
•
If LC>0 and CA=0 and NOT
IN_SUB, load the designated
Loop Counter, set CA=1, set the
IN_SUB flag, set the LAST flag
and jump to JSA.
•
If CA=1 and NOT LCD ,
decrement the loop counter and
jump to JSA.
•
If CA=1 and LCD reset CA if
UCO=0; also if IN_SUB, jump to
the Return Seq. and clear the
IN_SUB flag.
•
Otherwise, if LC>0, CA=0 and
INSUB, jump to the return Seq.
and clear the INSUB flag
•
Otherwise, the Seq. loops or
finishes (also set a fault flag).
T964 VXI Backplane Trigger Bus
Trigger Bus description:
TTLTRG Bus (8 VXI backplane signals): normally active low
ECLTRG Bus (2 VXI backplane signals): normally active high
Trigger Bus Applications:
•
Inter-module communications (for Sequencers configured in a Master/Slave
configuration):
o
Communicating a Trigger for a Conditional Jump
Error (with or w/o Pass Valid)
Channel Test
o
Communicating a Synchronization Signal from the Primary Sequencer
that all the coupled Synchronizers can check themselves against.
o
Communicating a Sequence Reset to all coupled sequencers: primarily
used for re-synchronizing coupled Sequencers
o
Communicating a Master Reset to all coupled sequencers
o
Communicating a Driver Disable to all coupled sequencers that can
disable all the channel drivers at once.