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Using the Pattern Generator
Building Test Vectors and Functions
INIT and MAIN Sequences
Use the knob to highlight individual lines in either vector sequences.
When a line is highlighted, you can add data lines below it by selecting
the Insert field. Selecting the INST field brings up a dialog box that lets
you insert one of the instructions or user macros into the vector
sequence.
An instruction is not allowed on the following vector lines of the
sequence:
•The first vector of the INIT sequence.
•The first vector of the MAIN sequence.
•The last vector of the MAIN sequence.
•The vector prior to the IF block.
•The first vector of the IF block.
•The last vector of the IF block.
•The vector following the IF block.
It should be noted that with the Vector Output Mode of Half Channel
200 Mbit/s, the INIT sequence must contain a number of vectors that is
divisible by four. If this is not the case, the first vector of the INIT
sequence is duplicated to create the correct number of vectors.
With the Vector Output Mode of Full Channel 100 Mbit/s and vector
frequencies greater than 50 MHz, the INIT sequence must contain an
even number of vectors. Again, if this is not the case, the first vector of
the INIT sequence is duplicated to create the correct number of
vectors.