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The figure below shows the trigger sequence.
Figure 2.33: Sequence Trigger Flow of Condition
The following parameters should be carefully considered in defining sequence conditions
for obtaining correct trigger results:
64
When this condition occurs, the sequence trigger should see an arm condition
before the trigger.
Trigger condition: This condition is the condition that causes an analyzer trigger.
All the conditions are based on the individual signals (see Figure 2.34 on
page 65), where the values selected are AND'ed with each other to get a result.
For example, if you want to trigger on an MRS on Chip Select 1, you would set
the Command Value to "Low Low Low" and the CS1# to "Low", all other CS#'s at
"Don't Care". Alternatively if you want to trigger on any case where the RAS#
CAS# and WE# are "Low", you would leave all the CS#'s at "Don't Care".
For chip select signal, an "Any Chip Select" option is provided. This allows you
define an "or" condition on all ranks. This means that if other signal conditions
occur on any other chip select, the engine considers it as a matched condition,
regardless of the chip select. However, at least one chip select should be active
to match the condition.
Any signal can be triggered with different transitions and states as follow:
High
Low
Rising Edge
Falling Edge
Either Edge
The software provides a list of available commands in the Command drop‐down
list (see red arrow in figure below) for easy selection of signal values. However,
just selecting command value is not sufficient for defining a condition, you
should define other signals values as well.
Recording Options Setup
K ibra DDR Protocol Analyzer User Manual
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