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Development Tools User’s Manual
IXP2400/IXP2800 Network Processors
Developer Workbench
Displayed at the cycle when the unit signals the thread that the reference
is completed. For DRAM references, there are two signals. If they occur
simultaneously, the arrow is filled grey.
Shown from the reference line to the thread’s history line at the cycle
when the thread consumes the signal.
Displaying References:
Whether or not references are displayed on a particular thread’s history line is controlled via
shortcut menus in the
History
window or via the customize property sheet.
To display references for a thread:
1. Right-click the thread name or its history line.
2. Click
Display References
for ‘threadname’ on the shortcut menu, where ‘threadname’ is the
name of the thread you clicked on.
The user controls the display of reference history by clicking the
Customize
button in the
History
window then clicking the
Thread Display
tab. The property page shown in
Display of all references is enabled or disabled by checking or unchecking the
Enable display of
references
button. If this button is checked, then references for individual Microengines or threads
can be displayed or hidden using the check boxes in the fourth column of the list box.
To hide all references for a Microengine, the user unchecks the box corresponding to that
Microengine, as was done for Microengine 0:2 in
To display all references for a Microengine, the user checks the box corresponding to that
Microengine, as was done for Microengine 0:1 in
To hide references for a thread, the user unchecks the box corresponding to that thread, as was done
for Thread 2 in
. To display references for a thread, the user checks the box corresponding
to that thread, as was done for Thread 0 in
. If some threads in a Microengine have
references displayed and others don’t, then the box for the Microengine is displayed as checked but
grayed.
Checking or unchecking a Microengine’s box also checks or unchecks the boxes for all thread in
that Microengine.
Hiding or displaying references for a thread can also be done directly within the
History
window.
If a thread’s references are hidden, the user displays them by right-clicking on the thread’s history
line and selecting
Display References for Threadn
. If a thread’s references are displayed, the user
hides them by right clicking on the thread’s history line and selecting
Hide References for
Threadn
.