Teledyne LeCroy TA700_800_850 User Manual - Manual (Page 120)

Catalyst Enterprises, Inc. Performance Analysis
106
Per Event Tab To count bus cycles such as memory and I/O
operations at two or more addresses that are
specified in the event tab, e.g. I/O operation of
two different agents.
UPDATE INTERVAL
Set the update rate between 500 us and 10 minutes by positioning the Update Interval
slider with the mouse cursor.
ANALYSIS WINDOW SETTINGS
Percent Ratio Select Based on The Greatest to display results
relative to the largest value or Based on Clock,
to display an absolute measurement of all values.
Select *1, *10, *20, *50 or *100 to zoom the
display scale from 100% full scale to 1% full
scale.
Reset/Accumulate With Reset selected, the measurement counters
are reset at the beginning of each interval. With
Accumulative selected, the measurement
counters will continue to add up.
Chart Mode Choose Only Update Period to display the
default number of period only and choose
Periods and specify number updated periods
desired to see on the display.
Show Expression Chose Report Mode and or Chart Mode to see
the result of the equation in both report format as
well as graphical.
Defining Event Patterns
1. Click the Event Patterns Tab.
2. Define the Event Patterns as described in Creating an Event Pattern on page 68.
Writing And Editing Analysis Equations
Analysis equations are needed for generating the results of the measurement on the
Reports window. They are entered in simple algebraic format observing standard
algebraic conventions for operations using EV1 to EV8 (or their corresponding name)
as the variables, Clock is the number of system clock cycles specified in the update
interval of the project, e.g. in a 66MHz system and an update interval of 10ms clock
would equal to 660000. Freq is the system frequency expressed in millions, e.g in a
66MHz system Freq would be 66. The “Description” line is used to enter the report
title.
1. Click the Equation Tab to open the Equation Editor dialog box as shown in
Figure 98