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R0E530640MCU00 User’s Manual 5. Debugging Functions
REJ10J1733-0100 Rev.1.00 Apr. 01, 2008
Page 146 of 229
5.10.5 Clearing Performance Measurement Conditions
Select the measurement condition you want to clear in the Performance Analysis window and then choose Set from the context
menu to display the Performance Analysis Conditions dialog box. In the Performance Analysis Conditions dialog box, disable
the condition you want to clear.
Figure 5.71 Performance Analysis Conditions dialog box
5.10.6 Clearing the Performance Measurement Result
Select the section you want to clear in the Performance Analysis window and then choose Clear Data from the context menu.
The measurement result of the selected section will be cleared. To clear all measurement results, choose Clear All Data from
the context menu.
5.10.7 About the Maximum Measurement Time of Performance
(1) Maximum measurement time
The timer used for performance measurement is comprised of a 40-bit counter.
The maximum measurement time varies with the unit of measurement selected.
To select the unit of measurement, use the Measurement Unit list box of the Performance Analysis Conditions dialog box.
The measurable maximum times are listed in the table below.
Table 5.26 Measurable maximum time
No. Resolution Measurable maximum time
1 10ns Approx. 3 hours, 03 minutes, 15 seconds
2 20ns Approx. 6 hours, 06 minutes, 30 seconds
3 40ns Approx. 12 hours, 13 minutes, 00 seconds
4 80ns Approx. 24 hours, 26 minutes, 00 seconds
5 160ns Approx. 48 hours, 52 minutes, 01 seconds
6 1.6μs Approx. 488 hours, 40 minutes, 18 seconds
CAUTION
Note that performance measurement produces an error equal to ±1 resolution (when resolution = 20 ns, ±20 ns).
(2) Maximum measurement count
Execution counts are measured using a 32-bit counter. Measurement can be taken of up to a count of 4,294,967,295.