Renesas SuperH Family E10A-USB - Manual (Page 55)

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Each measurement condition is also counted when conditions in table 2.14 are generated.
Table 2.14 Performance Measurement Conditions to be Counted
Measurement Condition Notes
No caching due to the
settings of TLB cacheable
bit Counted for accessing the cacheable area.
Cache-on counting Accessing the non-cacheable area is counted less than the actual
number of cycles and counts. Accessing the cacheable, X/Y-RAM,
and U-RAM areas is counted more than the actual number of cycles
and counts.
Branch count The counter value is incremented by 2. This means that two cycles
are valid for one branch.
Notes: 1. In the non-realtime trace mode of the AUD trace and memory output trace, normal
counting cannot be performed because the generation state of the stall or the execution
cycle is changed.
2. Since the clock source of the counter is the CPU clock, counting also stops when the
clock halts in the sleep mode.
(d) Extension setting of the performance-result storing counter
The 32-bit counter stores the result of performance, and two counters can be used as a 64-bit
counter.
To set a 64-bit counter, check the [Enable] check box in the [Extend counter] group box of the
[Performance Analysis] dialog box for Ch1 and Ch3.
2. Displaying the result of performance
The result of performance is displayed in the [Performance Analysis] window or the
PERFORMANCE_ANALYSIS command in hexadecimal (32 bits).
However, when the extension counter is enabled, it is displayed in hexadecimal (64 bits).
Note: If a performance counter overflows as a result of measurement, “********” will be
displayed.
3. Initializing the measured result
To initialize the measured result, select [Initialize] from the popup menu in the [Performance
Analysis] window or specify INIT with the PERFORMANCE_ANALYSIS command.