Renesas Single-Chip Microcomputer M32180T2-PTC Información técnica descargar pdf (Pagina 9)

M3T-PD32RM V.3.01 Release 00 Release Notes

5. Notes

5.1. Analysis of real time trace results

When the trace type is Branch or Mix, observe the following restriction on the result of real time

trace, depending on the setup condition or the occurred breakpoint setting.

" When tracing up to the time point when the breakpoint occurs

When the real time trace result is displayed in the bus mode, the trace data at occurrence of the

breakpoint is listed as below. The trace data at Address: FFFF9000 indicates that a break

function has occurred. It does not indicate an occurrence of branch caused by the user program.

Trace data indicating break occurrence

The trace data at Address: FFFF9000 indicates that a break

function has occurred.

For the bus mode display, Address, ST and other fields, see the PD32RM Help.

5.2. Zone time measurement error

The zone time measurement function is implemented based on the trace data output from The MCU.

To output a unit of trace data information, the MCU operation clock frequency count shown below is

required. Thus, the zone time measurement result generates a measurement error from the actual

MCU execution time.

A unit of trace data refers to the following information:

(a) Single branch information arising during program execution

(b) Single data access information

According to the trace mode setting, the trace data output from the MCU are described below:

Trace Mode Setting Trace Data Output from MCU

Branch (a) Only branch information

Data (b) Only data access information

Mix(Branch Priority) (a)Branch information and (b) Data access information

Mix(Data Priority) (b)Branch information and (b) Data access information

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Renesas Single-Chip Microcomputer M32180T2-PTC Información técnica Pagina 9