Renesas SH-4A User Manual page 57

• PPC: Output from a performance counter
• Instruction, Source, Label: Displays the mnemonic of the instruction at the trace
acquisition address, along with the corresponding source code and label information.
Double-clicking on the [Source] column moves the cursor to the corresponding position
in the [Editor] window.
The Type, BUS, R/W, Address, and Data columns have different meanings according to the type
of trace that has been selected.
Table 1.2 [Trace Window] Display Contents
Trace Type Type Column
Branch trace BRANCH
DESTINATION
Memory- MEMORY
range access
trace
Software trace S_TRACE
System bus MEMORY
trace
*2
Data lost LOST
CPU wait CPU-WAIT
*2
generation
Notes: 1. Not displayed when the PPC option is in use.
2. According to the device being debugged, there may be no output for the [Lost] or
[CPU-WAIT] type. In such a case, it is not possible to clarify whether the trace data
was not output in time or the CPU generated a wait state for the output trace data.
(b) Function to acquire information outside the MPU by a trace
The acquired trace information is displayed in the [BUS/MFI trace] window.
External Bus Trace Function (BUS trace):
This is a large-capacity trace function that is enabled when the external bus pins of the
MPU are connected to the emulator. If an external memory is read from or written to, trace
information is output in realtime from the external bus pins.
BUS Column
*1
No display
No display
No display
No display
No display
No display
No display
R/W Column Address Column
No display Branch source
address
No display Branch destination
address
Read/write Memory access
address
No display Trace(x) function
execution address
Read/write Memory access
address
No display No display
No display No display
Data Column
No display
*1
No display
Memory
access data
Variable x
data
Memory
access data
(write only)
No display
No display
33
*1
*1