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Section 2 Emulator Functions
2.2
Trace Functions
The emulator has two trace functions.
2.2.1
Internal Trace Function
The branch source and branch destination addresses, mnemonics, operands, and source lines are
displayed. This function uses the trace buffer built into the device.
Notes: 1. The number of branch instructions that can be acquired by a trace differs according to
the product. For the number that can be specified for each product, refer to the online
help.
2. The internal trace function is not supported for all products. For details on the
specifications of each product, refer to the online help.
3. The internal trace function is extended for some products. For details on the
specifications of each product, refer to the online help.
2.2.2
AUD Trace Function
This is the large-capacity trace function that is enabled when the AUD pins are connected to the
emulator. If an event occurs to acquire a trace, trace information is output in realtime from the
AUD pins.
When a set of the branch source and branch destination instructions is one branch, the maximum
amount of information acquired by a trace is 32,767.
(1) Trace acquisition event
The following events can be acquired by the AUD trace function.
(a) Branch generation information
The branch source and branch destination addresses are acquired.
(b) Memory access information within the specified range
Memory access in the specified range can be acquired by trace.
Two memory ranges can be specified for channels A or B. The read, write, or read/write cycle
can be selected as the bus cycle for trace acquisition.
This function is called the window trace function.
Rev. 1.00 Nov. 26, 2007 Page 10 of 230
REJ10J1766-0100
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Troubleshooting
