Mitsubishi Q2ACPU User Manual page 142

8. DEBUGGING FUNCTION
• With trace suspension
The following shows an operation at error occurrence.
When an error occurs during program trace, SM828 (program trace error) comes ON,
and at the same time, SM811 (program trace start) goes OFF.
To turn SM828 OFF, either turn SM811 ON, or execute the PTRA instruction.
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