EPXA4 Datasheet, PDF (26/34 Pages) Altera Corporation – Excalibur Devices

Errata Sheet - Appendix A
A.2.8
Extra instruction traced prior to debug entry—Category 3
Description
An instruction selected as a breakpoint may be traced prior to debug
entry, even though it was not executed. It is flagged as having failed its
condition codes, regardless of whether it is conditional.
Conditions
This has been observed in devices based on the ARM9TDMI (for example
the ARM9TDMI, ARM920T, and ARM922T cores) only. It has not been
observed in devices based on the ARM9E (for example the ARM9E-S,
ARM966E-S, and ARM946E-S cores).
Implications
It will appear to the user that the breakpoint occurred at the wrong time.
Workaround
No workaround is known.
Implications of workaround
No implications.
Correction
No correction is planned.
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