User guide

• For one cycle, when a read from data TCM immediately follows a write to data TCM.

• For one cycle, when a data read from instruction TCM occurs.

• For two cycles, when a data write to instruction TCM occurs.

• When external memory is accessed. In this case, the number of stalled cycles depends on:

— the write buffer draining

— the external memory system.

Caches and Tightly Coupled Memories