Type
This column displays the access type of the current element, which can be:
Bus, bus state change
Code, code access (Fetch)
Data, data access (read or write)
DMA, Direct Memory Access (DMA) transfer operation
Exec, instruction was executed
Int, interrupt vectoring
No exec, instruction was not executed
Pin, pin state change
PreF, prefetch (so not executed)
Prob, external probe state change.
If an access type is prefixed by an R, this indicates a read access. W indicates a write access. This column is displayed only when Access Type is selected in the Trace columns menu.