Must a read after a write to the same
address return the newly written data?
Scenario
When there is an AHB write followed by
a read from the same address, should the read return the old or the new data
when the read address phase is in same cycle of the write data phase?
Answer
The answer to this question is
dependent on the design of the slave.
A simple slave will not be buffering
any data, so the returned read data will be the latest. A more complex slave
could implement buffering for write data (if allowed by HPROT[2]) and so it
could...
