"IORD_8DIRECT" reads 32 Bit ?

well this is a combination of a bug and a feature :-)

and this has been discussed since discovered but the only workaround i found so far is to monitor the byteenables they tell you what byte of the 32 bit is realy needed and if there is an access to such an unwanted byte to surpress the execution.

yes this i a very big disapointing thing with external devices that do something if they recognize a read access.

This is very hard to find for softwareguys if a status bit is changed and you think you haven't read from that address

to be honest, i haven't look at it with signaltap and quartus 9.1 if this bug/feature is still present.