Missing STH Instruction

Thanks for the reply.

In fact, the word access doesn't cause any problem as it seems. But isn't youre statement conflicting with the Interface Spec. in the Avalon Datasheet on page 3-16( http://www.altera.com/literature/manual/mnl_avalon_spec.pdf )?

"If the master is wider than the slave, data bytes in the master address space map to multiple locations in the slave address space. For example, when a 32-bit master port performs a full 32-bit read transfer from a 16-bit slave port, the interconnect executes two read transfers on the slave side on consecutive addresses,..."