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Hi ,
i did't got how u r telling "different address for different slave",
but you will recognize particular slave by decoding few address bit ..else how u will recognize which slave is performing transfer ..
For more clarification see amba spec document P. 3.4
Long time since i did any work with AHB but I do remember a few things. Lets see, you need some way of deciding which slave to select right ? that's what is done by the ahb decoder , the slave is dumb and starts acting when decoder says it is for it. In your logic the slave will now have to be intelligent enough to understand if it is meant for it which goes aganist the spec you will have difficulty if you plan to integrate any 3rd party ip on to your bus. Good luck.
A central address decoder is used to provide a select signal, HSELx, for each slave on the bus.The select signal is a combinatorial decode of the high-order address signals.the decoder design is based upon the number of slaves present and not upon the master.
u can get a clear idea with amba spec freely downloadable from arm site
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