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AMBA AHB Lite addressable space for byte size transfer

Hi,

It looks like when using a transfer size of one Byte, the position of this data on the 32-Bit bus must be set via ADDRESS[1:0]. This means that for a Byte transfer, the addressable space is reduced, from 4GB (2^32) to 2^(30) = 1GB. Is this correct ?

Thanks

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Colin Campbell over 5 years ago in reply to DonVerilog +1

I think what you are now describing is correct. The AHB-lite protocol is a byte addressable protocol, so with HADDR at 32-bits this supports 4G of addressable bytes. If your target slave only has 32...

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0 DonVerilog over 5 years ago in reply to Colin Campbell

Thanks Colin for the reply, much appreciated
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0 DonVerilog over 5 years ago in reply to Colin Campbell

Thanks Colin for the reply, much appreciated
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