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You create a single bus. One avalon interface to your slave component and use both the writedata and readdata ports.
Option 1.
Jake
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Hi,
Well you can say that if you view writedata as 0.5 bus and readdata as the other 0.5bus = one bus. It is a point of view anyway.
I will go with you all for option (1) and will add this:
if you choose inout, nios will ask for an avalon bridge and this adds the issue of byte mode addressing(according to my old nios, unless altera have changed that).
bidirectional bus best suits external connections as it lessens the PCB tracks by half(this is significant, in general board designers love to go even serial single bit when possible e.g. serdes).
kaz
Honored Contributor
