SOPC create 8bit ext tristate memory

Here is some tips for you: ( in Quartus 5.0 , spoc 5.0 , component edit)

1.

if the external device is not "momery", please using "slave addressing=Registers(using native bus sizing)

it write/read one by one ,not 4*8bytes.

2.

if using tristate bridge , choose "avalon tristate slave"

3.

then add signals properly

4.

it is default that address and data bus is shared if it is "avalon tristate slave". you can modify the ptf to share others signals what as you have done. (but I never tested it, it can also shared in quartus by gethering the signals by AND gate)