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originally posted by match@Aug 28 2005, 01:14 AM
in my project, tristate port has been shared by sram, flash, sdram and lcd. there is no pin expanded from the same tristate port, so i can't use tristate port as an interface to my dm9000 board. --- Quote End ---
Can you elaborate on this? I don't know what you mean by "no pin expanded".
I found a Davicom data sheet that makes it look a lot like the LAN91C111 chip. It's got an interesting address bus; apparently, it decodes the address itself. It looks like interfacing would be very similar to the LAN91C111 interface, where you give it its own 10-bit address space.
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originally posted by match@Aug 28 2005, 01:14 AM
is it possible that add another tristate slave port in my system? --- Quote End ---
Yes. Look under "Bridges" in SOPC builder for "Avalon Tristate Bridge".
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