>Does any one know of a static ram chip that can be hooked up
>to the PSP port on the 18F for high speed data access.
>
>Its an 8 bit port so Im looking for a multiplexed IO memory.

Well I guess something like the Intel 8255/6 is what your expecting, but I
think you have a problem. I have not used this port in this manner, so am
going from memory of a quick scan of the datasheet.

I think your problem is that the PSP port is set up to be a slave port to
another processor. You are wanting to use it as a master port to drive some
other slave, so will need to drive the rd/wr/cs lines yourself in code, and
not set the port up as a PSP. Second you will need to provide a separate ALE
line, again driven separately in your code.

Hmm, checking before I send, I see your talking of an 18F series, and I have
not looked at this, only the 16F87x series. Not sure if the 18F is further
enhanced.

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