🚀 go-pugleaf

stettbac@isibee5 (Juerg Stettbacher) writes:


>Hello world

>The DSP56001 has 3 memory spaces (X, Y and P).
>X and Y are data memory spaces. Their sizes depend on
>the particular application. P holds the program.

>Question: What's a reasonable size for program memory P.
>(Common DSP applications with  monitor for stand alone.
>Software development in C and assembler).

>Any suggestions?


>Thanks
>juerg at ethz switzerland

The program size will also depend on your application.
I would suggest 8K x 24 as a minimum size for program memory.
8K x 8 chips are common and not too expensive. 3 parts will give you
the 8K x 24 program memory.
I also believe Motorola makes a 8K x 24 part.

If your application will be large you could go to 32K x 24 by using
three 32K x 8 parts. This is somewhat more expensive, but still not
too bad.

It is also possible to use the same parts for X, Y and P memory.
You need a fast address decoder to do this, but it saves on memory
chips.


-- 
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Robert Wiegand - Motorola Inc.
uunet!motcid!wiegand
Disclamer: I didn't do it - I was somewhere else at the time.