In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:

Ok, for those that don't know, I am building a homebrew computer.

My design is probably going to use a 6502 for the CPU and several SX28 (and maybe even some PICs) for the subsystems like audio, I/O, etc.

Anyway, I am working on my "sound card" now.

I would like my sound card to have it's own 32k of RAM and at least 4-8 bit resolution.

So....

If I use a parallel connection to the SRAM and use the 15 pins for the address bus, 2 pins for /OE and /WE that leaves me with only 3 pins.  No where near enough for the 8 bit data bus PLUS the number of pins for my audio out.  

What should I do?  Should I try using a serial connection?  Isn't that much more complicated and slower?

Should I ditch the SX28?  I know some of the PIC "monsters" can get up to 40 pins (I have some) but I like the speed and power of the SX.
I don't think the SX52 would work unless I get the "con carne" version because I want DIP.

Thanks for any suggestions.

-cbmeeks

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