eric salvarez wrote:
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>I m designing a mc-control card with 80c515.this is my first experience >in design.
>I d kindly welcome your suggestions for:
>1.ROm and memory areas(width)

For simplicity in the beginning, if you are not cost conscious give it both 64K ram and ROM and keep the Harvard architecture.

>2. which prom and ram to use

Do you want ISP and NVRAM or what ?

>3.is there a suitable software emulator and simulator for 80c515
Yes, Try Hitek

>4.is there a basic PC-80C515 serial communication program.Codes for >data senchronisation

Not that I know of, write your own there are plenty of examples on this site's links.

Steve