Hello Every Body,

I am planning to redesign a complet new system which is using controllers as ST10, AT90S8535, AT89C52.
(The current predeveloped design needs to have many modifications which ends up having entire hardware change)


Can any body forward me some links or some ideas for designing a ideal hardware. Means data about the requirment of pullups & their placement, serial bus protection circuits, data protection circuits etc.


Regards,
sachin