hi all, i am using an AT89c55wd uC which has an on chip oscillator according to the datasheet, what id like to know is, is there a default freq. that its auto. set up at...i have a 12MHz crystal and i want to run at this freq. do i need the crystal or can i set up the chip for this without the crystal....ha i know its xmas mornin but these things run through my head all day everyday...merry crimbo to all!!!