Re: TI-H: *What is the clock speed of the 89?


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Re: TI-H: *What is the clock speed of the 89?




cut from http://m101.ryd.student.liu.se/J89hw.txt :

Oscillators
-----------
OSC1 speed (CPU and bus devices):
  HW1: ~10MHz (the exact figures? anyone?)
  HW2: ~12MHz (seems correct from 2.03 self test)

OSC2 speed (LCD, timers and link):
  HW1: ~769.7kHz
    (6000[int/APD]/315.3[s/APD]*79[increase/int]*2^9[cycle/increase] =
769.7k[cycle/s])
  HW2: ~521.6kHz
    (6000[int/APD]/465.3[s/APD]*79[increase/int]*2^9[cycle/increase] =
521.6k[cycle/s])


//Olle



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