sys clock for N79E844awg

Discussion in 'The Projects Forum' started by Dimpi, Oct 4, 2013.

  1. Dimpi

    Thread Starter Member

    Sep 6, 2013
    IN the datasheet of N79E844AWG 8 Bit microcontroller ,it is mentioned that it provides 3 options for the sys clock source.
    1)configured by FOSC(CONFIG3.1).
    2)switches the sys clock from crystal,on chip RC oscillator or external clock from XTAL1 pin.

    so which 1 is better to use??
    seeing from cost perspective,to use FOSC is better.??