Mansoor Mahfoud

S12XHZ: Pierce Oscillator Select (PE7/XCLKS)

Discussion created by Mansoor Mahfoud on Dec 11, 2007
Latest reply on Dec 13, 2007 by Mansoor Mahfoud
Hello all,
 
In 9S12XHZ MCUs (as well as other S12 and S12X MCUs), the pin PE7/XCLKS is used to select whether a Loop Contrlled or Full Swing Pierce oscillator is being used (PE = 0 --> Loop controled / PE = 1 --> full swing). Just would like to verify, can I use PE7 as an I/O after the MCU bootup and the oscillator start?
 
Thanks in advance for any help.

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