#include <mc9s12dp512.h>
unsigned int MyCount;
void main(void)
  {
   DDRA = 0xFF;	
   PACTL = 0x50; 
   while(1)		
    { 
     PACN32 = 0xFFF4;	
     PORTB = PORTB & ~0x10;	
     while (!(PAFLG & PAFLG_PAOVF_MASK));
     PAFLG = PAFLG | PAFLG_PAOVF_MASK;
     PORTA = ++MyCount; 
     PORTB = PORTB | 0x10;	
    }
  }