#include <mc9s12dp512.h>
unsigned int Mycount, temp;
unsigned char y,z;
void main(void)
  {
   DDRA = 0x0FF;	
   DDRH = 0x0FF;	
   DDRB = DDRB | 0x02;	
   PACTL = 0x50; 
   while(1)	
     { 
     PACN32 = 0xFFF4;	
     PORTB = PORTB & ~0x10;	
     while (!(PAFLG & PAFLG_PAOVF_MASK));
     PAFLG = PAFLG | PAFLG_PAOVF_MASK; 
     PORTB = PORTB | 0x10;	
     ++Mycount;
     temp = Mycount;
     z = temp % 10;
     temp = temp/10;
     y = temp % 10;
     PORTA = z | 0x30;
     PTH = y | 0x30; 
     }
  }