//Page 481

#include <avr\io.h>		
#include <avr\interrupt.h>

ISR(ADC_vect)
{
	PORTD = ADCL;		
 	PORTB = ADCH;		
 	ADCSRA |= (1<<ADSC);
}

int main (void)
{
 	DDRB = 0xFF;		
 	DDRD = 0xFF; 		
 	DDRA = 0;		
 
 	ADCSRA = 0x8F;	
 	ADMUX = 0xC0;	
  	sei();
			
 	ADCSRA |= (1<<ADSC);


 	while (1);

 	return 0 ;
}