LDS	#RAMEnd+1  
	LDAA 	#$FF		
	STAA	DDRB		
	STAA	DDRH		
	LDAA 	#$00		
	STAA	DDRA		
	LDAA	#$0		
    	STAA	SCI0BDH
	LDAA	#$0D		
    	STAA	SCI0BDL   	
    	LDAA	#0	   	
    	STAA	SCI0CR1	
    	LDAA	#$AC	
    	STAA	SCI0CR2	
	CLI			
H1	LDAA	PORTA		
	STAA	PORTB		
	BRA	H1		
SCI0_ISR BRCLR	SCI0SR1,mSCI0SR1_RDRF,EXIT	
	LDAA SCI0DRL
	STAA PTH
EXIT	RTI	
	ORG   $FFD6
	DC.W  SCI0_ISR
	ORG   $FFFE
	DC.W  Entry