SBUF1 EQU 0C1H	
		SCON1 EQU 0C0H	
		RI1 BIT 0C0H	
		ORG 0H 		
		MOV TMOD,#20H	
		MOV TH1,#-6  	
		MOV SCON1,#50H	
		SETB TR1		
HERE:		JNB RI1,HERE	
		MOV A,SBUF1	
		MOV P1,A		
		CLR RI1
		SJMP HERE
		END