ALE	BIT P2.4
	OE	BIT P2.5
	SC	BIT P2.6
	EOC	BIT P2.7
	ADDR_A	BIT P2.0
	ADDR_B	BIT P2.1
	ADDR_C	BIT P2.2
	MYDATA	EQU P1
	ORG	0H
	MOV	MYDATA,#0FFH	
	SETB	EOC     	
	CLR	ALE    	
	CLR	SC    	
	CLR	OE       	
BACK:
	CLR	ADDR_C  	
	CLR	ADDR_B   	
	SETB	ADDR_A  	
	ACALL	DELAY    	
	SETB	ALE   	
	ACALL	DELAY  	
	SETB	SC     	
	ACALL	DELAY
	CLR	ALE
	CLR	SC
HERE: 
	JB	EOC, HERE 	
HERE1: 
	JNB	EOC, HERE1 	
	SETB	OE     	
	ACALL	DELAY  	
	MOV	A,MYDATA  	
	CLR	OE        	
	ACALL	CONVERSION 	
	ACALL	DATA_DISPLAY 	
	SJMP	BACK