CS	BIT P2.0
	SCLK	BIT P2.1
	DIN	BIT P2.2
	DOUT	BIT P2.3
	ORG	0H
MAIN:	MOV	A,#9EH	
	MOV	R3,#8		
	CLR	CS		
H1: 	RLC	A		
	MOV	DIN,C		
	CLR	SCLK		
	ACALL DELAY	
	SETB	SCLK		
	ACALL DELAY	
	DJNZ	R3,H1		
	SETB	CS		
	CLR	SCLK		
	SETB	DOUT		
	CLR	CS		
	SETB	SCLK
	ACALL	DELAY		
	CLR	SCLK		
	ACALL	DLELAY	
	MOV	R3,#8		
H2:	SETB	SCLK		
	ACALL	DELAY		
	CLR	SCLK		
	ACALL	DELAY	
	MOV	C,DOUT	
	RLC	A		
	DJNZ	R3,H2		
	SETB	CS		
	MOV	P1,A		
	SJMP	MAIN