CS	BIT	P2.0
	SCLK	BIT	P2.1
	DIN	BIT	P2.2
	DOUT	BIT	P2.3
	SETB	DOUT		
	CLR	CS		
	SETB	SCLK
	ACALL	DELAY		
	CLR	SCLK		
	ACALL	DLELAY	
	CLR A
	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