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