i have used p89v51rd2

#include<p89v51rx2.h>
#include <intrins.h>
//this pin for enable
sbit enable=P1^2;
//this pin for clock

sbit clk=P1^0;
//this pin for direction
sbit direction=P1^2;
// this function for delay
void delay()
{
 	unsigned char i;
	for(i=0;i<19;i++)
	{
 		_nop_();
	}
}
void main()
{
	unsigned int i=0;	
	delay();
	enable=0;
	clk=1;
	delay();
	direction=0;
	enable=1;
	while(1)
	{
	 	clk=1;	 //here i generate clock haveing total period is 0.723 ms
	    delay();
		delay();
		delay();
		delay();
		clk=0;
		delay();
		delay();
		delay();
		delay();
		
	}

}