#include <LPC214X.H>      // Select Header file
long i;
int main()
{
IODIR1=0xffffffff;	//This register individually controls the direction of each port pin.
 IOCLR1=0xffffffff;				//This register controls the state of output pins.
	While(1)				//Infinite loop
	{
IOSET1=0x00FF0000;	//This register controls the state of output pins in conjunction with the IOCLR register.
		For(i=0;i<100000;i++); 	//Delay
		for(i=0;i<100000;i++);
		IOCLR1=0xffffffff;
		for(i=0;i<100000;i++);
		for(i=0;i<100000;i++);
  }
}