C8051F340 flashing led example

#include <c8051f340.h>                 // SFR declarations
 
 
//-----------------------------------------------------------------------------
// Function Prototypes
//-----------------------------------------------------------------------------
 
void OSCILLATOR_Init (void);           
void PORT_Init (void);
void delay(unsigned int t);
 
//-----------------------------------------------------------------------------
// main() Routine
//-----------------------------------------------------------------------------
 
void main (void)
{
   PCA0MD &= ~0x40;                    // WDTE = 0 (clear watchdog timer
                                       // enable)
 
   PORT_Init();                        // Initialize Port I/O
   OSCILLATOR_Init ();                 // Initialize Oscillator
 
   while (1)
   {
 
         P1 = 0x00;                     // Turn on LED
				 delay(1000);
         P1 = 0xFF;                     // Else, turn it off
         delay(1000);             
 
   }                                   
}                                     
 
 
 
//-----------------------------------------------------------------------------
// OSCILLATOR_Init
//-----------------------------------------------------------------------------
 
void OSCILLATOR_Init (void)
{
   OSCICN |= 0x03;                     // Configure internal oscillator for
                                       // its maximum frequency (24.5 Mhz)
}
 
//-----------------------------------------------------------------------------
// PORT_Init
//-----------------------------------------------------------------------------
void PORT_Init (void)
{
   P1MDIN = 0xFF;
	 P1MDOUT = 0xFF;                     // enable LEDs as push-pull outputs
   XBR1    = 0x40;                    // Enable crossbar and enable                                     // weak pull-ups
}
 
 
//-----------------------------------------------------------------------------
// Delay
//-----------------------------------------------------------------------------
 void delay(unsigned int t)
{
    unsigned int i,j;
    for(i=0;i<t;i++)
        for(j=0;j<250;j++);
}