Arduino LC24XX EPROM

#include <Wire.h>
void I2C_eeprom_write_byte( int deviceAddress, unsigned int address, byte data )
{
  int rdata = data;
  Wire.beginTransmission(deviceAddress);
  Wire.send((int)(address >> 8));    // MSB
  Wire.send((int)(address & 0xFF));  // LSB
  Wire.send(rdata);
  Wire.endTransmission();
  delay(10);
}
void I2C_eeprom_write_page( int deviceAddress, unsigned int addressPage, byte* data,  byte length )
{
  Wire.beginTransmission(deviceAddress);
  Wire.send((int)(addressPage >> 8));   // MSB
  Wire.send((int)(addressPage & 0xFF)); // LSB
  byte c;
  for ( c = 0; c < length; c++)
    Wire.send(data[c]);
  Wire.endTransmission();
}
byte I2C_eeprom_read_byte( int deviceAddress, unsigned int address )
{
  byte rdata = 0xFF;
  Wire.beginTransmission(deviceAddress);
  Wire.send((int)(address >> 8));   // MSB
  Wire.send((int)(address & 0xFF)); // LSB
  Wire.endTransmission();
  Wire.requestFrom(deviceAddress,1);
  if (Wire.available()) rdata = Wire.receive();
  return rdata;
}
void I2C_eeprom_read_buffer( int deviceAddress, unsigned int address, byte *buffer, int length )
{
  Wire.beginTransmission(deviceAddress);
  Wire.send((int)(address >> 8));   // MSB
  Wire.send((int)(address & 0xFF)); // LSB
  Wire.endTransmission();
  Wire.requestFrom(deviceAddress,length);
  int c = 0;
  for ( c = 0; c < length; c++ )
    if (Wire.available()) buffer[c] = Wire.receive();
}      
//*************************************************************************************************
static void DumpHex(int deviceAddress, unsigned long startAddress, unsigned long endAddress)
{
  int value;
  int lineCounter;
  char textBuffer[24];
  unsigned long address;
 
  lineCounter = 0;
  address = startAddress;
   
  while (address < endAddress)
  {
    sprintf(textBuffer, "0x%05X - ", address);
    Serial.print(textBuffer);
    sprintf(textBuffer, "0x%05X - ", address + (endAddress - startAddress));
    Serial.print(textBuffer);
    textBuffer[0] = 0;
   
    for (int dumpCounter=0; dumpCounter<16; dumpCounter++)
    {
      value = I2C_eeprom_read_byte(deviceAddress,address);
          
      Serial.print(value,HEX);
      Serial.print(" ");
     
      if ((value >= 0x20) && (value < 0x7f))
      {
        textBuffer[dumpCounter % 16] = value;
      }
      else
      {
        textBuffer[dumpCounter % 16] = '.';
      }
     
      address++;
    }
   
    textBuffer[16] = 0;   
    Serial.println(textBuffer); 
  }
}
void I2C_eeprom_delete(int deviceAddress, unsigned long startAddress, unsigned long endAddress)
{ 
  for(unsigned long address=startAddress; address < endAddress + 1; address++) {
    if (I2C_eeprom_read_byte(deviceAddress,address) != 0xFF)
    {
      Serial.println(address,HEX);
      I2C_eeprom_write_byte(deviceAddress,address,0xFF);
    }
  }
}
#define EEPROM_DEVICE  0x50
#define EEPROM_INIT    0x00000
#define EEPROM_END     0x08000
void setup()
{
 
  Wire.begin();
  Serial.begin(9600);
 
  long ms;
 
  Serial.println("Deleting..");
  ms = millis();
  I2C_eeprom_delete(EEPROM_DEVICE,EEPROM_INIT,EEPROM_END);
  Serial.print(millis()-ms);
  Serial.println("ms");
 
  Serial.println("---- Dump ---");
 
  DumpHex(EEPROM_DEVICE,EEPROM_INIT,EEPROM_INIT+0x0f); 
  DumpHex(EEPROM_DEVICE,EEPROM_END-0x0f,EEPROM_END); 
 
  Serial.println("---- Write at begin ---");
 
  DumpHex(EEPROM_DEVICE,EEPROM_INIT,EEPROM_INIT+0x0f); 
  Serial.println("Writing...");
  I2C_eeprom_write_byte(EEPROM_DEVICE,EEPROM_INIT,0xCC);
  I2C_eeprom_write_byte(EEPROM_DEVICE,EEPROM_INIT+0x0f,0xCC);
  DumpHex(EEPROM_DEVICE,EEPROM_INIT,EEPROM_INIT+0x0f);
  Serial.println("---- Writte at end ---");
  DumpHex(EEPROM_DEVICE,EEPROM_END-0x0F,EEPROM_END); 
  Serial.println("Writing...");
  I2C_eeprom_write_byte(EEPROM_DEVICE,EEPROM_END,0xCC);
  I2C_eeprom_write_byte(EEPROM_DEVICE,EEPROM_END-0x0f,0xCC);
  DumpHex(EEPROM_DEVICE,EEPROM_END-0x0f,EEPROM_END); 
 
  Serial.println("---- end ---");    
 
  //DumpHex(EEPROM_DEVICE,EEPROM_INIT,EEPROM_INIT+0x0f);
  //DumpHex(EEPROM_DEVICE,EEPROM_END-0x0f,EEPROM_END);   
}
void loop()
{
}

Deleting..
18443ms
0x0000 - 0x000F - FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
0x7FF0 - 0x7FFF - FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
----
0x0000 - 0x000F - FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
Writing...
0x0000 - 0x000F - CC FF FF FF FF FF FF FF FF FF FF FF FF FF FF CC ................
----
0x7FF0 - 0x7FFF - FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
Writing...
0x7FF0 - 0x7FFF - CC FF FF FF FF FF FF FF FF FF FF FF FF FF FF CC ................
----