Question for AtomSoft

/************************************
Includes
*************************************/
#include <p18f448.h>
#include <delays.h>
#include <stdio.h>
#include <i2c.h>
#include "lcd.h"

/************************************
Config
*************************************/
#pragma config WDT = OFF, LVP = OFF, OSC = HSPLL

/************************************
Constants / Definitions
*************************************/
#define RA 0xA1     //Read Address
#define WA 0xA0    //Write address

#define CDD PORTDbits.RD0

/************************************
Global Variables
*************************************/
char myName[16];
char myCode[5];

char LcdBuff[17];
//char tempName[6] = {'I','r','e','n','e',0};
//char tempCode[5] = {0x30,0x34,0x35,0x36,0x00};
/************************************
Prototypes
*************************************/
void main(void);
void init_i2c(char speed);
void ReadCard(void);
void WriteCard(char address, char* string);
/************************************
Main
*************************************/
void main(void)
{   
    ADCON1 = 0x0F;			//Digital Pins (we dont need ADC)
    
    TRISA = 0;
    TRISB = 0;
    TRISC = 0;
    TRISD = 0;
    //All Outputs

    LATA = 0;
    LATB = 0;
    LATC = 0;
    LATD = 0;
    //All Low

    CMCON = 0x07;
    TRISDbits.TRISD0 = 1;    //This is the Card Detect
    
    init_i2c(0);
    LCD_Init();


    while(1)
    {
        LCD_LINE(1);
        LCD_STR((unsigned rom char*)"    AtomSoft    ");
        DelayMS(1);

        ReadCard();
        LCD_LINE(2);
        LCD_STR2(myName);

        while(CDD == 1);
        LCD_CLEAR(2);
        DelayMS(100);
    }
}
void WriteCard(char address, char* string)
{
    while(CDD != 1);
    DelayMS(1);

    while(*string)
    {
        EEByteWrite(WA,address, *string++);
        DelayMS(5);
        address++;
    }

    EEByteWrite(WA, address, 0x00);
    DelayMS(5);
}

void ReadCard(void)
{
    char x;

    for(x=0;x<16;x++)
        myName[x] = 0x00;

    for(x=0;x<5;x++)
        myCode[x] = 0x00;

    while(CDD != 1);
    DelayMS(100);

    EESequentialRead(WA,0,myName,16);
    EESequentialRead(WA,16,myCode,5);
}
void init_i2c(char speed)
{
    //Clock is 10MHz w/PLL = 40MHz
    OpenI2C(MASTER, SLEW_OFF);// Initialize I2C module
    
    //KHz = FOSC/(4 * (SSPADD + 1))... or ((FOSC / Speed) / 4) - 1 = SSPADD
    switch(speed)
    {
      case 0:
          SSPADD = 99;   //100KHz 
          break;
      case 1:
          SSPADD = 49;   //200KHz
          break;
      case 2:
          SSPADD = 24;   //400KHz
          break;
    }    
}