Hi! 

Iam doing the i2c programming for video encoder in the BF533 EZ-kit lite ... 
Actually i want to brief my coding thats why iam explaining all these..please 
see upto end...........and help me 

Here start cond is sdata=1 to 0 when sclk is high and sdata is PF1 and SCLK is PF0... Slave
Address of video encoder specified in data sheet is:01010110 lsb is for writing 1st bit is for
ALSB bit(tied to gnd).. 
Iam pasting my example code here.......i don't know the problem 
Actually i want to test whether the slave is responding or not so uptothat only have written
the code.. 

First i have configured the PF0 and PF1 as outputs and i have given the start condition and
after that i have sent the slave address then to have ACK i have configured the PF1(SDATA) as
input and i have checked the condtion whether the slave pulled the line low or not if it is low
means i have glown some led in the kit for the identification.. 

#include <cdefBF533.h> 
#define pFlashA_PortB_Dir (volatile unsigned char *)0x20270007 
#define pFlashA_PortB_Data (volatile unsigned char *)0x20270005 

#define pFlashA_PortA_Dir (volatile unsigned char *)0x20270006 
#define pFlashA_PortA_Data (volatile unsigned char *)0x20270004 
void Init_EBIU(void) 
{ 

*pEBIU_AMBCTL0 = 0x7bb07bb0; // <--|Write access time = 7 cycles, read access time = 11
cycles, no ARDY 
*pEBIU_AMBCTL1 = 0x7bb07bb0; // |Hold time = 2 cycles, setup time = 3 cycles, transition time =
4 cycles 
*pEBIU_AMGCTL = 0x000F; // |Enable all memory banks 

}//end Init_EBIU 
void main() 

{ 
unsigned int a=1,i=4000,t; 
Init_EBIU(); 

///////////we have to reset the video encoder 
//////////////////////////////////////////////// 
*pFlashA_PortA_Dir=0x0004; 
*pFlashA_PortA_Data=0x0000;//reset the encoder 
*pFlashA_PortA_Data=0x0004;//enable the encoder 

//////////////////////////////////////////////// 

*pFIO_DIR=0x0003; 
//issue START condition PF0=1 and PF1=1 to 0 
*pFIO_FLAG_D=0x0001; 
t=i; 
while(t--); 
*pFIO_FLAG_D=0x0003; 
t=i; 
while(t--); 
*pFIO_FLAG_D=0x0001; 

//send the slave address and wait for ACK signal(LOW signal on DATA bus) 
//Slave address 01010110 for 0--->PF0 0 to 1(1 cycle) and PF1=0; 
// 1--->PF0 0 to 1(1 cycle) and PF1=1; 
*pFIO_FLAG_D=0x0000; 
*pFIO_FLAG_D=0x0001; 

*pFIO_FLAG_D=0x0002; 
*pFIO_FLAG_D=0x0003; 

*pFIO_FLAG_D=0x0000; 
*pFIO_FLAG_D=0x0001; 

*pFIO_FLAG_D=0x0002; 
*pFIO_FLAG_D=0x0003; 

*pFIO_FLAG_D=0x0000; 
*pFIO_FLAG_D=0x0001; 

*pFIO_FLAG_D=0x0002; 
*pFIO_FLAG_D=0x0003; 

*pFIO_FLAG_D=0x0002; 
*pFIO_FLAG_D=0x0003; 

*pFIO_FLAG_D=0x0000; 
*pFIO_FLAG_D=0x0001; 
// Wait for the ACK signal............ 
*pFIO_DIR =0x0002; //PF1 is now input 
*pFIO_POLAR=0x0000; 
*pFIO_EDGE =0x0000; 
*pFIO_INEN =0x0002; 

*pFIO_FLAG_C=0x0001; 

if((*pFIO_FLAG_D) & 0x0002 == 0) 
*pFlashA_PortB_Data=0x0001; 
else *pFlashA_PortB_Data=0x0020; 

*pFIO_FLAG_D=0x0001; 
} 

Thank u in adwance.......