#define sclk 5 //Define pin 5 as clock
#define sdio 6 //Define pin 6 as data

byte mode;

void WriteAddr(byte address, byte data)
{
  pinMode(sdio,OUTPUT);
  shiftOut(sdio,sclk,MSBFIRST,address|0x80);
  shiftOut(sdio,sclk,MSBFIRST,data);
}

int ReadAddr(byte address)
{
  int data;
  pinMode(sdio,OUTPUT);
  shiftOut(sdio,sclk,MSBFIRST,address);
  delayMicroseconds(100);
  pinMode(sdio,INPUT);
  data = shiftIn(sdio,sclk,MSBFIRST);
  return data;
}


void setup()
{
  Serial.begin(9600);
  pinMode(sclk,OUTPUT);
  digitalWrite(sclk,LOW);  
  delay(100);
  mode=B00000001;
  WriteAddr(0x00,mode);
}

void loop()
{
  WriteAddr(0x00,mode);
  delay(500);
    //*********************************************
 byte mode_odczyt=ReadAddr(0x00);
    Serial.print(ReadAddr(0x01),DEC); 
        Serial.print("\t");
    Serial.print(ReadAddr(0x20),DEC);
      Serial.print("\t");  
    Serial.print(ReadAddr(0x02),DEC); 
        Serial.print("\t");
    Serial.print(ReadAddr(0x03),DEC);
       Serial.print("\t"); 
    Serial.print(ReadAddr(0x04),DEC); 
        Serial.print("\t");
    Serial.print("mode_odczyt"); 
        Serial.print("\t");
    Serial.print(mode_odczyt); 
        Serial.print("\t");    
    Serial.print("mode_obl"); 
        Serial.print("\t");
    Serial.print(mode); 
        Serial.print("\t"); 
   Serial.print("\n");

}