/* ----- file I2C_BUS.H ----- */



/* Use it for interfacing the devices connected to the I2C-bus              */



/* WARNING: This device-driver is NOT compatible with the following         */
/* I2C-bus variants:                                                        */
/*   - multi-master mode: only one master (the controller) with many slaves */
/*                        is supported                                      */
/*   - fast-mode operation: operating the I2C-bus with 400kbit/s is not     */
/*                          supported                                       */
/*   - 10-bit addressing scheme: only 7-bit scheme is supported             */
/* NOTE: If the SCL-line is output-only on this target, then the Slow-Down- */
/*       Mode is not possible ! In this case set the Slow-Down-Mode value   */
/*       to ZERO !                                                          */



#ifndef  _I2C_BUS_H_
#define  _I2C_BUS_H_


#ifndef  _MISC_H_
#include "MISC.H"
#endif

#ifndef  _I2C_HARD_H_                  /* I2C-hardware interface            */
#include "I2C_HARD.H"
#endif



#define  I2C_SUCCESSFUL       0x00
#define  I2C_NO_ACKNOWLEDGE   0xFE
#define  I2C_NOT_IMPLEMENTED  0xFF



extern   void  I2CInit( void );
extern   BYTE  I2CWrite( BYTE *, BYTE, BYTE, WORD );
extern   BYTE  I2CRead( BYTE *, BYTE, BYTE, WORD );



extern   void  I2CStart( void );
extern   void  I2CStop( void );
extern   void  I2CSendAck( void );
extern   BYTE  I2CReceiveAck( void );
extern   void  I2CSendBit( BYTE );
extern   BYTE  I2CReceiveBit( void );
extern   void  I2CWriteByte( BYTE );
extern   BYTE  I2CReadByte( void );

#endif


/* ----- end I2C_BUS.H ----- */